EXECUTION COPY


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                            Stock Purchase Agreement

                                  By and among

                         PHARMACEUTICAL RESOURCES, INC.,

                            KALI LABORATORIES, INC.,

                               VGS HOLDINGS, INC.

                                       AND

                               THE SHAREHOLDERS OF
                             KALI LABORATORIES, INC.



                           Dated as of: April 2, 2004



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                                  TABLE OF CONTENTS



1.   DEFINITIONS; INTERPRETATIONS............................................1

   1.1.  DEFINITIONS.........................................................1
   1.2.  INTERPRETATIONS....................................................12

2.   THE TERMS OF THE ACQUISITION...........................................12

   2.1.  THE PURCHASE AND SALE OF THE KALI SHARES...........................12
   2.2.  PAYMENT OF PURCHASE PRICE; ALLOCATION; CASH
               PURCHASE PRICE ADJUSTMENT....................................13
   2.3.  CLOSING............................................................16
   2.4.  PURCHASE PRICE ADJUSTMENT..........................................16
   2.5.  SECTION 338 MAKE-WHOLE AMOUNT......................................18

3.   REPRESENTATIONS AND WARRANTIES RELATING TO KALI........................19

   3.1.  ORGANIZATION AND QUALIFICATION.....................................19
   3.2.  DUE AUTHORIZATION; ENFORCEABILITY..................................19
   3.3.  CAPITALIZATION; OPTIONS; SHAREHOLDER RIGHTS........................20
   3.4.  KALI ORGANIZATIONAL DOCUMENTS......................................20
   3.5.  NON-CONTRAVENTION..................................................20
   3.6.  CONSENTS...........................................................21
   3.7.  FINANCIAL STATEMENTS; RECEIVABLES AND PAYABLES;
               UNDISCLOSED LIABILITIES......................................21
   3.8.  BOOKS AND RECORDS..................................................22
   3.9.  ABSENCE OF CHANGES.................................................22
   3.10. PERMITS........................................................... 23
   3.11. LEGAL COMPLIANCE...................................................23
   3.12. EMPLOYEES AND EMPLOYEE BENEFIT PLANS AND ARRANGEMENTS..............25
   3.13. TAX MATTERS........................................................27
   3.14. ENVIRONMENTAL MATTERS..............................................28
   3.15. LITIGATION; CLAIMS.................................................29
   3.16. MATERIAL AGREEMENTS................................................29
   3.17. REAL ESTATE........................................................30
   3.18. INTELLECTUAL PROPERTY..............................................32
   3.19. DOMAIN NAMES.......................................................33
   3.20. BANK ACCOUNTS; CREDIT CARDS; CORPORATE ACCOUNTS; POWERS
               OF ATTORNEY..................................................33
   3.21. TITLE TO PROPERTIES AND ASSETS; INVENTORY..........................33
   3.22. PRODUCTS...........................................................34
   3.23. CERTAIN BUSINESS MATTERS...........................................34
   3.24. CUSTOMERS..........................................................34
   3.25. INSURANCE..........................................................35
   3.26. TRANSACTIONS WITH RELATED PARTIES..................................35
   3.27. BROKERS............................................................35

                                        i


4.   REPRESENTATIONS AND WARRANTIES OF THE KALI SHAREHOLDERS................35

   4.1.  AUTHORITY TO EXECUTE AND PERFORM AGREEMENTS; ENFORCEABILITY........35
   4.2.  TITLE TO KALI SHARES...............................................36
   4.3.  LITIGATION.........................................................36
   4.4.  INVESTMENT INTENT..................................................36
   4.5.  INFORMATION........................................................36
   4.6.  ACCREDITATION......................................................36
   4.7.  ELIGIBLE S CORPORATION SHAREHOLDER.................................37

5.   REPRESENTATIONS AND WARRANTIES RELATING TO PRI.........................37

   5.1.  ORGANIZATION AND DUE AUTHORIZATION.................................37
   5.2.  NO VIOLATION; CONSENTS AND APPROVALS...............................37
   5.3.  INVESTMENT INTENT..................................................37
   5.4.  LITIGATION.........................................................37
   5.5.  BROKERS............................................................37
   5.6.  SECURITIES LAW FILINGS.............................................38

6.   COVENANTS AND AGREEMENTS...............................................38

   6.1.  CONDUCT OF THE BUSINESS............................................38
   6.2.  PRE-CLOSING ACCESS.................................................39
   6.3.  COMMERCIALLY REASONABLE EFFORTS; ANTI-TRUST FILINGS;
               FURTHER ASSURANCES...........................................40
   6.4.  NON-COMPETITION....................................................41
   6.5.  BIOSTUDIES PRODUCTION..............................................43
   6.6.  PUBLIC ANNOUNCEMENTS...............................................44
   6.7.  EMPLOYEES..........................................................44
   6.8.  RESIGNATIONS; REVOCATIONS; RELEASES................................44
   6.9.  CONFIDENTIALITY....................................................44
   6.10. NON-SOLICITATION...................................................45
   6.11. FINANCIAL STATEMENTS AND OTHER INFORMATION.........................45
   6.12. USE OF LEASED REAL PROPERTY........................................45
   6.13. ISRA/ENVIRONMENTAL COMPLIANCE......................................46
   6.14. EXCLUSIVE DEALINGS.................................................47
   6.15. COMMERCIALLY REASONABLE EFFORTS TO CLOSE...........................48
   6.16. FURTHER ASSURANCES; PERRIGO CLAIM..................................48
   6.17. SUPPLEMENTAL DISCLOSURE............................................49
   6.18. LEASES.............................................................49
   6.19. VGS LOAN...........................................................49
   6.20. CONDUCT OF KALI BUSINESS POST-CLOSING..............................49

7.   CERTAIN TAX MATTERS....................................................50

   7.1.  TAX INDEMNIFICATION................................................50
   7.2.  STRADDLE PERIOD....................................................50
   7.3.  SECTION 338(H)(10) ELECTION........................................50
   7.4.  ALLOCATIONS OF PURCHASE PRICE......................................51

                                       ii


   7.5.  S CORPORATION STATUS...............................................52
   7.6.  TAX PERIODS ENDING ON OR BEFORE THE CLOSING DATE...................52
   7.7.  COOPERATION ON TAX MATTERS.........................................52
   7.8.  CERTAIN TAXES......................................................53

8.   CONDITIONS TO OBLIGATION OF PRI TO CLOSE...............................53

   8.1.  AGREEMENTS AND CONDITIONS..........................................53
   8.2.  REPRESENTATIONS AND WARRANTIES.....................................53
   8.3.  NO LEGAL PROCEEDINGS...............................................53
   8.4.  KALI SHAREHOLDERS' AND OFFICERS' CERTIFICATE.......................54
   8.5.  PERRIGO RESOLUTION.................................................54
   8.6.  DEATH OR DISABILITY OF MR. SUBRAMANIAN.............................54
   8.7.  ISRA CLEARANCE.....................................................54
   8.8.  GOVERNMENTAL APPROVALS.............................................54
   8.9.  SECRETARY'S CERTIFICATE............................................54
   8.10. CERTIFICATE OF STATUS..............................................54
   8.11. CLOSING DELIVERIES.................................................54
   8.12. IP RELEASES; EMPLOYMENT REAFFIRMATIONS.............................54

9.   CONDITIONS TO OBLIGATIONS OF KALI AND THE KALI SHAREHOLDERS TO CLOSE...55

   9.1.  AGREEMENTS AND CONDITIONS..........................................55
   9.2.  REPRESENTATIONS AND WARRANTIES.....................................55
   9.3.  NO LEGAL PROCEEDINGS...............................................55
   9.4.  OFFICER'S CERTIFICATE..............................................55
   9.5.  GOVERNMENTAL APPROVALS.............................................55
   9.6.  CLOSING DELIVERIES.................................................55

10.  TERMINATION............................................................55

   10.1. TERMINATION........................................................55
   10.2. EFFECT OF TERMINATION..............................................56
   10.3. LIQUIDATED DAMAGES AND EXPENSES....................................56

11.  SURVIVAL; INDEMNIFICATION..............................................58

   11.1. SURVIVAL OF REPRESENTATIONS, WARRANTIES AND COVENANTS..............58
   11.2. INDEMNIFICATION....................................................59
   11.3. PROCEDURES FOR INDEMNIFICATION.....................................60
   11.4. LIMITATIONS........................................................61
   11.5. RELATIONSHIP WITH CASH PURCHASE PRICE ADJUSTMENTS..................62
   11.6. INDEMNIFICATION WAIVER.............................................62
   11.7. ORDER OF INDEMNIFICATION...........................................62
   11.8. RESTRICTION ON TRANSFER............................................63

12.  MISCELLANEOUS..........................................................63

   12.1. FEES AND EXPENSES..................................................63
   12.2. FURTHER ASSURANCES; COOPERATION....................................63
   12.3. NOTICES............................................................63

                                      iii


   12.4. ENTIRE AGREEMENT...................................................64
   12.5. SEVERABILITY.......................................................64
   12.6. BINDING EFFECT; ASSIGNMENT.........................................65
   12.7. NO THIRD-PARTY BENEFICIARIES.......................................65
   12.8. COUNTERPARTS.......................................................65
   12.9. GOVERNING LAW......................................................65
   12.10. AMENDMENTS; WAIVERS...............................................65
   12.11. APPOINTMENT AND DUTIES OF THE KALI SHAREHOLDERS' REP..............65

EXHIBITS:

   Exhibit A      Subramanian Employment Agreement
   Exhibit B      Warrant Agreement
   Exhibit C      Facility Lease and Additional Terms
   Exhibit D      VGS Note

                                       iv

SCHEDULES:
Schedule 2.1 Number of Shares Owned
Schedule 2.2(b) Allocation of Purchase Price
Schedule 3.1 Business Qualifications
Schedule 3.3(c) Capitalization
Schedule 3.3(d) Subscription Rights
Schedule 3.3(e) Shareholder Rights
Schedule 3.5 Non-contravention
Schedule 3.6 Consents
Schedule 3.7(a) Kali Financial Statements
Schedule 3.7(d) Absence of Undisclosed Liabilities
Schedule 3.9 Absence of Certain Changes
Schedule 3.10 Permits
Schedule 3.11 Legal Compliance
Schedule 3.12(a)Employees
Schedule 3.12(b)Employment/Severance Agreements
Schedule 3.12(c)Kali Benefit Plans
Schedule 3.14(a)Environmental Laws
Schedule 3.14(d)Environmental Claims
Schedule 3.14(e)Environmental Notices
Schedule 3.14(f)Underground Storage Tanks
Schedule 3.14(g)Environmental Permits
Schedule 3.15 Litigation; Claims
Schedule 3.16(a)Kali Material Agreements
Schedule 3.16(b)Breaches; Consents
Schedule 3.17(a)Leased Real Property
Schedule 3.17(b)Real Property Leases
Schedule 3.17(c)Occupancy
Schedule 3.17(d)Lawful Operation
Schedule 3.18(a)Intellectual Property Rights
Schedule 3.18(c)Intellectual Property Claims
Schedule 3.18(d)Patents
Schedule 3.19 Domain Names
Schedule 3.20 Bank Accounts; Credit Cards; Corporate Accounts; Powers of
  Attorney
Schedule 3.21 Title to Properties
Schedule 3.22 Products
Schedule 3.23 Certain Business Matters
Schedule 3.24 Customers
Schedule 3.25 Insurance
Schedule 3.26(a)Affiliated Transactions
Schedule 4.2 Title to Kali Shares
Schedule 6.1(a) Exceptions to Conduct of Business Covenant

                                       v


                            STOCK PURCHASE AGREEMENT

            STOCK PURCHASE  AGREEMENT (this  "Agreement"),  dated as of April 2,
2004 (the "Effective  Date"),  by and among  Pharmaceutical  Resources,  Inc., a
Delaware corporation ("PRI"), Kali Laboratories,  Inc., a New Jersey corporation
("Kali"),  VGS Holdings,  Inc., a New Jersey corporation  ("VGS"),  and the Kali
Shareholders (as defined below).  Each of PRI, Kali and the Kali Shareholders is
referred  to  herein  individually,  as  a  "Party"  and  collectively,  as  the
"Parties."

                              W I T N E S S E T H:

            WHEREAS,  Veerappan  S.  Subramanian,   Ph.D.  ("Mr.  Subramanian"),
Govindammal  N.  Subramanian,  M.D.  ("Ms.  Subramanian"),  The Anu  Subramanian
Irrevocable Trust (the "AS Trust") and The Ilango Subramanian  Irrevocable Trust
(the "IS Trust" and, together with Mr.  Subramanian,  Ms. Subramanian and the AS
Trust, the "Kali  Shareholders") own all of the issued and outstanding shares of
capital stock of Kali (the "Kali Shares"); and

            WHEREAS, PRI desires to acquire from the Kali Shareholders,  and the
Kali  Shareholders  desire  to sell to PRI,  on the  terms  and  subject  to the
conditions set forth herein, the Kali Shares.

            NOW, THEREFORE,  in consideration of the foregoing and of the mutual
representations,  warranties,  covenants and agreements  contained  herein,  the
Parties, intending to be legally bound hereby, agree as follows:


            1.    DEFINITIONS; INTERPRETATIONS.
                  ----------------------------

            1.1.  DEFINITIONS.  The following  terms shall have the meanings set
forth below:

            "505(B)(2)  APPLICATION"  means  the  filing  of an NDA with the FDA
under Section 505(b)(2) of the FDCA.

            "AAA  PAYMENTS"  shall have the meaning set forth in Section  2.2(d)
hereof.

            "ACCOUNTANT  ARBITRATOR" shall have the meaning set forth in Section
2.4(c) hereof.

            "ACCUMULATED  ADJUSTMENTS  ACCOUNT"  means with respect to each Kali
Shareholder,  the allocable  amount of profit of Kali that such Kali Shareholder
has previously  included within such  Shareholder's  taxable income for any year
but as to which such Shareholder has not received such allocable amount.

            "ADDITIONAL  AMOUNT"  shall  have the  meaning  set forth in Section
2.5(a) hereof.

            "ADDITIONAL  LOAN" shall have the meaning set forth in  10.3(a)(iii)
hereof.



            "AFFILIATE" of any specified Person means any other Person, directly
or indirectly,  controlling or controlled by, or under direct or indirect common
control  with,  such  specified  Person.  For the  purposes of this  definition,
"control,"  when used with respect to any specified  Person,  means the power to
direct the  management  and  policies of such  Person,  directly or  indirectly,
whether  through the ownership of voting  securities,  by contract or otherwise.
Following  the  Closing,  Kali shall be deemed to be an  "Affiliate"  of PRI for
purposes hereof.

            "AGREEMENT" shall have the meaning set forth in the preamble hereof.

            "ANDA"  means an  abbreviated  new drug  application,  as more fully
defined in 21 U.S.C. Section 355.

            "ASSET  ALLOCATION  STATEMENT  UNDER  SECTION  338"  shall  have the
meaning set forth in Section 7.4 hereof.

            "AS TRUST" shall have the meaning set forth in the recitals hereof.

            "ASSOCIATE" shall have the meaning set forth in Rule 405 promulgated
under the Securities Act.

            "BANKRUPTCY AND EQUITY  EXCEPTION"  shall have the meaning set forth
in Section 3.2 hereof.

            "BIOSTUDY"   means   a  set   of   analytical   studies,   including
pharmacokinetic  (PK)  studies,  and  clinical  trials or other  tests  that are
reasonably  designed to meet FDA procedures and requirements for  bioequivalence
of an applicable product to the branded version thereof.

            "BOOKS AND  RECORDS"  means all books and records of Kali of any and
every  kind,  including  compact  disks,  compact  disk lists,  ledgers,  files,
reports,  plans, drawings and operating records, held or maintained by, or under
the  control of,  Kali,  pertaining  to its  properties  and assets,  customers,
suppliers,   distributors  or  personnel  (including  directors,   officers  and
employees),  disk or tape  files,  printouts,  runs or  other  computer-prepared
information and its interests in all computer programs required to obtain access
to, and the equipment containing, all such computer-based information,  product,
business and marketing plans and sales, maintenance and production records.

            "BUSINESS DAY" means any day other than a Saturday,  Sunday, Federal
holiday or other day that banks in the State of New York are  required by Law to
be closed.

            "BUSINESS  INTERRUPTION EVENT" means the occurrence and continuation
for a period of thirty  (30) or more  consecutive  days at any time  during  the
thirty (30) month-period commencing immediately after the Closing Date of one or
more of the  following  events:  (a) the  failure of PRI to provide  Kali,  with
reasonably  adequate  funding  (including  research & development  or Biostudies
funding), facility maintenance,  equipment,  personnel, executive management, in
each case,  reasonably  necessary to permit Kali to conduct the business of Kali
in a manner  consistent with the manner in which the Kali Business was conducted
immediately  prior  to  the  Closing  (provided,  that  the  employment  of  Mr.
Subramanian  as President of Kali shall be prima facie evidence of the provision
of  adequate  executive  management),  other than any  failure  that is a direct

                                       2


result  of an act or  omission  of Mr.  Subramanian;  (b) the  FDA or any  other
Governmental  Authority  prohibiting or materially  restricting the operation of
the business of Kali;  or (c) the  relocation  of Kali's  principal  facility in
Somerset,  New Jersey to a facility that is not fully qualified  pursuant to all
Laws (including FDA regulations)  applicable to the development,  manufacturing,
packaging  and shipping of Kali's  products.  For the  avoidance  of doubt,  the
termination of the employment of Mr.  Subramanian by Par or PRI (for any reason)
shall not, in and of itself, constitute a Business Interruption Event.

            "CASH  PURCHASE  PRICE"  shall have the meaning set forth in Section
2.2(a)(i) hereof.

            "CLAIMS  LIMITATION"  shall  have the  meaning  set forth in Section
11.4(a) hereof.

            "CLOSING" shall have the meaning set forth in Section 2.3(a) hereof.

            "CLOSING  BALANCE SHEET" shall have the meaning set forth in Section
2.4(b) hereof.

            "CLOSING BONUSES" shall have the meaning set forth in Section 2.2(d)
hereof.

            "CLOSING  CERTIFICATE"  shall have the  meaning set forth in Section
2.4(b) hereof.

            "CLOSING  DATE" shall have the  meaning set forth in Section  2.3(a)
hereof.

            "CLOSING  PRICE"  shall  have  the  meaning  set  forth  in  Section
2.2(a)(iv) hereof.

            "CODE" means the Internal Revenue Code of 1986, as amended.

            "COMPETE"  shall have the  meaning  set forth in  Section  6.4(a)(i)
hereof.

            "CONSENT" shall have the meaning set forth in Section 3.6 hereof.

            "CORPORATE  ACCOUNTS AND POWERS" shall have the meaning set forth in
Section 3.20 hereof.

            "CONTINUING  EMPLOYEES"  shall have the meaning set forth in Section
6.7 hereof.

            "CONTROLS"  shall  have the  meaning  set forth in  Section  6.13(g)
hereof.

            "CSA"  means the  Controlled  Substances  Import and Export  Act, 21
U.S.C. Section 951 ET SEQ.

            "CURRENT GOOD MANUFACTURING  PRACTICE REGULATIONS" means the current
good  manufacturing  practice  regulations set forth in 21 C.F.R.  Parts 210 and
211.

            "DEA"  means  the  U.S.  Drug  Enforcement  Administration,  or  any
successor Governmental Authority.

            "DEDUCTIBLE"  shall have the  meaning  set forth in Section  11.4(a)
hereof.
                                       3



            "DEFINITIVE  PRODUCT  LIST"  shall  have the  meaning  set  forth in
Section 6.4(a)(ii) hereof.

            "DETERMINATION  DATE"  shall have the  meaning  set forth in Section
6.4(a)(ii) hereof.

            "DISPUTED  ITEMS" shall have the meaning set forth in Section 2.4(c)
hereof.

            "DISRUPTION DAMAGES" shall have the meaning set forth in Section 6.5
hereof.

            "DMFS" shall have the meaning set forth in Section 3.11(e) hereof.

            "EFFECTIVE  DATE" shall have the  meaning set forth in the  preamble
hereof.

            "EMPLOYMENT   REAFFIRMATIONS"   means  the   reaffirmations  of  the
employment  agreements entered into between Kali and each of Muthusamy Shanmugan
and John Joseph.

            "ENVIRONMENTAL  CLAIMS"  means  any  and all  liabilities,  damages,
obligations,  suits, investigations,  proceedings,  fines, penalties, judgments,
claims or other losses relating to or arising under any (i)  Environmental  Laws
and (ii) Environmental Matters, including any liabilities, damages, obligations,
suits, proceedings,  fines, penalties, judgments, claims or other losses arising
from any actual or alleged breach of Section 3.14 hereof.

            "ENVIRONMENTAL  LAWS"  means  any and  all  Federal,  state,  local,
municipal or foreign laws, rules,  orders,  regulations,  statutes,  ordinances,
codes,  guidelines,  policies  or  requirements  of any  Governmental  Authority
regulating or imposing standards of liability or standards of conduct concerning
air,  water,  solid waste,  hazardous  waste,  Hazardous  Materials,  worker and
community  right-to-know,  hazard  communication,  noise,  radioactive material,
resource  protection,  health protection,  and similar  environmental health and
safety  concerns  (including the Clean Water Act, the Toxic  Substances  Control
Act, the Clean Air Act, the Comprehensive  Environmental Response,  Compensation
and Liability Act ("CERCLA"),  the Resource  Conservation  and Recovery Act, the
Solid Waste Disposal Act, the Occupational Safety and Health Act, the New Jersey
Spill  Compensation and Control Act and the New Jersey  Industrial Site Recovery
Act),  and the laws,  rules,  regulations,  common  law,  orders  or  directives
relating  to (i) the  protection  of the  environment  or the public  health and
welfare from actual or potential  exposure (or the effects of such  exposure) to
any actual or potential release,  discharge,  disposal or emission (whether past
or  present)  of any  Hazardous  Substance,  (ii) the  manufacture,  processing,
distribution,  use, treatment,  storage, disposal,  transport or handling of any
Hazardous Substance or (iii) environmental nuisance.

            "ENVIRONMENTAL MATTERS" means any matters arising out of or relating
to  pollution,  contamination  and  any  other  matter  relating  to  emissions,
discharges,   dissemination,   releases  or  threatened  releases  of  Hazardous
Substances on or into the air, surface water, groundwater, soil, land surface or
subsurface,  buildings or facilities or otherwise  arising out of or relating to
the manufacture,  processing,  distribution,  use, treatment, storage, disposal,
transport or handling of Hazardous Substances.

            "ERISA" means the Employee  Retirement  Income Security Act of 1974,
as amended, and the regulations and rules promulgated thereunder.

                                       4


            "ESTIMATED CLOSING  CERTIFICATE" shall have the meaning set forth in
Section 2.4(a) hereof.

            "EXCHANGE  ACT"  means  the  Securities  Exchange  Act of  1934,  as
amended.

            "EXECUTION  CASH" shall have the meaning set forth in Section 2.2(d)
hereof.

            "FACILITY"  means the real property  occupied by Kali and located in
Somerset, New Jersey, including all land, buildings,  structures,  improvements,
fixtures, easements, licenses,  appurtenances and privileges thereon or relating
thereto, as more particularly described on SCHEDULE 3.17(A) hereto.

            "FAILURE TO COMPLETE BIOSTUDIES" shall have the meaning set forth in
Section 6.5 hereof.

            "FDA" means the U.S. Food and Drug Administration,  or any successor
Governmental Authority.

            "FDCA" means the Federal  Food,  Drug,  and Cosmetic  Act, 21 U.S.C.
Section 301 ET SEQ.

            "FORCE  MAJEURE  EVENT"  means a cause  beyond a Party's  reasonable
control,  including,  without  limitation,  an act of God,  an act of the public
enemy or terrorists, strikes, fire, flood, storm, explosion or acts of war.

            "GAAP" means generally accepted  accounting  principles in the U.S.,
as in effect from time to time.

            "GOVERNMENTAL  AUTHORITY" means any U.S. Federal,  state, foreign or
local government or any court, tribunal,  administrative agency or commission or
other  governmental  or  regulatory  authority,  body or agency,  including  any
self-regulatory organization.

            "GROSS-UP"  shall have the  meaning  as set forth in Section  2.5(b)
hereof.

            "HAZARDOUS  SUBSTANCES"  means all  chemicals,  substances,  wastes,
contaminants,  pollutants and materials (1) defined, identified or designated as
hazardous,  dangerous or toxic,  or any similar  term,  pursuant to or under any
applicable  Environmental  Law,  (2) the use,  discharge  or release of which is
regulated  pursuant to or under any  applicable  Environmental  Law and (3) that
could pose a hazard to human health or the environment,  including  asbestos and
asbestos-containing  materials,  oil, radioactive  materials,  lead-based paint,
polychlorinated   biphenyls   ("PCBs")  and   petroleum  or  petroleum   related
by-products.

            "HSR ACT" means the Hart-Scott-Rodino Anti-Trust Improvements Act of
1976, as amended, and the rules and regulations promulgated thereunder.

            "IMPROVEMENTS"  shall have the meaning set forth in Section  3.17(c)
hereof.

            "INDEMNIFYING  PARTY"  shall have the  meaning  set forth in Section
11.3(a) hereof.

                                       5


            "INDEMNITEE"  shall have the  meaning  set forth in Section  11.3(a)
hereof.

            "INITIAL ANDA  PAYMENT"  shall have the meaning set forth in Section
2.2(a)(ii) hereof.

            "INITIAL ANDA THRESHOLD"  means the filing  (irrespective of whether
accepted for filing by the FDA),  in good faith,  with the FDA by Kali,  PRI (or
any of its  Affiliates)  or any Kali  Development  Partner,  in each case,  with
respect to a drug  technology  substantially  developed by Kali, of at least ten
(10) ANDAs  during  the period  from  January 1, 2004  through  the date that is
thirty (30) months from the Closing Date.

            "INTELLECTUAL  PROPERTY  RIGHTS"  means  patents,  patent rights and
patent applications,  know-how,  unpatented inventions,  trade secrets and other
similar  confidential  or proprietary  information,  service marks,  trademarks,
tradenames,  trade  dress,  trade  designations,  copyrights,  pending or issued
registrations  for  any  such  copyrights,  computer  programs,  and  rights  in
processes,  formulas and methods,  technology,  information,  tapes, disks, flow
charts,  diagrams,  object codes, source codes, source listings,  documentation,
manuals or  developments;  claims for  infringement of U.S. and foreign patents,
trademarks,   service   marks,   trade   names   or   copyrights   and  for  the
misappropriation  of trade  secrets;  and rights in  invention  assignments  and
license agreements.

            "IP RELEASE"  means the  irrevocable  release and assignment to Kali
(and  PRI)  by  each  of the  Kali  Shareholders  of all  intellectual  property
(including inventions, ideas and discoveries,  patentable or unpatentable, trade
secrets and copyrightable works) that shall have been made, developed, conceived
or  reduced to  practice  by such  Shareholder,  either  solely or jointly  with
others,  resulting from or arising out of work performed at the Facility or with
Kali's  facilities,  equipment  and  supplies,  or that  results from his use or
knowledge of confidential or trade secret information of Kali.

            "IRS" shall have the meaning set forth in Section 3.12(g) hereof.

            "IS TRUST" shall have the meaning set forth in the recitals hereof.

            "ISRA" shall have the meaning set forth in Section 3.14(h) hereof.

            "ISRA CLEARANCE" shall have the meaning set forth in Section 6.13(b)
hereof.

            "ISRA FILINGS"  shall have the meaning set forth in Section  6.13(b)
hereof.

            "KALI" shall have the meaning set forth in the preamble hereof.

            "KALI  BENEFIT  PLANS"  shall have the  meaning set forth in Section
3.12(c) hereof.

            "KALI  BUSINESS"  means the  business of  manufacturing,  marketing,
distributing, packaging, labeling and developing, researching and selling any of
the  Pharmaceutical  Products  currently  or  formerly  manufactured,  packaged,
labeled,  developed,  researched and sold by Kali,  including those products set
forth on SCHEDULE 3.22 hereto.

                                       6


            "KALI  COMMON  STOCK"  shall have the  meaning  set forth in Section
3.3(a) hereof.

            "KALI DEVELOPMENT PARTNER" means a pharmaceutical company with which
Kali has,  or shall in the  future,  enter  into a drug  development  agreement,
including Perrigo and Eon Labs Inc.

            "KALI EMPLOYEES" shall have the meaning set forth in Section 3.12(a)
hereof.

            "KALI  FINANCIAL  STATEMENTS"  shall have the  meaning  set forth in
Section 3.7(a) hereof.

            "KALI INTELLECTUAL PROPERTY RIGHTS" shall have the meaning set forth
in Section 3.18(a) hereof.

            "KALI  MATERIAL  AGREEMENTS"  shall  have the  meaning  set forth in
Section 3.16(a) hereof.

            "KALI ORGANIZATIONAL  DOCUMENTS" shall have the meaning set forth in
Section 3.4 hereof.

            "KALI  SHARES"  shall  have the  meaning  set forth in the  recitals
hereof.

            "KALI SHAREHOLDERS" shall have the meaning set forth in the recitals
hereof.

            "KALI  SHAREHOLDERS' REP" means Mr. Subramanian or his executor,  as
the case may be.

            "KALI TRANSACTION COSTS" shall have the meaning set forth in Section
2.2(d)(v) hereof.

            "KALI'S  KNOWLEDGE"  or "TO THE  KNOWLEDGE  OF KALI"  means,  to the
extent that Kali  represents  and  warrants  itself to have  knowledge as to any
event,  fact,  condition or other matter set forth in this  Agreement,  the best
knowledge of any of the Kali Shareholders, including Mr. Subramanian as the sole
executive officer of Kali.

            "LAWS" shall have the meaning set forth in Section 3.11(a) hereof.

            "LEASED REAL  PROPERTY"  shall have the meaning set forth in Section
3.17(a) hereof.

            "LETTER AGREEMENT" means that certain letter agreement,  dated as of
January 20, 2004, by and among PRI, Kali, VGS, the Kali Shareholders and the VGS
Shareholders, which was subsequently revoked.

            "LIABILITIES" means any debts,  liabilities or obligations,  whether
absolute or contingent,  asserted or unasserted,  accrued or unaccrued, known or
unknown, due or to become due, or fixed or unfixed.

            "LIEN(S)" means any lien, pledge, hypothecation,  mortgage, security
interest,  claim, lease, charge,  option, right of first refusal or first offer,
easement,  servitude,  transfer  restriction,  voting  requirement  or any other

                                       7


encumbrance,  restriction  or limitation,  other than any purported  right(s) of
Perrigo under the Option Agreement and any Lien securing the PRI Loan.

            "LOSSES" shall have the meaning set forth in Section 7.1 hereof.

            "MARKET  PRICE  PAYMENT(S)"  shall  have the  meaning  set  forth in
Section 2.2(a)(iii)(B)(y) hereof.

            "MARKET  VALUE" means (i) the closing price of the PRI Common Stock,
as quoted on the New York Stock  Exchange (or, if  applicable,  the Nasdaq Stock
Market), for each trading day during any five (5) consecutive trading-day period
or (ii) the average of the closing prices of the PRI Common Stock,  as quoted on
the New York Stock  Exchange (or, if applicable,  the Nasdaq Stock Market),  for
any twenty (20) consecutive trading-day period.

            "MATERIAL  ADVERSE  EFFECT" means a material  adverse  effect on the
business, operations, assets or financial condition of Kali.

            "MR.  SUBRAMANIAN"  shall have the meaning set forth in the recitals
hereof.

            "MS.  SUBRAMANIAN"  shall have the meaning set forth in the recitals
hereof.

            "NDA"  means a new drug  application  filed  with,  and  seeking the
approval of any pharmaceutical product of, the FDA.

            "NEW  HIRES"  shall have the  meaning  set forth in  Section  3.9(n)
hereof.

            "NEW JERSEY CORPORATE TAX REIMBURSEMENT"  shall have the meaning set
forth in Section 2.5 hereof

            "NFA" shall have the meaning set forth in Section 6.13(b) hereof.

            "NJDEP" shall have the meaning set forth in Section 6.13(b) hereof.

            "NON-COMPETITION PERIOD" shall have the meaning set forth in Section
6.4(a)(i) hereof.

            "NON-SOLICITATION  PERIOD"  shall  have  the  meaning  set  forth in
Section 6.10 hereof.

            "OFF-SITE  LOCATION"  means any location other than (i) the Facility
or (ii) a location impacted by migration from the Facility.

            "OPTION AGREEMENT" means that certain Option Agreement, dated August
15, 2003, by and between Kali, VGS, the Kali Shareholders,  the VGS Shareholders
and Perrigo.

            "PAR" means PRI's wholly owned subsidiary, Par Pharmaceutical, Inc.

            "PARTY"  or  "PARTIES"  shall  have  the  meaning  set  forth in the
preamble hereof.

            "PAYEE" shall have the meaning set forth in Section 10.3(b) hereof.

                                       8


            "PAYOR" shall have the meaning set forth in Section 10.3(c) hereof.

            "PERCENTAGE  AMOUNT"  shall  have the  meaning  set forth in Section
10.3(a)(iv) hereof.

            "PERMITS"  means   licenses,   permits,   registrations,   consents,
authorizations and approvals of Governmental Authorities.

            "PERMITTED CAPITAL EXPENDITURES" shall have the meaning set forth in
Section 3.9(n) hereof.

            "PERMITTED  LIENS"  means (i) liens for Taxes  that are not yet due;
(ii) carriers', warehousemen's,  mechanics', materialmen's, repairmen's or other
like liens  arising in the ordinary  course of business,  payments in respect of
which are not yet due; and (iii) easements,  rights of way, zoning  restrictions
and other imperfections of title or similar matters that do not adversely affect
the  Improvements,  restrict  or  interfere  in any  material  respect  with the
ordinary conduct of the business of Kali (as presently conducted or as presently
contemplated to be conducted),  affect the condition or  transferability  of the
properties  or  assets  of Kali or grant to any  Person  any  option or right to
acquire, lease or occupy any portion of the Leased Real Property.

            "PERRIGO" means Perrigo Generics Company and any of its Affiliates.

            "PERRIGO OFFER" means that certain  letter,  dated January 28, 2004,
from Perrigo to Kali purporting to offer to purchase (via merger) Kali.

            "PERRIGO  WAIVER" shall have the meaning set forth in Section 6.3(a)
hereof.

            "PERSON" means a natural person,  partnership  (general or limited),
corporation,   joint  venture,   business  trust,   limited  liability  company,
cooperative,  association or other form of business organization (whether or not
regarded as a business entity under applicable Law), trust,  estate or any other
entity, other than a Governmental Authority.

            "PHARMACEUTICAL  PRODUCTS"  means all products  subject to the FDCA,
the CSA or to any similar state, local or foreign Law and to the jurisdiction of
the FDA,  the DEA or of any  analogous  state,  local or foreign  public  health
agency, board of health or similar Governmental  Authority that are or have been
manufactured,  developed,  researched,  tested, labeled, packaged,  distributed,
marketed or sold by Kali.

            "POST-EFFECTIVE  DATE VGS LOAN"  shall have the meaning set forth in
Section 2.2(d)(vi) hereof.

            "PRE-CLOSING TAX PERIOD" shall have the meaning set forth in Section
7.1 hereof.

            "PRE-OCCUPANCY  LOSSES"  shall have the meaning set forth in Section
11.2(a) hereof.

            "PRI" shall have the meaning set forth in the preamble hereof.

                                       9


            "PRI COMMON  STOCK"  means the common  stock of PRI, par value $0.01
per share.

            "PRI LOAN" means that certain  secured loan in the principal  amount
of $10,000,000 made by PRI to Kali on March 30, 2004.

            "PRODUCT  LIST" shall have the  meaning set forth in Section  6.4(a)
hereof.

            "PROPERTY(IES)" means real, personal or mixed property,  tangible or
intangible.

            "PROPOSED  DEFINITIVE PRODUCT LIST" shall have the meaning set forth
in Section 6.4(a)(ii) hereof.

            "PURCHASE  PRICE" shall have the meaning set forth in Section 2.2(a)
hereof.

            "REAL  PROPERTY  LEASES" shall have the meaning set forth in Section
3.17(b) hereof.

            "REDUCTION  AMOUNT"  shall  have the  meaning  set forth in  Section
2.2(d) hereof.

            "REMEDIATION  AGREEMENT" shall have the meaning set forth in Section
6.13(b) hereof.

            "SEC" means the U.S. Securities and Exchange Commission.

            "SECOND  ANDA  PAYMENT"  shall have the meaning set forth in Section
2.2(a)(ii) hereof.

            "SECOND ANDA THRESHOLD"  means the filing  (irrespective  of whether
accepted for filing by the FDA),  in good faith,  with the FDA by Kali,  PRI (or
any of its  affiliates)  or any Kali  Development  Partner,  in each case,  with
respect to a drug technology substantially developed by Kali, of at least twenty
(20) ANDAs  during  the period  from  January 1, 2004  through  the date that is
thirty (30) months from the Closing Date;  PROVIDED,  HOWEVER,  that if at least
seventeen (17) of such ANDAs have been filed with the FDA prior to the date that
is thirty (30) months from the Closing Date,  any new drug product that Kali has
completed,  or is actively conducting,  a Biostudy in respect thereof as of such
time shall  count as an ANDA  filed with the FDA if such new drug  product is in
fact later  filed with the FDA on or prior to the later of (i)  thirty-six  (36)
month-anniversary of the Closing Date or (ii) the Subramanian Termination Date.

            "SECOND LEVEL  GROSS-UP" shall have the meaning set forth in Section
2.5(c) hereof.

            "SECTION  338(H)(10)  ELECTION"  shall have the meaning set forth in
Section 7.3 hereof.

            "SECURITIES ACT" means the Securities Act of 1933, as amended.

            "SEPARATOR"  shall  have the  meaning  set forth in  Section  6.3(b)
hereof.

                                       10


            "SEPARATOR  EXPENSES" means reasonable  expenses incurred by Kali to
install the Separator.

            "STRADDLE  PERIOD"  shall have the  meaning set forth in Section 7.2
hereof.

            "SUBRAMANIAN EMPLOYMENT AGREEMENT" means the employment agreement to
be  entered  into  at the  Closing  by  and  between  Mr.  Subramanian  and  Par
substantially in the form of EXHIBIT A hereto.

            "SUBRAMANIAN  TERMINATION DATE" means the date of termination of Mr.
Subramanian's employment under the Subramanian Employment Agreement,  whether by
PRI, Par or Mr. Subramanian, or as a result of his death or disability.

            "TAX AUTHORITY"  shall have the meaning set forth in Section 3.13(b)
hereof.

            "TAXES"  (or "TAX" where the context  requires)  means all  Federal,
state,  county,  local,  foreign and other  taxes  (including  income,  profits,
premium, estimated, excise, sales, use, occupancy, gross receipts, franchise, ad
valorem, severance,  capital,  production,  transfer,  withholding,  employment,
unemployment  compensation,   payroll-related  and  property  taxes,  and  other
governmental  charges and  assessments),  whether or not measured in whole or in
part by net income, and including all deficiencies,  interest,  additions to tax
or interest, and penalties with respect thereto.

            "TAX  RETURNS"  means all written  returns,  declarations,  reports,
forms,  estimates,  information  returns and statements  filed in respect of any
Taxes and supplied to any Governmental  Authority in connection with or relating
to any Taxes.

            "TERMINATION  DATE" shall have the meaning set forth in Section 10.1
hereof.

            "TRANSFER  TAX  REIMBURSEMENT"  shall have the  meaning set forth in
Section 2.5(b) hereof.

            "TREASURY  REGULATIONS" means the rules and regulations  promulgated
by the U.S. Treasury Department under the Code.

            "U.S." means the United States of America.

            "VGS" shall have the meaning set forth in the preamble hereof.

            "VGS  NOTE"  shall  have the  meaning  set forth in  Section  2.5(d)
hereof.

            "VGS SHAREHOLDERS" means Mr. Subramanian and Ms. Subramanian.

            "WARRANT  AGREEMENT" means the warrant  agreement to be entered into
at the Closing by and between PRI and the Kali Shareholders substantially in the
form of EXHIBIT B hereto.

            "WARRANTS"  shall have the meaning  set forth in Section  2.2(a)(iv)
hereof.

                                       11



            1.2.  INTERPRETATIONS.
                  ----------------

            (a)   When  the  context in which  words are used in this  Agreement
indicates  that such is the  intent,  words  used in the  singular  shall have a
comparable meaning when used in the plural,  and vice versa;  pronouns stated in
the masculine, feminine or neuter shall include each other gender.

            (b)   Section and Schedule references are to this Agreement,  unless
otherwise specified.

            (c)   The  Section  headings  contained in this Agreement are solely
for the purpose of  reference,  are not part of the agreement of the Parties and
shall not in any way affect the meaning or interpretation of this Agreement.

            (d)   The  term  "including"  is not limiting and means  "including,
without limitation."

            (e)   Unless the context clearly requires otherwise,  the term "and"
is not limiting and means "and/or."

            (f)   In the computation of periods of time from a specified date to
a later specified  date, the word "from" means "from and  including";  the words
"to" and "until" each mean "to but excluding",  and the word "through" means "to
and including."

            (g)   Unless  otherwise expressly provided herein, (i) references to
agreements (including this Agreement) and other contractual instruments shall be
deemed to include all subsequent amendments and other modifications thereto, but
only to the extent such amendments and other modifications are not prohibited by
the terms of this  Agreement,  and (ii)  references to any statute or regulation
shall  be  construed  as  including  all  statutory  and  regulatory  provisions
amending, replacing, supplementing or interpreting such statute or regulation.

            (h)   This  Agreement and the other agreements  contemplated by this
Agreement  are the  result of  negotiations  among,  and have been  reviewed  by
counsel  to,  the  Parties  hereto  and are  the  products  of all the  Parties.
Accordingly, they shall not be construed against any Party hereto merely because
of the nature or extent of such Party's involvement in their preparation.

            (i)   "Dollars"  or "$" means the currency of the U.S.  that,  as at
the time of  payment,  is legal  tender for the  payment  of public and  private
debts.

            (j)   The words "hereto," "herewith,"  "hereof,"  "hereby," "herein"
and "hereunder" refer to this Agreement.


            2.    THE TERMS OF THE ACQUISITION.
                  ----------------------------


            2.1.  THE PURCHASE AND SALE OF THE KALI SHARES. Subject to the terms
and conditions of this  Agreement,  on the Closing Date,  each Kali  Shareholder


                                       12


shall sell, transfer, convey, assign and deliver to PRI, and PRI shall purchase,
acquire and accept from each Kali Shareholder,  all right, title and interest of
such Kali Shareholder, legal and equitable,  beneficial and of record, in and to
the number of Kali Shares set forth  opposite  such Kali  Shareholder's  name on
SCHEDULE 2.1 hereto under the caption  "Number of Shares  Owned." The originally
issued certificates evidencing the Kali Shares shall be delivered at the Closing
by the Kali  Shareholders to PRI, free and clear of all Liens and accompanied by
duly  executed  stock powers  (endorsed in blank) and with any  necessary  stock
transfer tax stamps affixed thereto.


            2.2.  PAYMENT  OF PURCHASE  PRICE;  ALLOCATION;  CASH PURCHASE PRICE
                  ADJUSTMENT.
                  --------------------------------------------------------------

            (a)   PURCHASE  PRICE. As full payment of the purchase price for all
of the Kali Shares (the "Purchase Price"), PRI shall:

                  (i)  pay  to  the  Kali  Shareholders  the  aggregate  sum  of
$129,447,000  in cash (the "Cash  Purchase  Price"),  subject to  adjustment  as
provided in Sections 2.2(d) and 2.4 hereof;

                  (ii)  pay to the Kali  Shareholders  $2,500,000  in cash  (the
"Initial  ANDA  Payment")  if,  following  the Closing,  Kali shall  achieve the
Initial ANDA Threshold and pay to the Kali Shareholders an additional $2,500,000
in cash (the "Second  ANDA  Payment")  if,  following  the  Closing,  Kali shall
achieve the Second ANDA Threshold;

                  (iii)  pay to the  Kali  Shareholders  up to an  aggregate  of
$5,000,000 as follows:

                  (A) (x)  $1,750,000 if, at any time following the Closing Date
and on or prior to the first  anniversary  thereof,  the Market  Value  shall be
equal to at least 110% of the Closing Price; plus

                      (y)  $750,000 if, at any time  following  the Closing Date
and on or prior to the first  anniversary  thereof,  the Market  Value  shall be
equal to at least 115% of the Closing Price; AND

                  (B) (x) $4,000,000 (less any payments made pursuant to clauses
(iii)(A)(x)  and (y) above) if, at any time  following the first  anniversary of
the  Closing  Date  and  prior to the last  day of the  thirtieth  (30th)  month
following the Closing Date,  the Market Value shall be equal to at least 120% of
the Closing Price; plus

                      (y)  $1,000,000  if,  at  any  time  following  the  first
anniversary  of the  Closing  Date and  prior  to the last day of the  thirtieth
(30th) month  following the Closing Date,  the Market Value shall be equal to at
least  133.3% of the  Closing  Price (each of the  payments  pursuant to clauses
(A)(x)  and  (y)  and  (B)(x)  and (y)  above,  a  "Market  Price  Payment"  and
collectively, the "Market Price Payments"); and

                  (iv)  execute and deliver  the Warrant  Agreement  to the Kali
Shareholders providing for the issuance of warrants (the "Warrants") to purchase
the  aggregate of 150,000  shares of PRI Common Stock,  at an exercise  price of
$57.92  per  share (as  adjusted  for any stock  dividend,  stock  distribution,
subdivision, stock split, reverse split, stock combination,  reclassification or
similar event occurring after the Effective Date, the "Closing Price").

                                       13


            (b)   ALLOCATION.  The Cash Purchase  Price, as such may be adjusted
pursuant  to Sections  2.2(d) and 2.4 hereof,  the  Warrants,  the Initial  ANDA
Payment (if any), the Second ANDA Payment (if any) and the Market Price Payments
(if any) shall be allocated among the Kali  Shareholders in the manner set forth
on SCHEDULE 2.2(B) hereto. Each of the Kali Shareholders hereby  unconditionally
acknowledges such allocation and agrees that it is fair and equitable.

            (c)   CASH PURCHASE PRICE. At the Closing,  the Cash Purchase Price,
as such may be adjusted pursuant to Section 2.4(a) hereof based on the Estimated
Closing  Certificate,  shall be paid by PRI via  wire  transfer  of  immediately
available  funds to accounts of the Kali  Shareholders  designated in writing by
the Kali Shareholders' Rep prior to the Closing.

            (d)   ADJUSTMENT  TO CASH PURCHASE PRICE.  Following the Closing and
in accordance with Section 2.4 hereof,  the Cash Purchase Price shall be reduced
based on the amount by which any of $6,790,000,  representing  the cash and cash
equivalents  of Kali as of December 31, 2003 (the  "Execution  Cash"),  has been
expended by Kali from  December  31, 2003 until the Closing  Date outside of the
ordinary  course of business (other than the  expenditures  described in clauses
(ii) through (ix) below).  The amount,  if any, by which the Cash Purchase Price
shall be reduced (the  "Reduction  Amount") shall be the amount  remaining after
subtracting from the Execution Cash the following amounts:

                  (i) all cash and cash  equivalents  of Kali as of the  Closing
            Date;

                  (ii) all expenditures  made from December 31, 2003 through the
            Closing Date by Kali in connection with the New Hires;

                  (iii) all expenditures made from December 31, 2003 through the
            Closing  Date by Kali  in  connection  with  the  Permitted  Capital
            Expenditures;

                  (iv) all expenditures  made from December 31, 2003 through the
            Closing  Date  by  Kali  in  connection  with  purchase  orders  for
            equipment in fiscal year 2003 but for which payment has not yet been
            made (which amount shall not exceed $500,000);

                  (v) all  reasonable  expenditures  made from December 31, 2003
            through the Closing Date by Kali to professional advisors (including
            attorneys,  accountants and  environmental  consultants)  engaged or
            retained by Kali and/or the Kali Shareholders in connection with (I)
            the  negotiation,  execution and delivery of this  Agreement and the
            other  agreements and documents  contemplated  hereby and the Letter
            Agreement or (II) compliance with the HSR Act, ISRA or any other Law
            pursuant to which Kali or any Kali Shareholder is required to obtain
            a waiver, consent, approval,  authorization or release in connection
            herewith,  up  to  $400,000  (collectively,  the  "Kali  Transaction
            Costs");

                                       14


                  (vi) the  provision of a loan by Kali to VGS, in the aggregate
            principal amount of $553,189 (the "Post-Effective Date VGS Loan");

                  (vii) the Separator Expenses;

                  (viii) the  purchase of certain  drugs from Barr  Laboratories
            for an estimated aggregate purchase price of $450,000,  the terms of
            which are being negotiated;

                  (ix) the  payment of unpaid  interest  on the  Perrigo  credit
            facility,  which  amount,  as of the  date of its  payment,  equaled
            $68,755.56; and

                  (x) all other expenditures made from December 31, 2003 through
            the  Closing  Date by Kali for  obligations  incurred by Kali in the
            ordinary course of business.

For the avoidance of doubt, the Reduction Amount, as determined above, shall not
be below zero and shall include and be increased by (i) the aggregate  amount of
any payments  made after  December 31, 2003 but prior to the Closing Date to the
Kali  Shareholders  on  account  of  their  respective  Accumulated  Adjustments
Accounts (the "AAA Payments"),  (ii) any payments made to any employees of Kali,
contingent on the Closing,  that are outside the ordinary  course of business of
Kali or pursuant to any agreement existing prior to the Effective Date (all such
payments to employees,  the "Closing Bonuses"),  (iii) all payments of rent (and
related amounts) since December 31, 2003 by Kali to VGS for the Facility and the
warehouse  owned by VGS and  located  in  Piscataway,  New  Jersey  and (iv) the
payment to the Kali  Shareholders of  distributions  to cover Tax liabilities in
the aggregate  amount of $90,000,  as set forth in Items 4-7 of Schedule  3.9(d)
hereto.  Subject to the  procedures  set forth in Section 2.4  hereof,  the Cash
Purchase Price shall be reduced $1.00 for each $1.00 of the Reduction Amount, as
increased above.

            (e)   ANDA PAYMENTS; MARKET PRICE PAYMENTS. The Initial ANDA Payment
shall be paid by wire transfer to the Kali Shareholders within ten (10) Business
Days of, and subject to, the  achievement  of the Initial  ANDA  Threshold.  The
Second  ANDA  Payment  (if  any)  shall  be paid by wire  transfer  to the  Kali
Shareholders  within ten (10) Business Days of, and subject to, the satisfaction
of the Second ANDA Threshold.  Any Market Price Payment(s) shall be paid by wire
transfer to the Kali Shareholders  within ten (10) Business Days of, and subject
to, the  achievement of the applicable  Market Value  condition(s)  set forth in
Section 2.2(a)(iv) hereof.  Notwithstanding  the foregoing,  neither the Initial
ANDA Payment nor the Second ANDA Payment nor any Market Price  Payments shall be
due and payable  if, at or prior to the time that the  applicable  condition  to
such payment shall have otherwise been achieved or satisfied,  a material breach
under Sections 6.4, 6.5, 6.9 or 6.10 hereof shall have occurred.

            (f)   RESERVATION OF RIGHTS. Subject to the limitations set forth in
Section 11 hereof,  PRI shall retain all rights and remedies with respect to any
breach(es)  of  any  representation(s)  and  warranty(ies)   contained  in  this
Agreement  by  the  Kali  Shareholders,  notwithstanding  the  existence  of any
reduction of the Cash Purchase Price effected in accordance with Sections 2.2(d)
and 2.4 hereof.

                                       15


            2.3.  CLOSING.
                  --------

            (a)   CLOSING DATE. The closing of the purchase and sale of the Kali
Shares (the "Closing") shall take place at the offices of Kirkpatrick & Lockhart
LLP, 599 Lexington Avenue, New York, New York 10022, and is expected to occur at
10:00 a.m., local time, as soon as is practicable after the satisfaction and, if
permitted, waiver of the conditions set forth in Sections 8 and 9 hereof and, in
no event later than two (2) Business Days after such satisfaction and waiver, or
at such other date,  time and place as the  Parties  shall  mutually  agree (the
"Closing Date").

            (b)   PRI'S  DELIVERY OF OTHER AGREEMENTS.  Subject to the terms and
conditions  hereof,  and in  addition  to the  deliveries  set forth in  Section
2.2(a)(i) hereof and provided for elsewhere  herein,  at the Closing,  PRI shall
duly execute and deliver the following documents:

                  (i) the Warrant Agreement;

                  (ii) the Subramanian Employment Agreement; and

                  (iii) a completed IRS Form 8023 (the  "Election  Under Section
338 for  Corporations  Making  Qualified Stock  Purchases")  duly executed by an
authorized  officer of PRI and  countersigned by each of the Kali  Shareholders,
whereby  PRI  elects  to  treat  the  purchase  of the Kali  Shares  as an asset
acquisition under Code Section 338(h)(10).

            (c)   THE KALI SHAREHOLDERS'  DELIVERIES OF OTHER AGREEMENTS.
Subject to the terms and  conditions  hereof,  and in addition to the deliveries
set forth in Section  2.1 hereof  and  provided  for  elsewhere  herein,  at the
Closing,  the Kali Shareholders  shall, as applicable,  duly execute and deliver
(i) the documents  set forth in Section  2.3(b) above and (ii)  certificates  of
Non-Foreign  Status  certifying that such  Shareholders  are not foreign Persons
subject to withholding  under Code Section 1445. In the case of the AS Trust and
the IS Trust,  the Form 8023 and  certificates  of  Non-Foreign  Status shall be
executed and delivered by Anu Subramanian and Ilango  Subramanian,  individually
as Shareholders,  in view of the fact that each of the AS Trust and the IS Trust
are grantor  trusts as to them for income tax  purposes.  The completed IRS Form
8023, duly executed by PRI and each of the Kali Shareholders,  shall be filed by
PRI with the IRS promptly after the Closing.


            2.4.  PURCHASE PRICE ADJUSTMENT.
                  --------------------------

            (a)   On or prior to the Closing  Date,  the Kali  Shareholders  and
Kali shall deliver to PRI a certificate of the Chief  Executive  Officer of Kali
(the "Estimated  Closing  Certificate")  accurately  reflecting (on an estimated
basis) all cash  expenditures and  distributions  made by Kali from December 31,
2003  through the Closing  Date and the  estimated  Reduction  Amount.  The Cash
Purchase  Price  payable at the  Closing  shall be reduced  in  accordance  with
Section 2.2(d)  hereof,  based on the estimated  determination  of the Reduction
Amount  prior to the  Closing,  and the  portion  of such  Cash  Purchase  Price
allocable  to each Kali  Shareholder  shall be so reduced as agreed  upon by the
Kali Shareholders.

            (b)   Within  sixty  (60) days  after the  Closing  Date,  PRI shall
deliver to the Kali  Shareholders'  Rep (i) a certificate of the Chief Financial
Officer  of  PRI  (the  "Closing  Certificate")  setting  forth  such  Officer's
determination  of the  Reduction  Amount  and (ii) a balance  sheet of Kali (the


                                       16


"Closing  Balance Sheet"),  which shall be audited by PRI's regular  independent
auditors and prepared in accordance with GAAP and shall fairly  present,  in all
material respects, the financial position of Kali as of the Closing Date.

            (c)   The Kali Shareholders' Rep shall have sixty (60) days from the
date on which the Closing  Certificate  shall have been  delivered by PRI to the
Kali Shareholders' Rep to raise any objection(s) to the Closing Certificate, but
only as it relates to the  determination of the Reduction Amount, by delivery of
written notice to PRI setting forth such  objection(s) in reasonable detail (the
"Disputed Items"). In the event that the Kali Shareholders' Rep shall fail to so
deliver such written objection(s) with respect to the Closing Certificate within
such sixty- (60) day period,  then the Closing Certificate shall be deemed final
for purposes of this Section 2.4. In the event that any such objection(s) are so
delivered,  the  Closing  Certificate  shall be deemed not final and PRI and the
Kali  Shareholders'  Rep shall attempt,  in good faith,  to resolve the Disputed
Items and,  if they are  unable to  resolve  all of the  Disputed  Items  within
fifteen (15)  Business Days of delivery of such notice,  shall,  within ten (10)
Business Days thereafter (or such earlier date as mutually agreed),  designate a
nationally recognized firm of independent public accountants, mutually agreeable
to PRI and the Kali  Shareholders'  Rep (the  "Accountant  Arbitrator").  In the
event  that  PRI and the  Kali  Shareholders'  Rep are  unable  to  agree on the
Accountant  Arbitrator within such ten- (10) Business Day period, the Accountant
Arbitrator shall be designated jointly by the independent accountants of PRI and
the Kali Shareholders' Rep (which may be Kali's former independent  accountants)
within ten (10)  Business  Days  thereafter.  The  Accountant  Arbitrator  shall
resolve all remaining  Disputed Items in accordance  herewith within twenty (20)
Business  Days  from  the  date  of its  designation.  In  connection  with  the
foregoing,  the Accountant  Arbitrator  shall be instructed  to, and shall,  (i)
limit  its  determination(s)  only  to the  remaining  Disputed  Items  and  the
determination of the Reduction Amount, (ii) make its determination(s) as to each
remaining  Disputed Item based upon Section 2.2(d) hereof and (iii) not assign a
value to any  remaining  Disputed  Item  greater  than the higher value for such
Disputed Item claimed by either PRI or the Kali  Shareholders'  Rep or less than
the lower  value  for such  Disputed  Item  claimed  by  either  PRI or the Kali
Shareholders'  Rep. All  determinations  by the Accountant  Arbitrator  shall be
final  and  binding  upon PRI and the Kali  Shareholders  for  purposes  of this
Section 2.4. The fees and expenses of the Accountant  Arbitrator  shall borne by
PRI unless the Accountant Arbitrator shall provide otherwise.

            (d)   At such time as the Closing  Certificate shall become final in
accordance with Section 2.4(c) hereof, the Cash Purchase Price shall be adjusted
in accordance  with Section 2.2(d) hereof based on the Closing  Certificate,  as
finally determined pursuant to Section 2.4(c) hereof. In the event that the Cash
Purchase Price paid at the Closing  pursuant to Sections  2.2(a)(i) hereof shall
be more than the Cash Purchase Price as determined and adjusted pursuant to this
Section 2.4(d), the amount of such excess (which under no circumstances shall be
greater than the Execution Cash amount (x) less the cash and cash equivalents of
Kali as of the Closing  Date  (which  amount may not be below zero) plus (y) the
amounts actually paid by Kali with respect to the items described in clauses (i)
through (iv) of the final  paragraph of Section  2.2(d) hereof) shall be paid to
PRI by the Kali  Shareholders.  Any payment to be made  pursuant to this Section
2.4(d)  shall be made,  within  five (5)  Business  Days  from the date that the
Closing  Certificate is finally determined pursuant to Section 2.4(c) hereof, by
the Kali  Shareholders to PRI via wire transfer of immediately  available funds,
to an account of PRI  designated in writing to the Kali  Shareholders'  Rep. Any
amount  determined to be due under this Section  2.4(d),  in accordance with the
procedures set forth in this Section 2.4, shall be subject to offset by the Kali


                                       17


Shareholders against any amounts owing to any Kali Shareholder under Section 2.5
hereof.


            2.5   SECTION  338  MAKE-WHOLE  AMOUNT.  (a) If,  as a result of the
making  of the  Section  338(h)(10)  Election  and the  allocation  of the  Cash
Purchase  Price among the assets of Kali in accordance  with Section 7.4 hereof,
Kali realizes  ordinary income (rather than capital gains) on the deemed sale of
its assets that, in turn, passes-through to the Kali Shareholders, PRI shall pay
to the Kali Shareholders' Rep, for the benefit of the Kali Shareholders' Rep, in
his  capacity as a Kali  Shareholder,  and for the other Kali  Shareholders,  an
additional  amount (the "Additional  Amount"),  which Additional Amount shall be
determined as follows:  (i) the Cash Purchase Price shall be allocated among the
assets of Kali as provided in Section 7.4 hereof;  (ii) the  independent  public
accountants of PRI shall determine the gain realized by Kali with respect to its
Classes of Assets (as set forth in IRS Form 8883);  and (iii) the amount of such
gains that are treated for tax purposes as ordinary gains shall be multiplied by
twenty (20%) percent.

            (b)   In addition, PRI shall provide the Kali Shareholders' Rep with
sufficient funds (the "New Jersey Corporate Tax Reimbursement"), so as to enable
the Kali  Shareholders,  on  behalf  of  Kali,  to pay any New  Jersey  Business
Corporation  Tax imposed upon Kali resulting from the deemed sales of its assets
upon the making of the Section 338(h)(10)  Election,  which New Jersey Corporate
Tax Reimbursement  shall be calculated and determined by the independent  public
accountants  of PRI. The Parties  hereby agree that, in  determining  the amount
realized for purposes of computing the New Jersey  Corporate Tax  Reimbursement,
each of the Initial ANDA  Payment,  the Second ANDA Payment and the Market Price
Payments shall be valued at zero. PRI shall also reimburse the Kali Shareholders
for all transfer, real property transfer, sales, stamp, registration and similar
Taxes and fees  that  would not have  been  incurred  but for the  making of the
Section 338(h)(10) Elections (the "Transfer Tax Reimbursement").  The Additional
Amount,  the  New  Jersey  Corporate  Tax  Reimbursement  and the  Transfer  Tax
Reimbursement are hereinafter collectively referred to as the "Gross-Up".

            (c)   PRI  shall  also  pay the Kali  Shareholders  an  amount  (the
"Second  Level  Gross-Up")  equal  to  twenty-five  (25%) of the  amount  of the
Gross-Up,  so as to make the Kali Shareholders  whole for any additional Federal
or New  Jersey  State  personal  income  taxes,  and to  reimburse  them for any
additional New Jersey Business Corporation Taxes,  resulting from the payment of
the Gross-Up. Both the Gross-Up and the Second Level Gross-Up shall be allocated
in accordance  with Section 7.4 hereof.  The Additional  Amount and the Transfer
Tax Reimbursement,  together with the Second Level Gross-Up  attributable to the
Additional Amount and the Transfer Tax Reimbursement, shall be payable by PRI to
the Kali Shareholders' Rep (on behalf of the Kali Shareholders)  within five (5)
Business Day following such time as the Closing  Certificate becomes final under
Section 2.4 hereof.  Although the  independent  public  accountants of PRI shall
calculate  the New Jersey  Corporate  Tax  Reimbursement  and the  Second  Level
Gross-Up  attributable thereto and present such calculations at such time as the
Closing  Certificate  becomes final in accordance  with Section 2.4 hereof,  PRI
shall not be required to pay to the Kali  Shareholders'  Rep, for the benefit of
the Kali  Shareholders'  Rep in his capacity as a Kali  Shareholder  and for the
other Kali  Shareholders,  the New Jersey  Corporate Tax  Reimbursement  and the
Second Level  Gross-Up  attributable  thereto until five (5) Business Days after
the Kali  Shareholders'  Rep has  presented to PRI a final New Jersey  corporate
income tax return for Kali,  as filed with the State of New Jersey,  showing the
payment  of all New  Jersey  corporate  income  taxes due for the  taxable  year

                                       18


commencing on January 1, 2004 through the Closing Date  (including the amount of
the New Jersey  Corporate  Tax  Reimbursement),  and has  provided PRI with such
additional  documentation,  as PRI  shall  reasonably  request,  evidencing  the
payment by Kali of all New Jersey  corporate  income  taxes due for such taxable
year.

            (d)   PRI  shall have the right to offset  against the amount of any
Gross-Up or Second Level Gross-Up  payable to the Kali  Shareholders  under this
Section 2.5 the then  outstanding  principal amount and accrued interest thereon
of that  certain  secured  Promissory  Note dated as of the  Closing  Date to be
issued by VGS to Kali in the initial  principal  amount of $2,688,189  (the "VGS
Note"),  a copy of which is  attached  hereto as Exhibit D, as evidence of VGS's
indebtedness to Kali as of the Closing. The Kali Shareholders hereby agree that,
to the extent that PRI  exercises,  in its sole and  absolute  discretion,  such
right of offset at such  time(s) as the amount of any  Gross-Up or Second  Level
Gross-Up  would  otherwise be payable  under this Section 2.5, such offset shall
constitute payment of the Gross-Up and the Second Level Gross-Up at such time(s)
to the extent thereof.


            3.  REPRESENTATIONS  AND WARRANTIES RELATING TO KALI.
                -------------------------------------------------
Kali and the Kali Shareholders hereby represent and warrant to PRI as follows:

            3.1   ORGANIZATION  AND  QUALIFICATION.  Kali is a corporation  duly
organized,  validly existing and in good standing under the laws of the State of
New  Jersey.  Kali has no  subsidiaries  and does not own or hold,  directly  or
indirectly,  any equity or economic  interest in any other Person.  Kali has the
power and authority to own,  lease and operate its assets and  properties and to
carry on its business as presently conducted. Kali is duly qualified to transact
business and is in good standing in each jurisdiction in which the nature of its
business and the location of its property  requires such  qualification,  except
where the failure to be so could not  reasonably  be expected to have a Material
Adverse Effect.  Kali is presently  qualified to do business in the jurisdiction
set forth on SCHEDULE 3.1 hereto.

            3.2   DUE  AUTHORIZATION;  ENFORCEABILITY.  Kali  has the  requisite
corporate  power and  authority  to execute and deliver this  Agreement  and the
other agreements  contemplated hereby to which it is (or will be) a party and to
consummate the transactions  contemplated hereby and thereby.  The execution and
delivery of this Agreement and the other agreements contemplated hereby to which
Kali  is (or  will  be) a party  and the  performance  and  consummation  of the
transactions  contemplated  hereby and thereby by Kali have been duly authorized
by all necessary  corporate  action on the part of Kali.  This Agreement and the
other agreements  contemplated hereby to which Kali is (or will be) a party have
been duly executed and delivered by Kali and, subject to the due  authorization,
execution and delivery of such  agreements by the other  parties  thereto,  this
Agreement and such other  agreements  contemplated  hereby  constitute  (or will
constitute  when executed  subsequent  to the Effective  Date) valid and binding
obligations  of  Kali,   enforceable  against  Kali  in  accordance  with  their
respective  terms,  except as such  enforcement  may be affected by  bankruptcy,
reorganization,  insolvency,  moratorium  or similar laws  affecting  creditor's
rights  generally and except for general  principles of equity (the  "Bankruptcy
and Equity Exception").

                                       19



            3.3   CAPITALIZATION; OPTIONS; SHAREHOLDER RIGHTS.
                  -------------------------------------------

            (a)   The authorized capital stock of Kali consists solely of 10,000
shares of common  stock,  no par value (the "Kali Common  Stock"),  of which 100
shares are designated as voting,  and 9,900 shares are designated as non-voting,
common stock.

            (b)   There  are,  and on the  Closing  Date there  will be,  10,000
shares of Kali Common Stock issued and outstanding,  and there are not, and will
not be on such  Date,  any  other  shares  of  capital  stock of Kali  issued or
outstanding.

            (c)   All of the issued and outstanding  shares of Kali Common Stock
have been duly authorized and are validly issued, fully paid and non-assessable.
All  outstanding  shares of Kali  Common  Stock are owned,  beneficially  and of
record,  in the  respective  amounts set forth opposite the names of the holders
thereof on SCHEDULE 3.3(c) hereto.

            (d)   Except as set forth on SCHEDULE 3.3(d) hereto,  there are, and
on the  Closing  Date  there  will  be,  no  outstanding  obligations,  options,
warrants,  convertible  or  exchangeable  securities,   subscriptions  or  other
commitments  or rights  (matured  or  contingent)  of any  nature to  acquire or
subscribe  for any shares of capital  stock or other  equity  interest  of or in
Kali.

            (e)   There  are,  and on the Closing  Date there will be, no bonds,
debentures,  notes or other  indebtedness  of Kali  having the right to vote (or
convertible into or exchangeable  for,  securities  having the right to vote) on
any matter on which the  shareholders  of Kali may vote.  Except as set forth on
SCHEDULE  3.3(e)  hereto,  there are,  and on the Closing Date there will be, no
preemptive rights,  rights of first refusal or first offer, change of control or
similar rights,  anti-dilution protections,  accelerated vesting rights or other
rights that any shareholder,  officer, employee or director of Kali or any other
Person would be entitled to exercise or invoke as a result of, or in  connection
with, the transactions contemplated hereby or otherwise.

            (f)   At the Closing,  PRI shall acquire,  and the Kali Shareholders
shall transfer and convey,  good and marketable  title to the Kali Shares,  free
and clear of all Liens.


            3.4   KALI  ORGANIZATIONAL  DOCUMENTS.  True and complete  copies of
Kali's  Certificate of Incorporation and By-laws,  as in effect on the Effective
Date (collectively, the "Kali Organizational Documents"), have been delivered to
PRI.  True and  complete  copies  of the  minute  books,  stock  books and stock
transfer  records of Kali shall be provided to PRI or its counsel on or prior to
the Closing,  in substantially the substance and form as they have been provided
to PRI and its counsel prior to the Effective Date.


            3.5   NON-CONTRAVENTION. Except as set forth on SCHEDULE 3.5 hereto,
the  execution  and  delivery  of  this  Agreement  and  the  other   agreements
contemplated  hereby  do not  (or  will  not  when  executed  subsequent  to the
Effective Date), and the  consummation of the transactions  contemplated  hereby
and thereby will not, (i) conflict with, or result in any violation or breach of
any provision of the Kali Organizational Documents, (ii) assuming receipt of the
Consents referred to in Section 3.6 hereof  (including the exceptions  therein),
conflict  with or  violate  any Law  applicable  to Kali or any of its assets or
operations  or any Permit  applicable to Kali or (iii)  assuming  receipt of the
Consents referred to in Section 3.6 hereof  (including the exceptions  therein),
result in (x) any violation or breach of,  constitute (with or without notice or


                                       20


lapse of time or both) a default under or conflict with (or give rise to a right
of  termination,   amendment,  cancellation  or  acceleration  of  any  material
obligation or loss of any benefit under) the  provisions of any lease,  contract
or  other  agreement  to  which  Kali is a party  or by  which  it or any of its
properties or assets is otherwise bound or (y) the imposition of any Lien on any
of the properties or assets of Kali.


            3.6   CONSENTS. Except for any filings (and the lapse of any waiting
period) under the HSR Act,  obtaining  ISRA  Clearance and any blue-sky or other
securities Law filings,  except as set forth on SCHEDULE 3.6 hereto, no consent,
approval or  authorization  of, or declaration or filing with, any  Governmental
Authority or Person (a  "Consent") is required on the part of Kali in connection
with  its  execution,   delivery  and  performance  of  this  Agreement  or  the
consummation of the  transactions  contemplated  hereby.  Except as set forth on
SCHEDULE  3.6,  there  are no  payments,  Liabilities  or  obligations  under or
pursuant to any Law or any contract or other  agreement to which Kali is a party
or is otherwise bound by that are required to be made,  incurred or performed by
Kali  (or its  successors)  arising  out of or as a result  of the  transactions
contemplated by this Agreement.


            3.7   FINANCIAL  STATEMENTS;  RECEIVABLES AND PAYABLES;  UNDISCLOSED
                  LIABILITIES.
                  --------------------------------------------------------------

            (a)   (x) The  unaudited  balance  sheets and related  statements of
income and retained  earnings,  shareholders'  equity and cash flows for Kali as
at, and for the fiscal  years ended on,  December  31, 2002 and 2001 and (y) the
audited  balance sheet and related  statements of income and retained  earnings,
shareholders'  equity and cash  flows for Kali as at,  and for the  fiscal  year
ended on, December 31, 2003  (collectively,  the "Kali  Financial  Statements"),
true and  complete  copies of which have been  previously  delivered to PRI, are
attached hereto as SCHEDULE 3.7(a).

            (b)   The Kali Financial Statements were prepared in accordance with
GAAP  consistently  applied (except that no footnotes have been prepared for the
unaudited financial  statements referred to in Section 3.7(a) hereof) during the
periods presented and fairly present,  in all material  respects,  the financial
position  of Kali and the  results of  operations  of Kali as at the  respective
dates shown and for the respective fiscal years covered thereby.

            (c)   All  accounts  and notes  receivable  reflected  on the latest
balance sheet  contained in the Kali Financial  Statements have arisen from BONA
FIDE  transactions  in the  ordinary  course of business  and are good and fully
collectible in the ordinary course of business at the aggregate recorded amounts
thereof,  net of any reserves in respect thereto set forth on the Kali Financial
Statements.  All accounts and notes receivable of Kali that arose after December
31, 2003 through the Effective Date and that will arise after the Effective Date
through  the  Closing  Date are the  result  of BONA  FIDE  transactions  in the
ordinary  course of business and are good and fully  collectible in the ordinary
course  of  business  at the  aggregate  recorded  amounts  thereof,  net of any
reserves in respect  thereto set forth,  consistent  with past practice,  on the
financial  books and  records of Kali.  There are no  recoupments,  set-offs  or
counterclaims in respect of any such receivables.  All accounts payable of Kali,
as reflected on the Kali  Financial  Statements  or arising  after  December 31,
2003,  are the  result  of BONA  FIDE  transactions  in the  ordinary  course of
business  consistent  with past  practice.  Kali has repaid in full that certain


                                       21


loan  in the  principal  amount  of  $10,000,000  previously  owed  to  Perrigo,
including all accrued and unpaid interest thereon.

            (d)   Kali  does  not  have  any  material  Liabilities,   including
guarantees or indemnities by Kali of the Liabilities of any other Person,  other
than (i)  Liabilities  as and to the extent  reflected  on the December 31, 2003
balance  sheet  of  Kali  contained  in  the  Kali  Financial  Statements;  (ii)
Liabilities  incurred  by Kali  since  December  31,  2003  (none  of which is a
material  Liability  for breach of contract  or  warranty,  tort,  infringement,
violation  of  Law,  claim  or  lawsuit)  in the  ordinary  course  of  business
consistent  with past practice and adequately  reflected on the financial  books
and records of Kali;  (iii)  obligations  of Kali under the express terms of any
existing  contracts  and  agreements;  and (iv) as set forth on SCHEDULE  3.7(d)
hereto.


            3.8   BOOKS AND RECORDS.  Kali has, and has maintained since January
1, 2002, Books and Records that, in reasonable  detail,  accurately  reflect the
transactions and business affairs of Kali in all material respects.


            3.9   ABSENCE OF CHANGES. Except as set forth on SCHEDULE 3.9 hereto
and for any AAA Payments made after the Effective Date,  since December 31, 2003
(or, in respect of clauses (d), (e) and (g) below,  since  September  30, 2003),
there has not been (except as expressly contemplated by this Agreement):

            (a)  any  material  adverse  change  in the  operations,  assets  or
financial condition of Kali;

            (b)   the  repayment  of any  indebtedness  or any  borrowing of (or
agreement to borrow) any money or any Liabilities  incurred by Kali,  other than
current liabilities incurred in the ordinary course of business;

            (c)   the  waiver of any valuable right of Kali or the  cancellation
or reduction of any material debt or claim held by Kali;

            (d)   any   declaration   or  payment  of  dividends  on,  or  other
distributions  (Tax-related  or  otherwise)  with  respect  to, or any direct or
indirect redemption or repurchase of, any shares of the capital stock of Kali;

            (e)   any disbursement, payment or transfer of assets or property by
Kali to any of its officers or directors or to any of the Kali  Shareholders  or
any family member,  Affiliate or Associate  thereof or related  Person  thereto,
other than ordinary  compensation paid to Mr. Subramanian or Ms. Subramanian and
BONA FIDE reimbursements in the ordinary course of business consistent with past
practice;

            (f)   the  issuance of any capital stock or other securities of Kali
or of any options,  warrants or rights or agreements or  commitments to purchase
or issue such securities;

            (g)   any mortgage, pledge, sale, assignment,  licensing or transfer
of any material tangible,  or of any intangible assets, of Kali, except sales of
tangible  assets  effected  in the  ordinary  course of  business to Persons not
related to Kali;

                                       22


            (h)   any loan or similar payment by Kali to any officer,  director,
employee  of Kali or to any  Kali  Shareholder  or any  Affiliate  or  Associate
thereof or the removal or  relocation of any material  tangible  assets from the
Facility;

            (i)   any  material  damage,  destruction  or loss  (whether  or not
covered by insurance)  adversely  affecting the assets,  property or business of
Kali;

            (j)   any material increase, direct or indirect, in the compensation
(or rate thereof) paid or payable to any officer, director, employee or agent of
Kali (it being agreed that any increase at the rate of $10,000 or more per annum
for such a Person  or at the rate of  $100,000  or more per  annum  for all such
Persons shall be deemed material, other than the Closing Bonuses);

            (k)   other than the Permitted Capital Expenditures, any purchase or
other  acquisition  of assets or property  other than in the ordinary  course of
business;

            (l)   any  significant  increase in the  disposition or write-off of
inventory not consistent with past practice;

            (m)   any significant change in the accounting methods,  principles
or practices followed or applied by Kali for book or Tax purposes;

            (n)   any  operation of the business of Kali outside of the ordinary
course of business or inconsistent with past practice, other than (i) payment of
the Closing Bonuses and the Post-Effective  Date VGS Loan, (ii) the hiring of up
to twenty (20) new,  unrelated  employees,  whose average annual salary does not
exceed  $45,000 (the "New  Hires"),  three (3) of whom have been hired as of the
Effective Date, (iii) capital  expenditures to purchase additional equipment for
the  business  of  Kali,  not  to  exceed  $750,000  (the   "Permitted   Capital
Expenditures"),  (iv) capital expenditure  expenses,  in the aggregate amount of
$500,000,  incurred  by Kali  prior to  December  31,  2003 in  connection  with
equipment  purchases  that had not been paid for by December 31,  2003,  (v) the
Separator Expenses,  (vi) subject to Section 2.2(d)(v) hereof, the incurrence of
professional expenses in connection with the proposed sale of Kali and (vii) the
additional items set forth on SCHEDULE 6.1(a); or

            (o)   any  commitment or agreement  (contingent  or otherwise) to do
any of the foregoing.


            3.10..PERMITS.  SCHEDULE  3.10 hereto sets forth a true and complete
list of all material Permits held by Kali that are required for the operation of
its business. Each of such material Permits is in full force and effect. None of
the  transactions  contemplated  hereby will cause, or result in, a termination,
limitation or suspension of any such material Permits.


            3.11. LEGAL COMPLIANCE. Except as set forth on SCHEDULE 3.11 hereto:

            (a)   Kali  and all of the  Pharmaceutical  Products,  including all
manufacturing,  warehousing, distributing and testing operations relating to the
Pharmaceutical  Products,  are (and  have  been) in the past  three (3) years in
compliance in all material respects with all applicable foreign,  Federal, state
and local statutes,  judgments,  decrees, laws, ordinances,  rules, regulations,


                                       23


injunctions and orders (collectively, "Laws") of Governmental Authorities (other
than  Environmental  Laws, which are covered by Section 3.14 hereof),  including
all applicable requirements of Current Good Manufacturing Practice Regulations.

            (b)   No  oral or written  communication  has been received by Kali,
and  no  investigation,   regulatory   enforcement  action  (including  seizure,
injunction,  civil  penalty  or  criminal  action) or any  related  Governmental
Authority  review is or, in respect of any  Pharmaceutical  Product,  was at any
time in the past  three  (3) years  pending  or, to the  knowledge  of Kali,  is
threatened  by any  Governmental  Authority  with  respect to (i) any alleged or
actual violation by Kali, or by any Pharmaceutical  Product,  of any Permit, Law
or other  requirement of any Governmental  Authority  relating to the operations
conducted  by Kali or (ii) any alleged or actual  failure to have or maintain in
effect all Permits required in connection with the operations conducted by Kali.

            (c)   Kali has not received within the past three (3) years from the
FDA, the DEA or any similar state, local or foreign  Governmental  Authority any
written  notice  (i)  regarding  the  approvability  or  approval  of any of the
Pharmaceutical Products (other than the written notices and other correspondence
of Kali as to which PRI was provided access,  and were reasonably  identified as
such, at the Facility and those  subsequently  provided to PRI),  (ii) regarding
the  labeling  of any of the  Pharmaceutical  Products  (other  than the written
notices and other  correspondence  of Kali as to which PRI was provided  access,
and were reasonably  identified as such, at the Facility and those  subsequently
provided to PRI) or (iii)  alleging any violation by Kali of any Law relating to
any of the Pharmaceutical Products.

            (d)   No  Pharmaceutical  Product has been  withdrawn,  suspended or
discontinued  by Kali as a  result  of any  action  by the  FDA,  the DEA or any
similar state, local or foreign Governmental Authority, either within or outside
the U.S. (whether voluntarily or otherwise), within the past three (3) years. No
proceeding within or outside the U.S. seeking the recall, withdrawal, suspension
or seizure of any of the Pharmaceutical Products is pending against Kali nor was
any such proceeding pending at any time during the past three (3) years.

            (e)   Each  of Kali's Drug Master Files  ("DMFs"),  as defined in 21
C.F.R.  Section  314.420,  in the possession of the FDA and each similar file in
the  possession  of any  state,  local  or  foreign  Governmental  Authority  is
complete,  accurate and up to date, in all material respects, and the subject of
each such DMF and  similar  file can be  effectively,  efficiently  and  legally
manufactured  or utilized in compliance  with the pertinent DMF or similar file.
Each Pharmaceutical Product manufactured and tested by Kali for use in a product
whose  regulatory   submission  references  a  DMF  or  similar  file  is  being
manufactured  and  tested  in  compliance  with  the  current  version  of  such
applicable file.

            (f)   No Pharmaceutical Product manufactured and distributed by Kali
has been (i)  adulterated  within the  meaning of 21 U.S.C.  Section 351 (or any
similar Law);  (ii) misbranded  within the meaning of 21 U.S.C.  Section 352 (or
any similar Law);  or (iii) a product in violation of 21 U.S.C.  Section 355 (or
any similar Law).

            (g)   Neither  Mr.  Subramanian  nor, to the knowledge of Kali,  any
other  officer,  employee  or agent of Kali has made any untrue  statement  of a
material  fact or a  fraudulent  statement  to the FDA,  the DEA or any  similar


                                       24


state, local or foreign Governmental Authority,  failed to disclose any material
fact required to be disclosed to the FDA, the DEA or any similar state, local or
foreign Governmental  Authority, or committed an act, made a statement or failed
to make a statement that, at the time such act,  statement or omission was made,
could  reasonably  be  expected  to provide a basis for the FDA,  the DEA or any
similar  state,  local or  foreign  Governmental  Authority  to invoke the FDA's
policy  respecting  "Fraud,  Untrue Statements of Material Facts,  Bribery,  and
Illegal  Gratuities" set forth in 56 Fed. Reg. 46191 (September 10, 1991) or any
similar policy,  nor has any director,  officer,  employee or agent of Kali been
convicted of any crime or engaged in any conduct for which debarment is mandated
by 21 U.S.C.  Section  335a(a) (or any similar Law) or  authorized  by 21 U.S.C.
Section 335a(b) (or any similar Law).

            (h)   Kali has not received any written notice within the past three
(3)  years  that  the  FDA,  the DEA or any  similar  state,  local  or  foreign
Governmental  Authority has commenced,  or overtly  threatened to initiate,  any
action to withdraw  its  approval,  registration  or  licensure  of any finished
Pharmaceutical  Product  manufactured  by  Kali  or  has  commenced  or,  to the
knowledge  of Kali,  threatened  to  initiate,  any  action  to seize or  enjoin
production of any Pharmaceutical Product.

            (i)   Kali is duly  authorized to sell the  Pharmaceutical  Products
sold by it in each of the  states  and  countries  in  which  Kali is  currently
selling   Pharmaceutical   Products.   To  the   extent   that  any   unapproved
Pharmaceutical  Product  is  intended  for  export  from  the  U.S.,  Kali is in
compliance,  in all material  respects,  with the applicable  requirements of 21
U.S.C. Sections 381(e) or 382, as applicable, and of the CSA.

            (j)   Kali has provided  access (and  reasonably  identified) to PRI
all  material   documents   in  its   possession   or  control  (i)   concerning
communications  to or from  the FDA,  the DEA and any  similar  state,  local or
foreign  Governmental  Authority with respect to any Pharmaceutical  Product; or
(ii)  prepared  by the FDA,  the DEA or any  similar  state,  local  or  foreign
Governmental  Authority with respect to a Pharmaceutical  Product,  in each case
that bears, in any material respect,  on compliance with the requirements of the
FDA, the DEA or of any similar state,  local or foreign  Governmental  Authority
regarding  any  Pharmaceutical  Product,  including  any  regulatory  inspection
observation,  deficiency letter,  warning letter,  non-approvable  letter/order,
withdrawal  letter/order,  objection  to  Pharmaceutical  Product  promotion  or
similar document.


            3.12. EMPLOYEES AND EMPLOYEE BENEFIT PLANS AND ARRANGEMENTS.
                  -----------------------------------------------------

            (a)   SCHEDULE 3.12(a) hereto sets forth a true and complete list of
all current  employees of Kali, which list will be promptly updated prior to the
Closing to include the New Hires and any other employees  permitted hereby to be
hired by Kali after the Effective Date and before the Closing (collectively, the
"Kali  Employees"),  and their respective  positions,  dates of hire and current
rates of compensation.  Each Kali Employee who is not a U.S. citizen is, and has
been during his/her employment with Kali, legally authorized to work in the U.S.
for Kali,  has had all  documentation  required for such  non-U.S.  citizen Kali
Employee to work in the U.S.  for Kali  completed  and is available as required,
and all such non-U.S.  citizen  employees  have worked,  and through the Closing


                                       25


Date will work, in  compliance,  in all material  respects,  with all applicable
Laws.

            (b)   SCHEDULE 3.12(b) hereto sets forth a true and complete list of
(i) each employment  agreement or contract,  individually or collectively,  with
Kali  Employees  and (ii) the name of each Kali  Employee  that Kali has entered
into an  agreement  or  contract  with  providing  for  retention  or  severance
payments.  No union  or  other  collective  bargaining  representative  has been
certified or recognized by Kali as  representing  any of the Kali  Employees and
none of the Kali Employees  participates  in or contributes to (or been required
to  participate  or contribute to) or incurred any liability with respect to any
"multiemployer" plan (within the meaning of Section 3(37) of ERISA). There is no
existing  or,  to the  knowledge  of  Kali,  any  threatened  strike,  slowdown,
picketing, work stoppage or material employee grievance process.

            (c)   SCHEDULE 3.12(c) hereto sets forth a true and complete list of
each pension, profit-sharing, bonus, vacation, life, health, incentive, welfare,
severance,  equity,  stock option,  stock award or phantom  stock plan,  retiree
medical or other  employee  benefit  plan,  program or  arrangement  maintained,
sponsored or contributed to by Kali or any of its Affiliates (or to which any of
them have an obligation to maintain,  sponsor or contribute to) that benefit any
Kali Employee or former  employee,  shareholder,  director or consultant of Kali
(such plans, programs and arrangements and related trusts, insurance and annuity
contracts,  funding media, and related  agreements and arrangements  hereinafter
referred to,  collectively,  as the "Kali Benefit Plans").  For purposes of this
Section,  any reference to the term "Kali and its Affiliates" shall be deemed to
refer also to any Person that is under common control or affiliated with Kali or
any of its  Affiliates  within  the  meaning  of  Section  4001 of ERISA and the
Regulations  thereunder and Code Sections 414(b),  (c), (m) or (o) and the rules
and  regulations  promulgated  thereunder.  Kali has  furnished  to PRI true and
complete  copies of all material  documents  relating to the Kali Benefit Plans,
including each plan document (as amended),  trust or funding agreement,  summary
plan description,  employee  communications,  any annual reports  (including all
schedules or accounts opinions), actuarial reports and financial statements with
respect to such Kali Benefit Plans for all periods during the last two years.

            (d)   All Kali Benefit Plans in which the Kali Employees participate
comply in all material  respects with ERISA,  the Code and all other  applicable
Laws and with the terms  thereof.  Each  fiduciary as to a Kali Benefit Plan has
complied, in all material respects,  with all applicable Laws in respect of each
such  Plan.  Each  Kali  Benefit  Plan has at all  times  been  administered  in
accordance with its terms.

            (e)   All required employer contributions,  premiums and Taxes under
or with respect to the Kali Benefit  Plans due to be made or paid have been made
or paid, and the  respective  fund or funds  established  under the Kali Benefit
Plans have been funded in accordance with all applicable Laws.

            (f)   Other  than claims in the ordinary  course for  benefits  with
respect to the Kali Benefit Plans,  there are no actions,  suits,  grievances or
material  claims pending against or with respect to any Kali Benefit Plan or, to
the knowledge of Kali, any  circumstances  that could  reasonably be expected to
give rise to any such action, suit, grievance or claim.

                                       26


            (g)   Each  of the Kali  Benefit  Plans that is intended to meet the
requirements of Code Section 401(a), now meets, and since its inception has met,
the  requirements  for  qualification  under Code Section 401(a) and nothing has
occurred  that  would  adversely  affect the  qualified  status of any such Kali
Benefit  Plan.  The  Internal  Revenue  Service  ("IRS")  has issued a favorable
determination  letter with respect to the  qualification  under the Code of each
such Plan. Kali does not maintain or contribute to, and has never  maintained or
been obligated to contribute to, a defined  benefit plan or a multiple  employer
welfare  arrangement  (as those  terms are defined in ERISA  Sections  3(35) and
3(40)) or a plan or program that is subject to Code  Sections 412 or  501(c)(9).
Except  with  respect to any  contribution  that has accrued but is not yet due,
Kali does not have any Liability  (direct or indirect)  with respect to any Kali
Benefit Plan and each Kali Benefit  Plan may be amended or  terminated,  without
limitation.


            3.13. TAX  MATTERS.  (a) Kali has (i) properly  completed and timely
filed all Tax  Returns  required  to be filed by it and all such Tax Returns are
true and complete and (ii) duly paid in full all Taxes that were due and payable
for all periods ending on or before the Effective  Date.  Kali maintains and has
maintained  adequate accruals,  as reflected in its financial books and records,
for all Taxes accrued but not yet due. Kali has no material Liability for unpaid
Taxes accruing after December 31, 2003.

            (b)   There  is no (i)  material  claim  for  Taxes  that  is a Lien
against  any of the  properties  or  assets  of Kali or that is  being  asserted
against  Kali other than liens for Taxes not yet due and  payable;  (ii)  audit,
administrative  proceeding or court  proceeding with respect to any Taxes or Tax
Returns  of Kali  that is being  conducted  or is  pending  and no  Governmental
Authority that is responsible for the imposition of any Tax (a "Tax  Authority")
has asserted against Kali any deficiency or claim for Taxes;  (iii) extension of
the  statute  of  limitations  on the  assessment  of any Taxes  granted by Kali
currently in effect; or (iv) agreement, contract or arrangement to which Kali is
a party  that  may  result  in the  payment  of any  amount  that  would  not be
deductible by reason of Code Section 162(m), 280G or 404.

            (c)   No  claim or  notice  has been  submitted  or given by any Tax
Authority in a  jurisdiction  where Kali has not filed Tax Returns that it is or
may be subject to taxation by that jurisdiction.

            (d)   Within the past five (5) years, Kali has not filed or made any
material Tax  election or has changed its overall  method of  accounting  or its
methods of accounting  with respect to specific  items of income and  deduction,
including the determination of its cost of goods sold, for Tax purposes.

            (e)   Kali  is not a party to any Tax sharing,  Tax indemnity or Tax
allocation  agreement,  and  Kali  does  not have  any  Liability  or  potential
Liability to another Person under any such  agreement,  and has not incurred any
Liability for the Taxes of any Person under Treasury Regulation Section 1.1502-6
(or any similar  provision of state,  local or foreign  Law), as a transferee or
successor, by contract or otherwise.

            (f)   Kali  has  withheld  and paid all Taxes  required to have been
withheld  and  paid in  connection  with  amounts  paid or  owing  to any of its
employees, independent contractors, creditors, shareholders or other Persons.

                                       27


            (g)   No  power of attorney has been granted by Kali with respect to
any matters relating to Taxes that is currently in effect.

            (h)   Kali  has not settled any claim,  audit or  administrative  or
court proceeding with respect to any Taxes.

            (i)   Kali has not filed any  disclosure  under Code Section 6662 or
any analogous provision of state, local or foreign Law to prevent the imposition
of penalties with respect to any Tax reporting position taken on any Tax Return.

            (j)   Kali  is not nor has it ever been a member of a  consolidated,
combined or unitary group of which Kali was not the ultimate parent corporation.

            (k)   Kali is not nor has it ever been a "personal  holding company"
within the meaning of Code Section 542.

            (l)   Since  its  inception,  Kali has qualified as an S corporation
within the  meaning  of, and has made a proper and timely  election  to be taxed
under, Code Sections 1361 and 1362 and, where applicable,  comparable  elections
for state and local income tax  purposes.  Kali will continue to qualify as an S
corporation  from the Effective  Date through the Closing Date and shall take no
actions,  and shall cause its shareholders to take no actions,  that would cause
it to fail to qualify as an S corporation  for Federal  income Tax purposes and,
where  applicable,  for state and  local  income  Tax  purposes,  including  the
revocation or  termination of its elections to be treated as an S corporation or
the  transfer  of  any  of its  shares  to a  Person  that  is  not an  eligible
shareholder under Code Section 1361.


            3.14. ENVIRONMENTAL MATTERS.
                  ---------------------

            (a)   Except as set forth on SCHEDULE 3.14(a) hereto: (i) Kali is in
compliance  with all  applicable  Environmental  Laws and all Permits  issued in
connection  therewith;  and (ii) Kali has not  received  any notice  alleging or
investigating any pending and unresolved  violation by Kali of any Environmental
Law.

            (b)   Except  as, and only to the  extent,  authorized  by any valid
Permit  issued  pursuant to an  Environmental  Law,  there has been no Hazardous
Substances  disposed of, discharged or released by Kali or VGS or, to the actual
knowledge of Kali,  by any other Person prior to the Closing on, into or beneath
the Facility or migrating from the Facility.

            (c)   Neither  Kali nor VGS has disposed of,  discharged or released
any  Hazardous  Substances  on, at or beneath any  Off-site  Location or, to the
actual  knowledge of Kali,  has any other  Person  disposed  of,  discharged  or
released  Hazardous  Substances  on, at or beneath  any  Off-site  Location,  or
migrating from any Off-site Location,  in each case, in a manner that would give
rise to any Liabilities under any Environmental  Law,  including at any Off-Site
Location, against Kali or VGS.

            (d)   Except as set forth on SCHEDULE  3.14(d) hereto,  neither Kali
nor VGS has treated, stored, disposed of, arranged for or permitted the disposal
of,  transported,  handled or released any  substance,  including  any Hazardous
Substance,  or owned  or  operated  any  property  or  facility,  including  the

                                       28


Facility,  in a  manner  that  has  given  or  reasonably  could  give  rise  to
Environmental Claims against VGS or Kali (or their successors).

            (e)   Except as set forth on SCHEDULE  3.14(e) hereto,  neither Kali
nor VGS has received any oral or written notice, order or other information from
any Governmental Authority or Person advising Kali or VGS that it is responsible
for  any  Environmental  Claims  or  is  a  potentially  responsible  party  for
remediation  or for  paying  the cost of  investigation  or  remediation  of any
Hazardous  Substance  at any  Off-site  Location,  and  neither VGS nor Kali has
entered into any  agreement  pertaining  thereto.  No Liens have arisen under or
pursuant to any  Environmental  Law on any site or facility  owned,  operated or
leased by Kali during  Kali's  occupancy  of such site or  facility  and, to the
actual  knowledge of Kali, no action (i) has been taken during Kali's  occupancy
of such  site or  facility  or (ii) is in the  process  of  being  taken  by any
Governmental  Authority  that could  subject  any such site or  facility to such
Liens,  and Kali is not required to place any notice or restriction  relating to
the presence of Hazardous Substances at any such site or facility in any deed or
contract or other agreement  relating to the real property on which such site or
facility is located.

            (f)   Except  as  set  forth  on  SCHEDULE  3.14(f)  hereto,  to the
knowledge of Kali, the Facility does not contain any underground  storage tanks,
underground  injection wells,  septic tanks in which process water or wastewater
has been  disposed or any  equipment  using PCBs and no such tanks or wells have
been  abandoned  in place or removed  during  Kali's  occupancy  of such site or
facility, except in compliance with Environmental Laws.

            (g)   Kali  has  delivered  to PRI true and  complete  copies of all
material environmental studies, analyses or reports in the possession or control
of Kali relating to the Facility and its business.  SCHEDULE 3.14(g) hereto sets
forth a true and complete list of all environmental-related Permits held by Kali
or any Affiliates.

            (h) The Facility constitutes an Industrial Establishment, as defined
under the New Jersey  Industrial  Site  Recovery Act,  N.J.S.A.  13K:1-6 ET SEQ.
("ISRA").

            3.15. LITIGATION;  CLAIMS.  Except  as set  forth on  SCHEDULE  3.15
hereto,  there are no suits or  actions,  administrative,  arbitration  or other
proceedings,  or  governmental  investigations  pending or, to the  knowledge of
Kali,  threatened  against or affecting Kali or any of its properties or assets.
No Person has in the past three (3) years  notified  Kali of any material  claim
against Kali alleging any personal  property or economic injury,  loss or damage
incurred  as a result of or relating  to the use of any  products  sold by or on
behalf  of,  or  services  rendered  by,  Kali.  There  is no  judgment,  order,
injunction, decree, writ or award against Kali that is not satisfied and remains
outstanding,  except in respect of the  Paragraph  IV  Litigations  set forth on
SCHEDULE 3.15 that may be entered or made after the Effective  Date and prior to
the Closing Date.


            3.16. MATERIAL AGREEMENTS.
                  -------------------

            (a)   SCHEDULE 3.16(a) hereto sets forth a true and complete list of
each contract or other  agreement to which Kali is a party or by or to which any
property of Kali is otherwise  bound or subject that:  (i) requires  payments or
performance  during its term involving an amount in excess of $50,000;  (ii) has


                                       29


not been  made in the  ordinary  course  of  business;  (iii) is an  employment,
consulting,   non-competition,   indemnification   (other  than  indemnification
provisions contained in licenses, leases and other contracts entered into in the
ordinary  course of business) or  contribution  agreement;  (iv) is a franchise,
distributorship,  manufacturing,  licensing, development, supply or sales agency
agreement  (whether or not  exclusive);  (v) is an agreement  providing  for the
sale,  acquisition  or lease  of any of the  properties  of Kali  having a value
greater than $50,000  other than in the ordinary  course of business;  (vi) is a
mortgage,  pledge, security agreement or other similar agreement with respect to
any of the tangible or intangible  property of Kali;  (vii) is a loan agreement,
credit  agreement,  promissory  note,  guaranty,  letter of  credit  or  similar
agreement;   (viii)  is  a  retainer  agreement  with  attorneys,   accountants,
investment bankers or other professional advisers; (ix) is an agreement with any
Governmental Authority; (x) is an agreement (other than standard confidentiality
or non-disclosure  agreements or customer contracts) relating to any of the Kali
Intellectual  Property Rights;  (xi) is an agreement referred to in Section 3.24
hereof; (xii) is an agreement otherwise material to the operations,  business or
financial  condition of Kali; (xiii) is an agreement  providing for the purchase
of any of the capital stock or material assets of any other Person;  or (xiv) is
a  binding   commitment  or  agreement  to  enter  into  any  of  the  foregoing
(collectively,  the "Kali Material Agreements"). True and complete copies of all
Kali Material Agreements have been previously delivered to PRI.

            (b)   Except as set forth on SCHEDULE  3.16(b)  hereto,  each of the
Kali  Material  Agreements is valid,  binding and in full force and effect,  and
enforceable  by Kali, in accordance  with its  respective  terms (subject to the
Bankruptcy and Equity Exception). No Person (other than Kali) that is a party to
any Kali Material  Agreement or is otherwise  bound thereby is, to the knowledge
of Kali,  in default  or breach  thereof  and,  to Kali's  knowledge,  no event,
condition or act exists that,  with the giving of notice or the lapse of time or
both,  would  give  rise to such a  default  or  breach  thereof  or a right  of
cancellation by Kali thereunder.  Except as set forth on SCHEDULE 3.16(b),  Kali
is not in default or breach of any of the Kali Material Agreements and no event,
condition or act exists that,  with the giving of notice or the lapse of time or
both,  would  give rise to a default  or  breach by Kali  thereof  or a right of
cancellation  thereunder  by any  other  party  thereto.  Except as set forth on
SCHEDULE 3.16(b),  no Consent of any Person is necessary in order to transfer to
PRI at the Closing all rights and  interests of Kali in and to the Kali Material
Agreements.  Kali is not in default or breach of any of its  contracts  or other
agreements  (including  the Kali  Material  Agreements),  except  where all such
breaches or defaults could not reasonably be expected to have a Material Adverse
Effect.

            3.17. REAL ESTATE.
                  -----------

            (a)   SCHEDULE  3.17(a)  hereto sets forth a true and complete  list
and an accurate  summary  description  of all real property  leased by Kali (the
"Leased Real Property).  Other than the Leased Real Property,  Kali does not own
or lease, and has never owned or leased, any real property.  Except as set forth
on SCHEDULE 3.17(a), no portion of any of the Leased Real Property is located in
a flood plain,  flood hazard area or designated  wetlands area. To the knowledge
of Kali,  there is no uninsured  physical  damage to any Leased Real Property in
excess of $50,000.

            (b)   SCHEDULE  3.17(b) hereto  contains a true and complete list of
all real property  leases  (including all amendments  and  supplements  thereto)
pursuant  to which Kali  leases any Leased  Real  Property  (the "Real  Property
Leases").  Kali has good and valid interest in, and right to quiet enjoyment of,


                                       30


the leasehold estates leased to it under each of the Real Property Leases,  free
and clear of all Liens, rights of occupancy or use for all or any portion of the
Leased  Real  Property,   options,   covenants,   conditions,   rights  of  way,
encroachments  (onto or by  improvements  on such Leased Real  Property) and any
other matters affecting title,  other than Permitted Liens. With respect to each
Real Property Lease where Kali is the lessee or sublessee,  Kali is in exclusive
possession of the property  described  under such Lease.  Kali is not in default
under any such Real Property  Lease. To the knowledge of Kali, Kali does not owe
any brokerage or leasing commission in respect of any Real Property Lease.

            (c)   Except  as  set  forth  on  SCHEDULE   3.17(c)   hereto,   all
certificates of occupancy (continued or other),  variances,  special use permits
and other Permits required for the occupancy and use of the Leased Real Property
and the  operation  of Kali's  business  thereon (as  presently  conducted  as a
pharmaceutical  manufacturer  or  otherwise)  have been obtained and are in full
force  and  effect,  and  no  other  Permits,   Consents  or  variances  of  any
Governmental Authorities (whether Federal, state or local) are required for such
use, occupancy and operation thereof,  and no certificates of the local board of
fire underwriters (or other body exercising  similar functions) have been issued
or are required for any buildings or structures comprising the improvements with
respect to the Leased Real Property (the "Improvements").

            (d)   Except as set forth on SCHEDULE  3.17(d) hereto,  Kali has not
received  any  written  notice  from any  Federal,  state or local  Governmental
Authority or board of fire  underwriters  (or any other body exercising  similar
functions) that the conditions,  continued maintenance,  operation or use of any
and all Improvements  (for their current or any contemplated  purpose)  violates
any zoning, safety, fire, seismic design, conservation,  parking,  architectural
barriers to the handicapped,  building or similar Law. Kali has not received any
written or oral notice from any Governmental or quasi-Governmental  Authority or
board of fire underwriters (or any other body exercising similar functions) with
respect to any portion of the Leased Real Property or any  Improvements  thereon
that (i) claims any material  defect or material  deficiency with respect to any
of the Leased Real  Property  or any  Improvements  thereon or (ii)  requires or
requests the performance of any material  repairs,  alterations or other work to
or in respect of any of the Leased Real Property.

            (e)   To the  knowledge  of Kali,  (i) no portion of the Leased Real
Property is subject to or affected  by any  special  assessment,  whether or not
there is presently a Lien thereon,  and (ii) no such assessment has been pending
or threatened.

            (f)   To the  knowledge of Kali,  there is no planned or  threatened
taking,  condemnation or expropriation proceeding for any public or quasi-public
purpose or use by a  Governmental  or  quasi-Governmental  Authority,  or by any
right of eminent domain, of all or any portion of the Leased Real Property.

            (g)   All public utilities  (including water, gas,  electric,  storm
and  sanitary  sewage,  and  telephone  utilities)  required  to operate  Kali's
business on the Leased Real  Property  (as  presently  conducted or as presently
contemplated  to be  conducted)  are  reasonably  available  to such Leased Real
Property,  and, to the knowledge of Kali, such utilities enter the boundaries of
such Leased  Real  Property  through  adjoining  public  streets,  easements  or
rights-of-way  of  record  in favor  of  Kali.  Such  public  utilities  are all
connected in accordance  with valid  Permits,  are all in  satisfactory  working

                                       31


order and repair and are reasonably adequate to service the operations of Kali's
business on the Leased  Real  Property as  currently  conducted  and permit full
compliance  with all  requirements  of applicable Law. Kali has not received any
written notice of any proposed,  planned or actual curtailment of service of any
utility  supplied to any portion of the Leased Real  Property.  Each Leased Real
Property is an independent unit that does not rely on any facilities  located on
any property not  included in such Leased Real  Property or any adjacent  Leased
Real  Property  to fulfill any  applicable  Laws or for the  furnishing  to such
Leased Real Property of any essential building systems or utilities,  other than
facilities  provided to such Leased Real Property  pursuant to one or more valid
easements.

            (h)   Kali has provided PRI with true and complete  copies of all of
the following  documents in Kali's  possession or control:  (i) title  insurance
policies, title insurance commitments,  mortgages, deeds, restrictive covenants,
easements and other recorded  agreements,  surveys,  certificates  of occupancy,
other  certificates,   permits,  licenses  and  approvals,  as-built  plans  and
specifications,  architectural  agreements and other  documents and  instruments
pertaining  to the  Leased  Real  Property  and (ii) the Real  Property  Leases,
including  all  amendments,   extensions  and  modifications  thereto,  and  all
subordination, non-disturbance and attornment agreements, guarantees and similar
agreements relating to any of the Real Property Leases.

            (i)   The  Leased  Real  Property  and  the use  thereof  by Kali in
connection  with  the  conduct  of the Kali  Business  comply,  in all  material
respects, with all covenants, easements and restrictions of record affecting the
Leased Real Property.


            3.18. INTELLECTUAL PROPERTY.
                  ---------------------

            (a)   SCHEDULE  3.18(a)  hereto sets forth a true and complete  list
(or description) of all material Intellectual Property Rights owned, licensed or
used in connection with the businesses of Kali,  other than  "off-the-shelf"  or
standard software products (the "Kali Intellectual  Property Rights").  The Kali
Intellectual  Property Rights include all material  Intellectual Property Rights
in, to and  under  which  Kali has any  right,  title or  interest,  whether  by
ownership  or  license or  otherwise,  other than  "off-the-shelf"  or  standard
software products.

            (b)   None  of the Kali  Shareholders  nor any officer,  director or
employee of Kali,  or any of their  respective  Affiliates  (other than Kali) or
Associates  (other than Kali),  has any ownership,  royalty or other right to or
interest in any of the Kali Intellectual Property Rights.

            (c)   Except  as set  forth on  SCHEDULE  3.18(c)  hereto,  Kali has
either good title to, or valid and enforceable rights under contract to use, all
of the  Intellectual  Property Rights material to, or necessary to conduct,  the
Kali Business as it is presently  conducted,  free and clear of all Liens. There
are no material  restrictions on the direct or indirect transfer of any contract
or other agreement,  or any interest therein,  held by Kali in respect of any of
the Intellectual Property Rights owned by Kali. Kali is not in default (or, with
the giving of notice or lapse of time or both,  would be in  default)  under any
contract  or other  agreement  to use any of the  Intellectual  Property  Rights
required  to be set forth on  SCHEDULE  3.18(a)  hereto.  Except as set forth on
SCHEDULE  3.18(c),  (i) to the actual  knowledge  of Kali,  without  independent
investigation,  none of the know-how,  unpatented  inventions,  trade secrets or
rights  in  processes,  formulas  or  methods  comprising  a part  of  the  Kali


                                       32


Intellectual  Property  Rights,  and (ii)  none of the other  Kali  Intellectual
Property  Rights of Kali,  infringes or conflicts with, and neither Kali nor any
of the Kali Shareholders has received any notice of infringement of, or conflict
with,  any  license,  patent,  copyright,   trademark,  service  mark  or  other
intellectual  property  right of any other Person and, to the knowledge of Kali,
there is no infringement  or  unauthorized  use by any Person of any of the Kali
Intellectual  Property  Rights.  Except as set forth on  SCHEDULE  3.18(c),  the
validity or enforceability of any of the Kali Intellectual Property Rights owned
by Kali or the title of Kali thereto has not been  questioned in any litigation,
governmental  inquiry  or  proceeding  to  which  Kali  is a party  and,  to the
knowledge of Kali,  no such  litigation,  governmental  inquiry or proceeding is
threatened.

            (d)   SCHEDULE 3.18(d) hereto sets forth a true and complete list of
all of the patents and patent  applications  owned,  individually or jointly, by
Kali. Each such patent is valid and enforceable. Kali has complied with its duty
of disclosure to the U.S.  Patent and Trademark  Office  regarding  each of such
patents.

            (e)   Kali has taken all reasonable actions necessary or appropriate
to preserve the  confidentiality  of all trade  secrets,  proprietary  and other
confidential information material to the business and operations of Kali.

            3.19. DOMAIN  NAMES.  SCHEDULE  3.19  hereto  sets  forth a true and
complete  list of all domain  names  owned or used by Kali in the conduct of its
business. None of the Kali Shareholders and no officer,  director or employee of
Kali or any of their respective family members, Affiliates or Associates has any
ownership  or other  interest  in the domain  names.  None of the  domain  names
infringes or conflicts with any trademarks, trademark rights, trade names, trade
name rights,  service marks or other rights of any Person. Kali has not obtained
right or interest  to any domain name in  violation  of any Law,  including  the
Anticybersquatting Consumer Protection Act.

            3.20. BANK  ACCOUNTS;  CREDIT CARDS;  CORPORATE ACCOUNTS;  POWERS OF
ATTORNEY.  SCHEDULE  3.20 hereto sets forth a true and complete list of all: (i)
banks in which the Kali has an account or safe  deposit box and the names of all
Persons authorized to draw thereon and who have access thereto; (ii) credit card
issuers  with which Kali has an account and the names of all Persons  authorized
to use such accounts or who have access thereto; (iii) cellular telephone, phone
card or other corporate accounts with which Kali has an account and the names of
all Persons authorized to use such accounts or who have access thereto; and (iv)
Persons  holding  powers  of  attorney  from  Kali  (clauses  (i)  through  (iv)
collectively,  the  "Corporate  Accounts and  Powers").  There are no automatic,
periodic or scheduled  withdrawals  or debits with respect to any of the bank or
corporate accounts required to be set forth on SCHEDULE 3.20.


            3.21. TITLE TO PROPERTIES AND ASSETS; INVENTORY. Except as set forth
on SCHEDULE 3.21 hereto,  Kali has good and  marketable  title to all of (x) the
properties and assets owned or purported to be owned by it that are reflected as
assets  on the  most  recent  balance  sheet  contained  in the  Kali  Financial
Statements and (y) those  properties and assets  acquired by Kali since the date
of such balance sheet  (except for inventory or other assets  disposed of in the
ordinary course of business consistent with past practice since the date of such
balance sheet),  free and clear of all Liens, except Permitted Liens. All of the
tangible properties and assets owned or purported to be owned by Kali are in all


                                       33


material respects in satisfactory operating condition and free from any material
defects. Immediately following the Closing, PRI shall have obtained title to, or
the  enforceable  right to use, all properties,  assets and rights  necessary to
conduct  the  business of Kali,  on a  stand-alone,  independent  basis as it is
currently  conducted.  Kali has good and valid  title to all  inventory  that it
purports to own, free and clear of all Liens, except for Permitted Liens, and no
such  inventory is subject to recall.  All items of  inventory  reflected on the
most recent balance sheet contained in the Kali Financial Statements or acquired
by Kali since  December 31, 2003 consist of a quantity and quality  suitable and
commercially  usable and  saleable in the  ordinary  course of business  for the
purposes  for which they are  intended,  except  for  obsolete,  slow-moving  or
defective  items, all of which have been written down to net realizable value or
have been adequately  reserved  against on the books and records of Kali (and on
the Kali Financial  Statements,  to the extent  applicable)  in accordance  with
GAAP, consistently applied in accordance with Kali's past practices.

            3.22. PRODUCTS.  SCHEDULE 3.22 hereto sets forth a true and complete
list of all of the  products  currently  or  formerly  manufactured,  developed,
researched,  packaged,  labeled,  distributed  or sold  by  Kali at or from  the
Facility or that certain  facility owned by VGS and located in  Piscataway,  New
Jersey.  In respect  of each of such  products,  SCHEDULE  3.22 sets forth (i) a
description  of the  regulatory  status  thereof  (as of  the  Effective  Date),
including  information  regarding any  applications  (including  NDAs and ANDAs)
filed with the FDA or any other  Governmental  Authority in connection  with the
safety,  efficacy,  sale,  distribution  or use of each such  product;  and (ii)
whether the particular  regulatory status has been presented to the FDA or other
Governmental  Authority  under  the  name of Kali or under  the name of  another
Person.

            3.23. CERTAIN BUSINESS MATTERS. Except as set forth on SCHEDULE 3.23
hereto, (i) Kali does not have any sole-source  supplier of significant goods or
services  (other than  utilities)  with respect to which  practical  alternative
sources are not available on equivalent terms and conditions;  (ii) Kali has not
received  any  written  indication  that  any  material  supplier  to Kali  will
terminate, materially increase the cost of or materially change other terms with
respect to  supplying  materials,  products or services  to, Kali  (whether as a
result  of  the  consummation  of  the  transactions   contemplated   hereby  or
otherwise);  (iii) Kali  neither  gives nor is bound by any  express  warranties
relating to its products and, to the  knowledge of Kali,  since January 1, 2002,
there has been no assertion(s) of any breaches of warranty or product liability;
(iv) to the  knowledge  of Kali,  there  have been no  material  workmanship  or
service  problems or, since  January 1, 2002,  any material  claims made against
Kali with respect to any product sold or services  provided by Kali; (v) Kali is
capable of  performing  the Kali  Material  Agreements to which it is a party in
accordance  with all material terms thereof;  and (vi) Kali is not a party to or
otherwise  bound by any  agreement  or  arrangement  that  limits its freedom to
compete in any line of  business  or any  geographic  area or with any Person or
that requires it to transact business exclusively with any Person.

            3.24. CUSTOMERS.  Except as set forth on  SCHEDULE  3.24(a)  hereto,
neither  Kali nor any of the Kali  Shareholders  has  received  notice  that any
material customer of Kali intends to terminate, suspend or materially change the
terms  of its  agreement(s)  or  arrangement(s)  with  Kali  as a  result  of or
following the transactions contemplated hereby or otherwise. Except as set forth
on SCHEDULE 3.24(b),  Kali does not have any agreements or arrangements with any
of its customers with respect to guaranteed or fixed pricing, order cancellation
price  reductions,  discounts or rights to return or reject any products sold by
Kali, except as expressly provided in any applicable Kali Material Agreements.

                                       34


            3.25. INSURANCE. SCHEDULE 3.25 hereto sets forth a true, correct and
complete  list and  general  description  of all  policies  or  binders of fire,
liability,  product  liability,   workers'  compensation,   vehicular,  business
interruption  or other  insurance  held by or on behalf of Kali  specifying  the
insurer,  the policy number or covering note number with respect to binders, and
describing any pending claim(s) thereunder. All of such policies and binders are
in full force and effect.  Kali is in not default  with  respect to any material
provision contained in any such policy or binder. Kali has not received or given
a written notice of cancellation or non-renewal  with respect to any such policy
or  binder.  Kali  holds  the type  and  amount  of  insurance  required  by the
applicable  Kali  Material  Agreements  in respect of the  products set forth on
SCHEDULE 3.22 hereto.


            3.26. TRANSACTIONS  WITH  RELATED  PARTIES.  Except  as set forth on
SCHEDULE  3.26 hereto,  no director,  officer or Affiliate of Kali,  none of the
Kali  Shareholders  and no  immediate  family  member,  Affiliate  or  Associate
thereof:  (i) has borrowed  money from or loaned money to Kali that has not been
repaid;  (ii) has any  contractual,  tort or other  claim,  express or  implied,
against Kali; (iii) has or has had, since January 1, 2001, any right or interest
in or to any property, rights or assets owned or used by Kali in its business or
activities;  or (iv) is party to any contract,  transaction or other arrangement
with Kali or its Affiliates, other than (x) any employment agreements or (y) any
contracts   between  Kali  and  VGS  that  involve  (or  could  involve  if  all
contingencies were met)  consideration of less than $50,000.  SCHEDULE 3.26 sets
forth a true and complete list (or, as applicable, description) of each accounts
receivable,  accounts payable and/or loan or similar  arrangements  between Kali
and VGS.


            3.27. BROKERS.  In connection with the transactions  contemplated by
this Agreement or by the other agreements  contemplated hereby, neither Kali nor
any of the  Kali  Shareholders  is a  party  to any  agreement,  arrangement  or
understanding with any Person that will result in the obligation of PRI, Kali or
any  of  their  respective   Affiliates  to  pay  any  finders'  fee,  brokerage
commission, investment advisory fee or similar payment.


            4.    REPRESENTATIONS AND WARRANTIES OF THE KALI SHAREHOLDERS.
                  --------------------------------------------------------
Each Kali Shareholder hereby represents and warrants to PRI as follows:


            4.1   AUTHORITY TO EXECUTE AND PERFORM  AGREEMENTS;  ENFORCEABILITY.
Such Kali Shareholder has the legal capacity or authority to enter into, execute
and deliver  this  Agreement,  the Warrant  Agreement  and the other  agreements
contemplated  hereby to which it/he is (or will be) a party and to perform  such
Kali  Shareholder's  obligations  hereunder and  thereunder.  This Agreement has
been, and the Warrant  Agreement and the other  agreements  contemplated  hereby
will be, duly executed and delivered by such Kali  Shareholder  and,  subject to
the due  authorization,  execution and delivery of such  agreements by the other
Parties thereto, this Agreement,  the Warrant Agreement and the other agreements
contemplated  hereby constitute (or will constitute when executed  subsequent to
the  Effective  Date) valid and binding  obligations  of such Kali  Shareholder,
enforceable  against such Kali  Shareholder in accordance with their  respective
terms,  except as such  enforcement may be affected by the Bankruptcy and Equity
Exception.  The execution and delivery of this Agreement,  the Warrant Agreement
and the other  agreements  contemplated  hereby and the performance by such Kali


                                       35


Shareholder of its/his  obligations under this Agreement,  the Warrant Agreement
and the other agreements  contemplated  hereby do not (or will not when executed
subsequent to the Effective Date) (a) assuming receipt of the Consents  referred
to in Section 3.6 hereof (including the exceptions therein), require the Consent
of any Governmental  Authority or Person; (b) conflict with, or otherwise result
in the breach or violation  of, or  constitute  (or, with notice or the lapse of
time or both, would constitute) a default under, any Law applicable to such Kali
Shareholder or any contract or other agreement to which such Kali Shareholder is
a party or by or to which such Shareholder is otherwise bound or subject; or (c)
result in the  imposition of any Lien against any of the assets or properties of
such Kali Shareholder, other than in favor of PRI.

            4.2   TITLE  TO KALI  SHARES.  Such Kali  Shareholder  solely  owns,
beneficially  and of  record,  the Kali  Shares  set  forth  opposite  such Kali
Shareholder's  name on SCHEDULE  3.3(c) hereto.  Except as set forth on SCHEDULE
4.2 hereto, upon delivery of the Purchase Price by PRI at the Closing,  and such
Kali Shareholder transferring to PRI his/its Kali Shares, PRI shall acquire good
and marketable title to such Kali Shares, free and clear of all Liens. Except as
set forth on SCHEDULE 4.2, other than pursuant to this  Agreement,  none of such
Kali Shares is subject to any voting trust,  proxy or other contract,  agreement
or arrangement,  including any such contract,  agreement or arrangement relating
to the voting, dividend rights or disposition of any of such Shares.

            4.3   LITIGATION.  There  are no  claims,  actions,  suits  or other
proceedings  pending or, to the knowledge of such Kali  Shareholder,  threatened
against  such  Kali  Shareholder  in,  before or by any  Governmental  Authority
relating to the transactions contemplated by this Agreement.

            4.4   INVESTMENT  INTENT.  Such Kali Shareholder  acknowledges  that
none of the Warrants or the shares of PRI Common Stock  underlying  the Warrants
has been registered  under the Securities Act or any state  securities Laws. The
Warrants and shares of PRI Common Stock underlying the Warrants will be acquired
by such Kali  Shareholder  for  investment  purposes only and not with a present
view to the distribution thereof. Such Kali Shareholder has no present intention
to resell or  otherwise  dispose  of any of the  Warrants  or the  shares of PRI
Common Stock underlying the Warrants.

            4.5   INFORMATION.  Such Kali Shareholder (or, in respect of clauses
(i), (iii) and (iv) below, if such Kali  Shareholder is a trust,  the trustee(s)
of such trust) (i) has such  knowledge and  experience in financial and business
affairs so that it is capable of  evaluating  the merits and risks  involved  in
purchasing  the  Warrants  and the shares of PRI  Common  Stock  underlying  the
Warrants;  (ii) is able to bear the economic  risks  involved in purchasing  the
Warrants and the shares of PRI Common Stock  underlying the Warrants;  (iii) has
had the  opportunity  to ask  questions of, and receive  answers  from,  PRI and
Persons acting on PRI's behalf concerning PRI, the terms of the Warrants and the
shares  of PRI  Common  Stock  and  to  obtain  any  additional  information  in
connection therewith; and (iv) is a resident of the State New Jersey.

            4.6   ACCREDITATION.   Such  Kali   Shareholder  is  an  "accredited
investor" within the meaning of Regulation D of the Securities Act.

                                       36


            4.7   ELIGIBLE S CORPORATION SHAREHOLDER.  Such Kali Shareholder has
always been,  and through the Closing will continue to be, a Person  eligible to
be a shareholder of an S corporation  under Code Section 1361, and has not taken
(or has not failed to take) such actions,  and has caused Kali to have taken (or
to have not failed to take) such actions as were (or will be) necessary for Kali
to continue to maintain its legal status as an S corporation  from its inception
through the Closing.

            5.    REPRESENTATIONS  AND  WARRANTIES  RELATING TO PRI.  PRI hereby
represents and warrants to Kali and the Kali Shareholders as follows.


            5.1.  ORGANIZATION AND DUE AUTHORIZATION.  PRI is a corporation duly
organized,  validly existing and in good standing under the laws of the State of
Delaware.  PRI has the  requisite  corporate  power and authority to execute and
deliver  this  Agreement,   the  Warrant  Agreement  and  the  other  agreements
contemplated  hereby to which it is (or will be) a party and to  consummate  the
transactions contemplated hereby and thereby. The execution and delivery of this
Agreement, the Warrant Agreement and the other agreements contemplated hereby to
which PRI is (or will be) a party and the  performance  and  consummation of the
transactions contemplated hereby and thereby by PRI have been duly authorized by
all necessary  corporate action on the part of PRI. This Agreement,  the Warrant
Agreement and the other agreements  contemplated hereby to which PRI is (or will
be) a party  have been (or will be when  executed  subsequent  to the  Effective
Date) duly executed and delivered by PRI and, subject to the due  authorization,
execution and delivery of such  agreements by the other  Parties  thereto,  this
Agreement,  the Warrant Agreement and the other agreements  contemplated  hereby
constitute (or will constitute  when executed  subsequent to the Effective Date)
valid and binding obligations of PRI, enforceable against PRI in accordance with
their  respective  terms,  except as such  enforcement  may be  affected  by the
Bankruptcy and Equity Exception.


            5.2.  NO  VIOLATION;  CONSENTS  AND  APPROVALS.  The  execution  and
delivery of this  Agreement,  the  Warrant  Agreement  and the other  agreements
contemplated  hereby and the  performance by PRI of its  obligations  under this
Agreement,  the Warrant  Agreement and such other agreements do not (or will not
when executed  subsequent to the Effective  Date) (i) conflict with or result in
any violation of any provision of the certificate of  incorporation or bylaws of
PRI; (ii) except in connection  with the HSR Act,  obtaining  ISRA Clearance and
any applicable  Federal or state  securities or "blue sky" Law filings,  require
the Consent of any Governmental Authority; or (iii) conflict with or violate, or
result in a breach of, or constitute a default  under,  any Law or any agreement
to which PRI is a party or by which PRI is otherwise bound.


            5.3.  INVESTMENT  INTENT. The Kali Shares to be acquired pursuant to
this Agreement will be acquired by PRI for investment and not with a view to the
distribution thereof in contravention of any applicable securities Laws.


            5.4.  LITIGATION.  There  are no  claims,  actions,  suits  or other
proceedings  pending or, to the  knowledge  of PRI,  threatened  against PRI in,
before  or  by  any   Governmental   Authority   relating  to  the  transactions
contemplated by this Agreement.


            5.5.  BROKERS.  Except pursuant to PRI's agreement with Bear Stearns
& Co.,  Inc.,  whose fees and  expenses  shall be paid  solely by it, PRI is not
party to any agreement,  arrangement or understanding  with any Person that will


                                       37


result in the obligation of PRI, Kali or any of the Kali Shareholders to pay any
finders' fee, brokerage  commission,  investment advisory fee or similar payment
in connection with the transactions  contemplated by this Agreement or the other
agreements contemplated hereby.


            5.6.  SECURITIES  LAW  FILINGS.  (a) During the one- (1) year period
immediately  preceding  the  Effective  Date,  PRI has timely filed all reports,
proxy statements, registration statements and documents that PRI was required to
file with the SEC under the  Securities  Act and the Exchange  Act, all of which
complied as to form in all material respects with all applicable requirements of
the  Securities  Act or the Exchange  Act, as the case may be, and the rules and
regulations adopted  thereunder.  As of their respective filing dates, each such
report,  proxy  statement,  registration  statement  or other  document  did not
contain any untrue statement of a material fact or omit to state a material fact
required to be stated therein or necessary to make the statements  made therein,
in light of the circumstances under which they were made, not misleading.

            (b)   The  financial  statements of PRI contained in its most recent
filing with the SEC on Form 10-K fairly present,  in all material respects,  the
financial  position of PRI and its consolidated  subsidiaries and the results of
operations of PRI and its consolidated subsidiaries as at the end of and for the
fiscal year  covered  thereby.  Since the date of such Form 10-K,  there has not
been any material adverse change in the business,  assets or financial condition
of PRI and its consolidated subsidiaries, taken as a whole, that would adversely
affect PRI's ability to perform its obligations hereunder.


            6.    COVENANTS AND AGREEMENTS.
                  ------------------------

            6.1.  CONDUCT OF THE BUSINESS.

            (a)   From and after the Effective Date and until the earlier of (x)
the  Closing and (y) the  Termination  Date,  except (1) with the prior  written
consent of PRI or (2) as may be expressly permitted by this Agreement (including
SCHEDULE 6.1(a)  hereto),  the Kali  Shareholders  shall cause Kali to, and Kali
shall:
                  (i) conduct  its  business in the  ordinary  and usual  course
consistent with past practice,  including paying expenses and accounts  payables
and  manufacturing,  supplying,  packaging and  distributing any of the products
covered by the Kali Material Agreements in accordance with the terms thereof;

                  (ii) use  commercially  reasonable  efforts to preserve intact
its relationships with those persons having material business dealings with it;

                  (iii) not amend in any material respect, or terminate,  any of
the Kali  Material  Agreements,  or enter  into a  material  agreement  (x) with
respect to any of the Leased Real Property or (y) that would, if in effect as of
the Effective Date, constitute a Kali Material Agreement;

                                       38


                  (iv)  not  take  (without  duplication  of any  of  the  other
restrictions contained in this Section 6.1(a)) any of the actions referred to in
subsections (a) through (o) of Section 3.9 hereof;

                  (v) not (A) repeal, alter or adopt any amendment to any of the
Kali Organizational  Documents;  (B) adopt a plan of liquidation or dissolution;
(C) enter into any merger, consolidation or similar business combination with or
into any Person or any agreement  therefor;  (D) repurchase or redeem any shares
of its capital stock;  (E) pay any dividends on, or make any  distribution  with
respect  to, any of its  shares of capital  stock;  (F) issue or  authorize  the
issuance of, or agree to issue or sell, any shares of their capital stock of any
class  (whether  through a direct  issuance or  granting  of options,  warrants,
commitments,  convertible  securities,  subscriptions,  rights  to  purchase  or
otherwise);  (G) incur, guarantee or assume any indebtedness for borrowed money;
(H) hire any employees,  except for the New Hires; or (I) make or commit to make
(x) any  investment  in, or purchase any equity  securities of or, except in the
ordinary course of business,  a material  portion of the assets of any Person or
(y) capital expenditures, other than Permitted Capital Expenditures;

                  (vi) not sell, transfer or otherwise dispose of, or subject to
or  permit  any  Lien  (other  than  Permitted  Liens)  on,  any of (x) the Kali
Intellectual Property Rights or (y) the other properties or assets of Kali other
than in the ordinary course of business;

                  (vii) not commence or settle any lawsuit or litigation,  other
than in the ordinary course of business;

                  (viii) use  commercially  reasonable  efforts to maintain  and
repair,  or cause to be  maintained  and  repaired,  all  Leased  Real  Property
(including all Improvements thereon) and equipment, in each instance in adequate
condition and repair as reasonably necessary in connection with the operation of
Kali's  businesses  and shall  promptly  notify PRI of any material  casualty or
damage to any portion of the Leased Real  Property  or any  material  portion of
Kali's equipment or inventory;

                  (ix) timely pay any Taxes that may become due; and

                  (x) not take (or omit to take) any action that would cause any
of the  conditions  set forth in  Sections  8 or 9 of this  Agreement  not to be
satisfied.

            (b)   From and after the Effective Date and until the earlier of (x)
the Closing and (y) the Termination  Date, except as may be agreed to in writing
by Kali,  PRI shall not, and shall not permit any of its Affiliates to, take any
action or agree to take (or omit to take) any action that would cause any of the
conditions set forth in Sections 8 or 9 of this Agreement not to be satisfied.

            6.2   PRE-CLOSING  ACCESS. From and after the Effective Date through
the earlier of (x) the Closing and (y) the Termination  Date, Kali shall provide
PRI and its employees, counsel, accountants and other representatives reasonable
access,  during normal business hours and following  reasonable prior notice, to
the  Facility  and to such  of its  customers  and  suppliers,  properties,  Tax
Returns,  Books and Records and employees as PRI deems necessary or advisable in
connection with the transactions  contemplated hereby. PRI and its employees and

                                       39


representatives  shall  be  entitled  to  conduct  such  environmental  studies,
analyses and inspections with respect to Kali's assets and properties as PRI may
reasonably require. Kali and the Kali Shareholders shall timely furnish PRI with
such financial and operating data and other  information  regarding Kali and its
businesses and operations as PRI may from time to time reasonably  request.  All
information  disclosed to PRI in connection with the  transactions  contemplated
hereby  shall be  subject  to the  provisions  of that  certain  confidentiality
agreement  executed by PRI and Kali on or about  January 16,  2004.  None of the
investigations  or  reviews  conducted  by PRI shall in any way  affect or limit
Kali's  or the Kali  Shareholders'  representations,  warranties,  covenants  or
agreements contained herein.

            6.3   COMMERCIALLY  REASONABLE EFFORTS;  ANTI-TRUST FILINGS; FURTHER
ASSURANCES.
            (a)   Each   of  the  Parties  shall  act  in  good  faith  and  use
commercially  reasonable efforts to take, or cause to be taken, all actions, and
to do, or cause to be done, all things  necessary or advisable to consummate the
transactions  contemplated by this Agreement as soon as reasonably  practicable.
Without  limiting the generality of the foregoing,  the Parties shall, and shall
cause their respective Affiliates to, use commercially reasonable efforts to (i)
obtain,  on or prior to the Closing,  all Consents  and waivers  (including  the
waiver of any right of first  refusal  held by any Person,  including  the right
purported to be held by Perrigo  pursuant to the Option  Agreement (the "Perrigo
Waiver"))  and  provide  all  notices  to,  and  make all  filings  with and all
applications and submissions to, any  Governmental  Authority or Person required
for the  consummation  of the  transactions  contemplated  by this  Agreement as
promptly as reasonably practicable;  provided,  HOWEVER, that to the extent that
any of such Consents are not obtained by the Closing Date, the Kali Shareholders
and PRI shall  continue to use  commercially  reasonable  efforts  thereafter to
obtain them;  (ii) provide all such  information  concerning  such Party and its
officers,  directors,  employees, trustees and Affiliates as may be necessary or
reasonably  requested by another Party in  connection  with the  foregoing;  and
(iii) avoid the entry of, or have vacated or terminated, any injunction, decree,
order  or  judgment  that  would  restrain,  prevent  or  materially  delay  the
consummation  of the  transactions  contemplated  by this  Agreement,  including
defending through litigation any claim asserted in any court by any Governmental
Authority or Person.

            (b)   Each  of the Parties shall take any and all  reasonable  steps
necessary  to  avoid  or  eliminate  any  impediment(s)   under  any  antitrust,
competition  or  trade  regulation  Law  that is  asserted  by any  Governmental
Authority with respect to the consummation of the  transactions  contemplated by
this  Agreement  so as to  enable  the  consummation  of  such  transactions  as
expeditiously as possible. Without limiting the generality of the foregoing, the
Parties  shall make, or cause to be made on their  behalf,  appropriate  filings
under the HSR Act with  respect to the  transactions  contemplated  hereby on or
before the fifth (5th) Business Day after the Effective  Date. The Parties shall
each file or cause to be filed as promptly as practicable  with the U.S. Federal
Trade Commission and the U.S. Department of Justice any supplemental information
that may be requested  pursuant to the HSR Act.  All such  filings  shall comply
with the  requirements  of the HSR Act. Prior to making any  application  to, or
filing with, a  Governmental  Authority in connection  with this  Agreement each
Party shall  provide  the other  Party with drafts  thereof and afford the other
Party a reasonable  opportunity to review and comment on such drafts;  PROVIDED,
HOWEVER,   that  the  Parties   shall  be  required  to  share   drafts  of  the
transaction-specific  portions of such  filings  only.  Furthermore,  each Party
shall  (i) not  extend  any  waiting  period  under  the  HSR  Act or any  other


                                       40


applicable  antitrust or  competition  Laws or enter into any agreement with any
Governmental Authorities not to consummate the transactions contemplated by this
Agreement,  except with the prior written consent of the other Party(ies);  (ii)
promptly notify the other Party(ies) of any written  communication to that Party
or its Affiliates from any  Governmental  Authority  regarding the  transactions
contemplated by this Agreement and,  subject to applicable Law, permit the other
Party(ies) to review in advance any proposed  written  communication in response
to any  of  the  foregoing;  (iii)  not  participate,  or to  permit  any of its
Affiliates to  participate,  in any  substantive  meeting or discussion with any
Governmental  Authority in respect of any filings,  investigations  or inquiries
concerning  this  Agreement   unless  it  consults  with  the  other  Party(ies)
reasonably in advance thereof and, to the extent permitted by such  Governmental
Authority,  gives the other Party(ies) the opportunity to attend and participate
in such meeting;  and (iv) promptly  furnish the other Party(ies) with copies of
all correspondence,  filings and communications (and memoranda setting forth the
substance   thereof)   between  it  and  its  Affiliates  and  their  respective
representatives,  on the one hand, and any  Governmental  Authority(ies)  or the
members of their  respective  staffs,  on the other hand,  with  respect to this
Agreement.  Additionally,  Kali shall take any and all  commercially  reasonable
steps to install,  as soon as possible,  a separator  to the  existing  sanitary
sewer line to the Facility (the "Separator").


            6.4.  NON-COMPETITION.
                  ----------------

            (a)   In  consideration of PRI's payment of the Purchase Price, each
of the Kali Shareholders and its Affiliates and Associates shall not:

                  (i) directly or  indirectly,  for a period  commencing  on the
Closing  Date and  ending  thirty  (30)  months  after  the  Closing  Date  (the
"Non-Competition  Period"), by ownership of securities or otherwise (except as a
holder of less than five (5%) percent of any class of equity  securities  of any
other Person, which class of securities shall have been registered under Section
12 of the Exchange  Act),  manage,  control,  finance,  consult with,  engage or
participate in any manner in any business or activity (collectively,  "Compete")
anywhere in the world that is competitive  with any portion of the Kali Business
or any other business of PRI (or any of its Affiliates); PROVIDED, HOWEVER, that
in respect of Mr. Subramanian, the Non-Competition Period shall terminate on the
later of (A) the termination or expiration of Mr. Subramanian's  employment with
Par pursuant to the Subramanian  Employment Agreement and (B) thirty (30) months
after the Closing  Date  (unless Mr.  Subramanian's  employment  shall have been
terminated  pursuant to Sections  3.2.4 or 3.2.5 of the  Subramanian  Employment
Agreement), in which case the Non-Competition Period shall terminate twenty-four
(24) months after the Closing Date); and

                  (ii)  directly  or  indirectly,  at any time after the Closing
Date, Compete anywhere in the world with or in respect of (A) any products as to
which PRI (or any of its Affiliates),  or any co-development  partner of PRI (or
any of its Affiliates),  shall have filed  (irrespective of whether accepted for
filing  by  the  FDA)  in  good  faith  an  ANDA  or  NDA  (including  505(b)(2)
Applications)  with the FDA,  in each case,  with  respect to a drug  technology
substantially  developed  by  PRI  (or  any  of  its  Affiliates),   as  of  the
Determination  Date;  (B) any products  that PRI (or any of its  Affiliates)  is
manufacturing,  supplying, distributing or selling, either by itself or together
with any other Person  (including  any product  marketed  through any authorized

                                       41


generic  product  agreement),  as of the Closing Date; (C) any products that PRI
(or  any of its  Affiliates)  shall  manufacture  or  shall  have  developed  or
co-developed and either supply, distribute or sell, either by itself or together
with any Person,  at any time from the  Effective  Date through the later of the
Subramanian  Termination  Date and date  that is  thirty  (30)  months  from the
Closing Date; or (D) any products that are marketed or  distributed  through any
brand authorized  generic product  agreement at any time from the Effective Date
through the later of the  Subramanian  Termination  Date and date that is thirty
(30) months from the Closing Date. As used herein, the term "Determination Date"
shall mean the later of (x) forty-two  (42) months from the Closing Date and (y)
twelve  (12)  months  from  the  Subramanian  Termination  Date,  other  than  a
termination  pursuant to Sections 3.2.4 or 3.2.5 of the  Subramanian  Employment
Agreement, in which case the Determination Date shall be twelve (12) months from
the date of such termination (irrespective of clause (x) above). Notwithstanding
the foregoing,  with respect to the products  described in clause (A) above,  if
the Subramanian Termination Date is on or after the thirtieth (30th) month after
the Closing  Date or Mr.  Subramanian's  employment  is  terminated  pursuant to
Sections 3.2.4 or 3.2.5 of the Subramanian  Employment  Agreement,  this Section
6.4(a)(ii) shall apply to all ANDAs or NDAs (including  505(b)(2)  Applications)
filed  before  such  Subramanian  Termination  Date and after  such  Subramanian
Termination Date only as to which material  development efforts relating to such
product shall have occurred prior to the Subramanian Termination Date.

                  PRI (or Par, on PRI's behalf) shall deliver to Mr. Subramanian
(i) at the Closing a then current  list of all products  included in clauses (A)
through  (D)  above,  including  a list of ANDAs and NDAs  (including  505(b)(2)
Applications)  that PRI (or any of its  Affiliates) has filed  (irrespective  of
whether  accepted for filing by the FDA),  and then  presently  expects to file,
with the FDA within  twelve (12)  months of  delivery of the list (the  "Product
List") and (ii) an update of the Product List monthly thereafter during the term
of Mr.  Subramanian's  employment  with Par or PRI and  (iii) a  proposed  final
Product List within  twenty (20) Business  Days of the  Subramanian  Termination
Date (the "Proposed  Definitive Product List"). In addition,  within twenty (20)
Business  Days of the  Determination  Date,  PRI (or Par, on PRI's behalf) shall
provide to Mr. Subramanian an updated version of the Proposed Definitive Product
List, which revised list shall be the definitive  Product List setting forth the
products with which the Kali  Shareholders  shall not Compete in accordance with
Section 6.4(a)(ii) hereof (the "Definitive  Product List"). For the avoidance of
doubt, if the Subramanian  Termination  Date is on or after the thirtieth (30th)
month after the  Closing  Date or Mr.  Subramanian's  employment  is  terminated
pursuant to Sections 3.2.4 or 3.2.5 of the Subramanian Employment Agreement, the
Definitive  Product  List shall not contain any  products  (x) that were not set
forth on the  Proposed  Definitive  Product List and (y) as to which no material
development  efforts occurred prior to the Subramanian  Termination  Date. PRI's
right to enforce this Section  6.4(a)(ii) shall be conditioned upon its delivery
to Mr.  Subramanian  of  both  the  Proposed  Definitive  Product  List  and the
Definitive  Product List. If requested by the Kali Shareholders' Rep in writing,
PRI (or Par, on PRI's  behalf)  shall provide  reasonably  satisfactory  written
evidence  (x) of the  filing  of each  ANDA  or NDA  with  the FDA and (y)  that
material  development efforts shall have been performed prior to the Subramanian
Termination  Date,  in each case,  with respect to each product set forth on the
Definitive Product List and, if reasonably satisfactory written evidence of such
filing is not  delivered  to Mr.  Subramanian  within  thirty  (30) days of such
request,  such product shall be deemed deleted from the Definitive Product List.
This Section 6.4(a)(ii) shall not be violated by any Kali Shareholder (or any of
their respective  Affiliates and Associates)  owning less than five (5%) percent


                                       42


of any class of equity securities of any other Person (which class of securities
shall have been registered  under Section 12 of the Exchange Act), that Competes
with any of the products on the Product List.

            (b)   The  Kali   Shareholders   acknowledge  that  a  violation  or
threatened  violation of any of the provisions of this Section 6.4,  Section 6.9
or  Section  6.10  hereof  may  result  in PRI  and  its  Affiliates  sustaining
irreparable harm, which result may not be adequately redressed by the payment of
damages to PRI and its  Affiliates  and,  therefore,  in  addition  to any other
remedies that PRI and its Affiliates may have under this Agreement or otherwise,
PRI and its  Affiliates  shall be  entitled  to apply to any court of  competent
jurisdiction,  at law or in equity,  for an  injunction,  without  providing any
bond,  enjoining or restraining any such violation,  including the rescission of
any violative  transaction to the extent  permissible  under applicable Law. If,
for  any  reason,  a court  of  competent  jurisdiction  shall  find  any of the
provisions of this Section 6.4, Section 6.9 or Section 6.10 hereof  unreasonable
in duration,  geographic scope or otherwise,  the prohibitions  contained herein
shall be restricted to such time and geographic area as such court determines to
be  reasonable  and that  reflect  the  intention  of the Parties to the fullest
extent  permissible.  Such  restriction  shall  apply  only with  respect to the
operation  of such  provisions  in the  particular  jurisdiction  in which  such
adjudication is made.

            (c)   The  Parties  hereby  acknowledge  that this  Section  6.4 and
Sections 6.5, 6.9 and 6.10 hereof are essential terms of this Agreement.


            6.5.  BIOSTUDIES  PRODUCTION.  If,  for any  reason,  following  the
Closing, Kali shall fail to complete a Biostudy  (irrespective of the outcome of
any such Biostudy) in respect of at least one (1) new product during each of the
four  successive six- (6) month periods  immediately  following the Closing Date
(PROVIDED,  that, with respect to the last of such six- (6) month periods,  Kali
must  complete or be actively  conducting  a Biostudy  during the last three (3)
months of such period), any such failure (the "Failure to Complete  Biostudies")
shall constitute a material breach by the Kali Shareholders of this Agreement.
 Upon such a breach, the Kali Shareholders shall be jointly and severally liable
to PRI for their PRO RATA share of liquidated  damages in an aggregate amount of
$30,000,000 (the "Disruption  Damages").  Each Kali Shareholder's PRO RATA share
of the  Disruption  Damages shall be equal to such Kali  Shareholder's  PRO RATA
share of the Cash Purchase Price received by such Kali  Shareholder  pursuant to
Section 2.2(c) hereof.  Notwithstanding  the  foregoing,  the Kali  Shareholders
shall not be liable for  non-performance of Kali's obligations  pursuant to this
Section 6.5 if and to the extent any such  non-performance  is directly due to a
Force Majeure Event or a Business  Interruption Event. Such non-performance will
be excused for as long (but only for as long) as such event shall be continuing;
PROVIDED,  HOWEVER,  that the Kali  Shareholders'  Rep shall give prompt written
notice to PRI of the Force Majeure Event or Business Interruption Event. PRI and
the Kali  Shareholders' Rep shall exercise  commercially  reasonable  efforts to
eliminate the Force Majeure Event or Business  Interruption  Event and to resume
performance  of  Kali's  affected  obligations  as  soon  as  practicable.   The
occurrence  of any Force  Majeure  Event or Business  Interruption  Event in any
particular  six (6)-month  period shall not excuse or diminish the obligation of
Kali to  complete a  Biostudy  in any other  periods  or the Kali  Shareholders'
obligations  hereunder.  PRI and the Kali  Shareholders  hereby  agree  that the
Disruption Damages are reasonable and shall not constitute a penalty. Payment of
the Disruption Damages shall be subject to Sections 10.3(b) and (c) hereof. Each
of the Kali  Shareholders  hereby  acknowledges  and agrees to the provisions of


                                       43


this  Section 6.5 and further  acknowledges  that such Kali  Shareholder  may be
required to pay a portion of the damages  provided  herein  notwithstanding  the
fact that he, she or it may or may not have been  involved  with the  Failure to
Complete  Biostudies.  The Disruption Damages payable hereunder shall not affect
or diminish the provisions of the last sentence of Section 2.2(e) hereof.


            6.6.  PUBLIC  ANNOUNCEMENTS.  Except as reasonably  determined to be
required  by  applicable  Law or the  rules of any  applicable  stock  exchange,
neither PRI or Kali nor the Kali  Shareholders  shall, nor shall they permit any
of their  respective  Affiliates to, make any public  announcement in respect of
this Agreement,  the other  agreements  contemplated  hereby or the transactions
contemplated  hereby or thereby,  without the prior written consent of the other
Party(ies) hereto (which consent shall not be unreasonably withheld or delayed).

            6.7.  EMPLOYEES.   Kali  and  Mr.  Subramanian  shall,   subject  to
applicable Law,  support all efforts of PRI to retain all employees of Kali whom
PRI  shall  identify  to Kali  that it  desires  to  employ  to  continue  their
employment with Kali (the  "Continuing  Employees").  PRI shall use commercially
reasonable  efforts to  provide  the  Continuing  Employees  with such  employee
benefit plans as are provided  generally to employees of PRI and its  Affiliates
who have equivalent  responsibilities,  salaries and years of service, including
any  participation  in applicable  employee  incentive equity ownership or stock
option plans.  Notwithstanding the foregoing,  the Continuing  Employees are not
intended to, and shall not, be  third-party  beneficiaries  of this or any other
provision of this Agreement.


            6.8.  RESIGNATIONS;  REVOCATIONS; RELEASES. On or before the Closing
Date,  Kali shall cause to be delivered to PRI (i) duly  executed  resignations,
effective immediately after the Closing, of those officers and directors of Kali
as shall be  requested  by PRI in a writing  delivered  to Kali on or before the
second  (2nd)  Business  Day  prior  to the  Closing;  and  (ii)  duly  executed
revocations,  effective immediately after the Closing, of the Corporate Accounts
and Powers. Additionally,  each of the Kali Shareholders,  on its own behalf and
on behalf of any of its Affiliates and Associates,  hereby  irrevocably  waives,
and  transfers to PRI,  subject to and effective  upon the Closing,  any and all
claims, rights or interests that such Kali Shareholder has or may have in, to or
in respect of the matters  referred  to in clauses  (i) through  (iv) of Section
3.26 hereof.


            6.9.  CONFIDENTIALITY.  From and after the Closing Date, each of the
Kali Shareholders shall treat and hold as confidential all information  relating
to the assets, operations and condition of Kali. Without limiting the foregoing,
each of the Kali Shareholders  shall not, and shall cause each of its Affiliates
not to, disclose any such confidential information to any Person (except, as may
be necessary, to such Person's auditors, counsel or other professional advisors)
or make use of or exploit any such confidential information for its own purposes
or for the benefit of any other  Person  (other than Kali or PRI).  In the event
that any of the Kali  Shareholders or their  Affiliates are required (by oral or
written  request  for   information  or  documents  in  any  legal   proceeding,
interrogatory,  subpoena,  civil investigative  demand or similar process, or by
applicable Law) to disclose any such  confidential  information,  then such Kali
Shareholder  shall  promptly  notify PRI of the  requirement so that PRI, at its
expense, may seek an appropriate  protective order or waive compliance with this
Section  6.9.  If, in the absence of a  protective  order or receipt of a waiver
hereunder,  a Kali  Shareholder  or its  Affiliate is, on the advice of counsel,

                                       44


compelled to disclose such  confidential  information,  the Kali Shareholder (or
such Affiliate) may so disclose the confidential information; PROVIDED, HOWEVER,
that the Kali  Shareholder or such  Affiliate,  as the case may be, will use all
reasonable efforts to obtain reliable assurance that confidential treatment will
be afforded to such confidential information. The provisions of this Section 6.9
shall not be deemed to  prohibit  the  disclosure  by the Kali  Shareholders  of
confidential  information  relating to the  operations or affairs of Kali to the
extent  reasonably and directly required (i) to prepare or complete any required
Tax  Returns or  financial  statements,  (ii) in  connection  with any  reports,
statements,  testimony audits or other  proceedings  before or by a Governmental
Authority,  (iii) to comply with any applicable  Laws,  (iv) to defend any suit,
claim or other litigation,  or in response to any summons or subpoena, or (v) to
provide  services to PRI in accordance  with the terms of this  Agreement or any
other agreement  contemplated  hereby.  The provisions of this Section 6.9 shall
not apply to information that is or becomes (x) publicly available other than as
a result of a disclosure by any of the Kali  Shareholders  (or their  respective
Affiliates) or (y) available to a Kali Shareholder or any of its Affiliates on a
non-confidential  basis  from a  source  that,  to the  knowledge  of such  Kali
Shareholder,  is not prohibited from  disclosing such  information by any legal,
contractual or fiduciary obligation.


            6.10. NON-SOLICITATION. From the Closing Date until the fourth (4th)
anniversary  of the  Closing  Date  (the  "Non-Solicitation  Period"),  the Kali
Shareholders shall not, directly or indirectly,  hire or recruit any employee of
PRI (or any of its  Affiliates)  or solicit or induce,  or attempt to solicit or
induce,  (i) any employee of PRI (or any of its Affiliates) to terminate his/her
employment with, or otherwise cease his/her relationship with PRI (or any of its
Affiliates)  or (ii) any then  current  customer or client of PRI (or any of its
Affiliates) to materially  alter,  terminate or otherwise cease its relationship
with  PRI  (or  any of  its  Affiliates).  Notwithstanding  the  foregoing,  the
Non-Solicitation  Period in respect of Mr.  Subramanian  shall  terminate on the
later  of  (x)  two  (2)  years  after  the  termination  or  expiration  of Mr.
Subramanian's  employment  with  PRI  pursuant  to  the  Subramanian  Employment
Agreement and (y) four (4) years after the Closing Date,  except (A) in the case
of a termination of Mr.  Subramanian's  employment pursuant to Sections 3.2.4 or
3.2.5   of  the   Subramanian   Employment   Agreement,   in   which   case  the
Non-Solicitation  Period in  respect  of Mr.  Subramanian  as to  customers  and
clients of PRI (but not as to  employees  of PRI) shall,  subject to Section 6.4
hereof,  terminate twelve (12) months from the Subramanian  Termination Date and
(B) that Mr.  Subramanian  may employ Ms.  Subramanian  without any violation or
breach of this Section 6.10.


            6.11. FINANCIAL STATEMENTS AND OTHER INFORMATION. Promptly following
the Effective  Date,  and in no event later than five (5) Business Days prior to
the Closing Date, Kali and the Kali Shareholders  shall provide to PRI copies of
all financial statements of Kali that would be required to be included in a Form
8-K (and any  amendments  thereto) to be filed  pursuant to the  Exchange Act in
connection with the transactions  contemplated hereby. Such financial statements
shall comply in form and  substance  with the  requirements  of such Act and all
other applicable Federal securities Laws and regulations.


            6.12. USE OF LEASED REAL PROPERTY.
                  ---------------------------

            (a)   Prior  to the Closing,  without the prior  written  consent of
PRI,  neither  Kali nor the Kali  Shareholders  shall enter into any contract or
other  agreement  with respect to any portion of the Leased Real  Property  that


                                       45


would survive the Closing or otherwise  adversely  affect the use,  operation or
enjoyment  of the Leased Real  Property  after the  Closing,  unless the same is
terminable upon no more than thirty- (30) days' prior written notice and without
any significant Liability.

            (b)   Upon PRI's reasonable request,  Kali and the Kali Shareholders
shall cooperate with PRI,  without their being required to incur any significant
monetary  obligation,  in  obtaining  any and all  Permits  or  Consents  of any
Governmental Authorities,  including variance and site plan approvals, necessary
for PRI's planned  operations at the Leased Real Property following the Closing;
PROVIDED,  that Kali shall not be  obligated  to obtain any  Permit,  Consent or
variance  required to permit PRI to conduct any  business or activity  after the
Closing  other than in respect of the  businesses  of Kali as  conducted  on the
Closing Date.


            6.13. ISRA/ENVIRONMENTAL COMPLIANCE.
                  -----------------------------

            (a)   ISRA COMPLIANCE. The Parties acknowledge that the transactions
contemplated  hereby require compliance with ISRA.  Notwithstanding  anything to
the contrary contained in this Agreement,  Kali shall assume,  perform,  satisfy
and discharge in full all of its obligations,  responsibilities  and liabilities
under  ISRA  in  connection  with  the  transactions   contemplated  hereby,  as
specifically set forth below.

            (b)   ISRA  CLEARANCE.  Kali shall, as soon as practicable after the
Effective Date, make all filings and submissions  required under ISRA, including
a General  Information  Notice in connection with the transactions  contemplated
hereby  (collectively,  the  "ISRA  Filings"),  and in good  faith  pursue  ISRA
Clearance through a Remediation Agreement (a "Remediation Agreement"),  a Letter
of Non-Applicability, Remediation in Progress Waiver, Expedited Review Approval,
a No Further  Action/Covenant  Not to Sue (an "NFA") or any other  Authorization
Letter, as defined in N.J.A.C. 7:26B-1.4, issued by the New Jersey Department of
Environmental  Protection  ("NJDEP"),  permitting the transactions  contemplated
hereby to be consummated ("ISRA Clearance").

            (c)   REMEDIATION  AGREEMENT.  Kali shall,  as soon as  practicable,
seek to obtain  ISRA  Clearance  via an  Authorization  Letter in respect of the
Facility.  If the Parties shall reasonably determine that, without a Remediation
Agreement,  it is unlikely  that ISRA  Clearance  will be obtained to permit the
Closing to occur within  forty-five  (45) days of the Effective  Date,  then the
Parties shall execute a Remediation Agreement, pursuant to which neither VGS nor
the Kali  Shareholders  shall have any  future  monetary  obligation;  PROVIDED,
HOWEVER,  that if the related  Preliminary  Assessment  Report shall  reasonably
estimate the costs in respect of such remediation to exceed $700,000  (including
the use of Controls), then PRI shall not be obligated to execute the Remediation
Agreement.

            (d)   COST OF ISRA  CLEARANCE.  PRI shall be solely  responsible for
all costs and expenses  required to obtain ISRA Clearance and all  investigatory
and/or  remediation  costs, if any,  relative to ISRA  Clearance,  including any
liability for natural resource damages that (i) are claimed by any Person during
such time following the Closing that Kali shall be the operator  and/or owner of
the  Facility or (ii) that are caused by PRI;  provided,  HOWEVER,  that $6,000,
which amount is the full amount that has been  incurred by Kali relative to ISRA
Clearance prior to the Effective Date, shall remain subject to Section 2.2(d)(v)


                                       46


hereof.   If,  in  the  course  of  obtaining  ISRA   Clearance,   environmental
investigations  and/or  remediation  shall be required  pursuant  to  applicable
Environmental  Laws, PRI shall, at its sole cost and expense,  diligently pursue
final  environmental  approvals  for  such  investigations  and/ or  remediation
requirements,  as applicable,  including  NJDEP's issuance of an NFA, subject to
the  provisions  of Section  6.13(g)  hereof.  With respect to any NFA issued in
connection  with obtaining ISRA  Clearance,  PRI shall execute a covenant not to
sue.

            (e)   INDEMNITY.  Notwithstanding  the foregoing  provisions of this
Section  6.13,  the Kali  Shareholders  shall,  jointly and  severally,  defend,
indemnify and hold harmless Kali, PRI and their respective directors,  officers,
shareholders,  agents,  Affiliates,  successors and permitted assigns,  from and
against,  and shall pay and  reimburse  the  foregoing  Persons for, any and all
Losses  related to or  resulting  from  Kali's  failure to comply  with,  or any
violations by Kali of the  requirements of, ISRA that may arise as a result of a
cessation of business or activity by Kali at a property  other than the Facility
prior to the Effective Date; PROVIDED, HOWEVER, that the aggregate dollar amount
of the Kali Shareholders'  indemnification  obligation  provided in this Section
6.13(e)  shall not exceed  fifty  (50%)  percent of any fines or other  monetary
obligations  imposed under Law or by any  Governmental  Authority as a result of
such failure or violation.

            (f)   STATUS AND ACCESS.  PRI shall keep the Kali Shareholders fully
apprised  of the status of any  post-Closing  investigation  and/or  remediation
actions undertaken at the Facilities, shall provide the Kali Shareholders with a
reasonable  opportunity  to review and comment on and consent to (which  consent
shall not be unreasonably  withheld,  conditioned or delayed)  reports and other
documents  related to such actions prior to their submission to any Governmental
Authority or Person, and shall provide the Kali Shareholders with advance notice
of any meetings with  Governmental  Authorities  regarding  such actions,  as to
which meetings the Kali  Shareholders  or their  representatives  shall have the
right to attend.

            (g)   INSTITUTIONAL  CONTROLS/ENGINEERING  CONTROLS.  PRI  shall not
propose to any Governmental Authority, or implement,  any institutional control,
engineering  control,  or the like,  including a  Classification  Exception Area
and/or  Deed Notice  (collectively,  "Controls")  without  the  express  written
consent  of  the  Kali  Shareholders;  PROVIDED,  however,  that,  if  the  Kali
Shareholders  shall withhold such consent,  then the Kali Shareholders  shall be
solely  responsible  for any and all additional  costs and expenses  required to
obtain  an NFA from  NJDEP  without  the use of  Controls.  Notwithstanding  the
foregoing,  in no event may PRI propose a Control that  materially and adversely
affects the use of the Facility for commercial purposes.

            (h)   EFFECT ON  REPRESENTATIONS,  WARRANTIES,  ETC. Nothing in this
Section 6.13 shall in any way alter or otherwise  diminish the  application,  or
effect, of any of the representations  and warranties  contained in Section 3.14
hereof or the indemnity provisions of Section 11.2(a) hereof.


            6.14. EXCLUSIVE  DEALINGS.  From  the  Effective  Date  through  the
earlier of (x) the Closing Date and (y) the Termination  Date, Kali and the Kali
Shareholders shall not, and shall cause Kali's directors,  officers,  employees,
agents and  Affiliates not to,  directly or indirectly,  solicit or initiate the
submission of proposals from, or solicit, encourage, entertain or enter into any
arrangement, agreement, letter of intent or understanding with, or engage in any
negotiations  with,  or  furnish  any  information  to,  any  Person  (including


                                       47


Perrigo),  other than PRI or any  representative(s)  or agent(s)  thereof,  with
respect to the direct or indirect  acquisition of all or any material portion of
the business,  operations or assets  (including any of the Leased Real Property)
of Kali or any of its (issued or  unissued)  capital  stock.  If Kali,  the Kali
Shareholders or any of their respective Affiliates,  during such period, receive
any offer or inquiry  relating to any such  acquisition,  or obtain  information
that such an offer or inquiry is likely to be made,  it/he will provide PRI with
immediate written notice thereof.

            6.15. COMMERCIALLY  REASONABLE EFFORTS TO CLOSE. Each of the Parties
shall  use  commercially  reasonable  efforts  to  satisfy,  or to  cause  to be
satisfied,  all conditions to such Party's  obligation to close the transactions
contemplated hereby that are reasonably within the control of such Party. If all
of the  conditions to a Party's  obligation to close  hereunder  shall have been
satisfied, such Party shall diligently proceed to close.


            6.16. FURTHER  ASSURANCES;  PERRIGO CLAIM.  From time to time before
and after the Closing Date, Kali and the Kali Shareholders, as applicable, shall
each execute and deliver all such  documents  and  instruments,  and do all such
acts, as PRI may  reasonably  request in order to convey to PRI the Kali Shares,
free and clear of all Liens,  and otherwise  carry out the intent of the Parties
under this Agreement.  Kali and the Kali Shareholders hereby represent that they
have delivered to PRI true and complete copies of all written correspondence and
provided true and accurate summaries of all oral  communications with Perrigo in
respect of its  purported  first  refusal  right,  the Option  Agreement and the
Perrigo Offer.  The Kali  Shareholders and Kali shall provide PRI, and PRI shall
provide the Kali  Shareholders'  Rep,  with prompt notice of any written or oral
communications  with Perrigo  regarding any claims or other  assertions  made by
Perrigo against any of them or any of their respective Affiliates and shall not,
without  the  prior  written  consent  of PRI  on  the  one  hand,  or the  Kali
Shareholders' Rep, on the other hand, make any communications,  written or oral,
to  Perrigo  regarding  any  matter  relating  to  this  Agreement,  the  Option
Agreement,  the Perrigo Offer or Perrigo's  purported first refusal right.  Kali
and  the  Kali  Shareholders  and  PRI  shall  cooperate,  as and to the  extent
reasonably  requested by the other  Party(ies),  in  connection  with any claim,
litigation or other proceeding asserted by any third parties (including Perrigo)
that seeks to enjoin,  delay or to  recover  monetary  damages in respect of the
transactions contemplated by this Agreement, and each Party shall be entitled to
participate  in  any  meetings  with  Perrigo  in  respect  of any  such  claim,
litigation or other  proceeding.  The Kali  Shareholders  shall cooperate in the
defense or  prosecution  of any such  third-party  claims,  litigation  or other
proceeding  and in good faith retain and furnish such records,  information  and
testimony, and attend such conferences,  discovery proceedings, hearings, trials
and appeals, as may be reasonably requested by PRI in connection therewith,  and
assist generally with the  establishment  of any and all reasonable  defenses to
any such third-party claim, litigation or proceeding. Prior to the Closing, each
of the Parties,  subject to the other provisions of this Section 6.16, shall use
commercially  reasonable  efforts to settle or otherwise resolve any claims made
(or that may be made) in connection with Perrigo's purported first refusal right
or the Perrigo Offer or to otherwise  enter into a reasonable  arrangement  with
Perrigo  in  connection  therewith  prior  to the  Closing,  including,  without
limitation,  meeting its  respective  obligations  as set forth in that  certain
letter agreement,  dated as of the Effective Date, executed and delivered by the
Parties;  PROVIDED,  HOWEVER,  that PRI shall  control any and all  attempts and
efforts to settle or otherwise address any such claims,  subject to the right of
the Kali  Shareholders'  Rep to fully  participate.  No  settlement  in  respect
thereof shall be entered into without the full participation and express written

                                       48


consent of PRI. Each of PRI, Kali and the Kali  Shareholders' Rep believes that,
based on the facts and  circumstances,  including  discussions  with their legal
counsel,  that the execution and delivery of this Agreement and the  performance
of the Parties' obligations  contemplated hereunder,  will not violate Perrigo's
purported right of first refusal.


            6.17. SUPPLEMENTAL  DISCLOSURE.  Each of the Parties  hereby  agrees
that, with respect to their respective  representations and warranties contained
in this  Agreement,  each such  Party  shall  have a  continuing  obligation  to
promptly  provide  detailed  disclosure to the other Parties with respect to any
matter  hereafter  arising or  discovered  that,  if existing or known as of the
Effective Date,  would have been required to be set forth on or described in the
schedules  hereto;  PROVIDED,  HOWEVER,  that none of such  disclosure  shall be
deemed to modify,  amend or supplement any of the representations and warranties
of the  disclosing  Party or any of the  schedules  hereto  as of the time  such
representations  and warranties  were initially  made,  unless the Party to whom
such  disclosure(s)  are made  shall have  consented  thereto  in  writing;  and
PROVIDED,  FURTHER, that such disclosure shall not, under any circumstances,  be
permitted to cure any breaches existing at the time that such representations or
warranties were initially made.


            6.18. LEASES.  (a) The Kali Shareholders shall cause VGS to, and VGS
shall,  enter into a lease agreement with PRI or Kali in respect of the Facility
(including the proposed  additional terms thereto),  in the form attached hereto
as Exhibit C, at the  Closing,  which  lease shall be for a term of at least two
years and  contain an  immediately  exercisable,  irrevocable  option for PRI to
purchase such Facility.

            (b)   Immediately  prior to  Closing,  VGS and Kali shall  terminate
that certain lease with respect to property  located in Piscataway,  New Jersey,
without further liability to Kali.


            6.19. VGS  LOAN.  At the Closing,  VGS shall execute and deliver the
VGS Note (which shall include the principal  amount of the  Post-Effective  Date
VGS Loan) to PRI on behalf of Kali  (which may be  assigned  to PRI) and execute
and deliver to the holder of the VGS Note a mortgage  on the  Facility to secure
the obligations under such Note.


            6.20. CONDUCT OF KALI BUSINESS  POST-CLOSING.  PRI shall, during the
period after the Closing Date through the  Subramanian  Termination  Date (or if
Mr.  Subramanian's  employment  shall be terminated  pursuant to Section  3.2.1,
3.2.2, 3.2.4 or 3.2.5 of the Subramanian Employment Agreement,  through the date
that is thirty (30) months from the Closing Date), use  commercially  reasonable
efforts to conduct the business of Kali in a manner  consistent  with the manner
in which Kali conducted the Kali Business  immediately  prior to the Closing and
to use  commercially  reasonable  efforts to (i) prevent the  occurrence  of any
Business  Interruption  Event, (ii) conduct  Biostudies with respect to products
and proposed  products as to which the conduct of Biostudies is reasonable under
the  circumstances  (it  being  hereby  acknowledged  by the  Parties  that  the
continued (or  non-continuance  of) employment of Mr.  Subramanian is a relevant
factor in determining what shall be reasonable) and (iii) file with or submit to
the FDA ANDAs with respect to any  products  and  proposed  products as to which
such filing or submissions  are reasonable  under the  circumstances;  PROVIDED,
that in no event shall PRI be deemed to have  breached this Section 6.20 if (and
to the extent) its actions or failure to act  resulted  from any act or omission


                                       49


of Mr.  Subramanian.  Mr.  Subramanian  shall  reasonably  cooperate with PRI to
facilitate PRI's compliance with this Section 6.20.


            7.    CERTAIN TAX MATTERS.
                  -------------------

            7.1   TAX INDEMNIFICATION. The Kali Shareholders hereby, jointly and
severally,  agree to defend,  indemnify  and hold harmless  Kali,  PRI and their
respective directors, officers, shareholders, agents, Affiliates, successors and
permitted assigns,  from and against,  and shall pay and reimburse the foregoing
Persons for, any and all losses, liabilities,  claims,  obligations,  penalties,
damages, costs and expenses (including all attorneys' fees and disbursements and
other costs  reasonably  incurred or sustained by an  Indemnitee  (as defined in
Section  11.3  hereof)  in  connection  with  the   investigation,   defense  or
prosecution of any such claim or any action or proceeding between the Indemnitee
and the  Indemnifying  Party (as defined in Section  11.3 hereof) or between the
Indemnitee  and any  third  party or  otherwise),  whether  or not  involving  a
third-party claim  (collectively,  "Losses"),  relating to or arising out of (i)
all Taxes of Kali due for all taxable  periods ending on or prior to the Closing
Date and the portion of the taxable  period  through the end of the Closing Date
for any taxable period that includes (but does not end on) the Closing Date (the
"Pre-Closing  Tax  Period");  (ii) all  Taxes of any  member  of an  affiliated,
consolidated, combined or unitary group of which Kali (or any predecessor) is or
was a member on or prior to the  Closing  Date,  including  pursuant to Treasury
Regulation Section 1.1502-6 or any analogous or similar Law; and (iii) all Taxes
of any Person (other than Kali) imposed on Kali as a transferee or successor, by
contract or pursuant to Law. The Kali Shareholders shall, jointly and severally,
reimburse  PRI for any  Taxes of Kali  that are the  responsibility  of the Kali
Shareholders pursuant to this Section 7.1 within fifteen (15) days after payment
of such Taxes by PRI or Kali.

            7.2   STRADDLE  PERIOD.  In the  case  of any  taxable  period  that
includes,  but does not end on, the  Closing  Date (a  "Straddle  Period"),  the
amount  of any  Taxes  based on or  measured  by  income  or  receipts  of Kali,
including  sales  and use  Taxes  for  the  Pre-Closing  Tax  Period,  shall  be
determined  based on an interim closing of the books as of the close of business
on the Closing Date and the amount of other Taxes of Kali, including real estate
Taxes,  for a Straddle Period that relate to the Pre-Closing Tax Period shall be
deemed to be the amount of such Tax for the entire Straddle Period multiplied by
a fraction,  the numerator of which is the number of days in the taxable  period
ending on the Closing Date and the  denominator  of which is the total number of
days in such Straddle Period.


            7.3   SECTION  338(H)(10)  ELECTION.  Each of the Kali  Shareholders
will join with PRI in taking or causing to be taken,  and shall take or cause to
be taken,  all actions  necessary and  appropriate to effect a timely and proper
election under Code Section 338(h)(10) and the Treasury Regulations  promulgated
thereunder (and any  corresponding  election under state,  local and foreign Tax
Laws) with respect to the purchase  and sale of the Kali Shares  hereunder  (the
"Section 338(h)(10) Election"). In particular, and without limitation, each Kali
Shareholder will execute and deliver to PRI a Form 8023, countersigned by a duly
authorized  officer of PRI (and any similar form required under state, local and
foreign  Tax laws) on or prior to the Closing  with  respect to Kali in order to
make the  Section  338(h)(10)  Election,  which  Form  8023 will be filed by PRI
promptly  after the Closing.  The Kali  Shareholders  and Kali shall include all
income,  gain, loss,  deduction or other Tax item(s)  resulting from the Section
338(h)(10)  Election on their  respective Tax Returns to the extent  required by


                                       50


applicable  Law and in  accordance  with the  allocations  of Purchase  Price as
determined pursuant to Section 7.4 hereof.  Subject to reimbursement pursuant to
Section 2.5 hereof, the Kali Shareholders shall also pay any Tax imposed on Kali
attributable to the making of the Section 338(h)(10) Election, including (a) any
Tax  imposed  under Code  Section  1374 and (b) any state,  local or foreign Tax
imposed on Kali's income or gains, and the Kali Shareholders shall indemnify PRI
and Kali against,  and pay or reimburse  them for, all Losses arising out of any
failure timely to pay any such Taxes.  Notwithstanding  anything to the contrary
contained in the immediately  preceding  sentence,  PRI shall pay, in accordance
with  Section  2.5  hereof,  to the Kali  Shareholders'  Rep (a) the New  Jersey
Corporate  Tax  Reimbursement  so as to enable the Kali  Shareholders  to pay on
behalf of Kali the amount of any New Jersey  Business  Corporation  Tax  imposed
upon Kali  resulting  from the deemed sales of its assets upon the making of the
Section 338(h)(10) Election, (b) the Transfer Tax Reimbursement, so as to enable
the  Kali  Shareholders  to pay  either  on  behalf  of Kali,  or on  their  own
collective behalf, the amount of such Taxes as are covered by such Reimbursement
and (c) the amount of the Second Level Gross-Up as that is  attributable  to the
New Jersey  Corporate  Tax  Reimbursement  and the Transfer  Tax  Reimbursement,
subject,  however,  to the right (as set forth in Section  2.5 hereof) of PRI to
pay the amounts described in clauses (a), (b) and (c) by offsetting against such
amounts  when  otherwise  due  an  equivalent  amount  of the  then  outstanding
principal amount of and/or accrued interest the VGS Note.


            7.4.  ALLOCATIONS  OF PURCHASE PRICE.  The Parties hereby agree that
the Purchase Price shall be allocated first among the assets of Kali as follows:
(i) first,  to equipment in an amount equal to  $2,650,000,  (ii) second,  in an
amount equal to, and in accordance  with, the tax adjusted bases  (determined as
of the Closing Date) of Kali's  remaining  tangible assets and (iii) third,  the
balance of the Purchase  Price shall be treated as having been paid and shall be
allocated  to assets that  qualify as  "amortizable  section  197  intangibles,"
including  "goodwill" and "going concern value," under Code Section 197 and that
are treated as capital  assets under Code Section 1221; it being intended by the
Parties that,  subject to  confirmation  with the independent  certified  public
accountant  of PRI, the  allocation of the Purchase  Price among the  respective
assets of Kali, as set forth in this Section 7.4, shall reflect the current fair
market  values of Kali's  assets as of the Closing  Date.  The  Gross-Up and the
Second Level  Gross-Up,  as calculated  under Section 2.5 hereof with respect to
Kali,  shall be  allocated  to such  assets of Kali as qualify  as  "amortizable
section 197 intangibles,"  including "goodwill" and "going concern value," under
Code Section 197 and that are treated as capital assets under Code Section 1221.
At such time as the Closing  Certificate  shall become final in accordance  with
Section 2.4(c) hereof, the independent  certified public accountant of PRI shall
provide  to PRI and  Kali a  completed  IRS Form  8883  (the  "Asset  Allocation
Statement Under Section 338"),  reflecting the allocation of the Purchase Price,
including the Gross-Up and the Second Level Gross-Up,  among the various Classes
of  Assets  (as set  forth in such  Form  8883) of Kali in  accordance  with the
principles  set forth in this Section 7.4. In addition to receiving its own Form
8883 from the independent public accountant of PRI, Kali shall receive from such
accountant  copies  of the Form 8883 to be filed by PRI,  and PRI shall  receive
from such accountant copies of the Form 8883 to be filed by Kali. The allocation
of the  Purchase  Price among the assets of Kali,  as set forth in the Form 8883
prepared by such  accountant,  shall be binding on the Parties  hereto,  and the
Parties  shall  not  take a  position  inconsistent  therewith  for  income  tax
purposes.  For purposes of determining  the  "aggregate  deemed sales price" and
"adjusted  grossed-up  basis" for  purposes of Code Section 338 and the Treasury
Regulations,  the Purchase Price allocated to, and treated as the  consideration

                                       51


paid under,  this Section 7.4 for the Kali Shares shall be grossed up to include
the respective  Liabilities (as determined  under Federal income tax principles)
of Kali as of the Closing Date; however,  for purposes of allocation of Purchase
Price,  the value of the Warrants shall be zero. PRI shall attach such Form 8883
to a timely-filed consolidated Federal income Tax Return (and, where applicable,
its state and local  income tax  returns) for its taxable year in which the sale
occurs,  and Kali shall attach its respective Form 8883 to its respective timely
filed final  Federal  income tax return  (I.E.,  IRS Forms  1120-S)  and,  where
applicable,  its state and local income tax returns, for its taxable year ending
on the Closing Date. Any  adjustments to the Purchase Price required  hereunder,
including any  adjustments  under Sections 2.2(d) and 2.4 hereof with respect to
the Reduction  Amount,  shall be applied,  on a  "dollar-for-dollar"  basis,  to
decrease the amount of the Purchase  Price  allocated to and treated as paid for
Kali's  "amortizable  section 197 intangibles" that constitute capital assets as
described above.  Any Initial ANDA Payment,  Second ANDA payment or Market Price
Payment(s)  shall be  allocated  to and treated as paid for Kali's  "amortizable
section 197  intangibles"  that  constitute  capital assets as described  above,
except to the  extent  that any such  Payments  are  required  to be  treated as
imputed  interest  under  the  Code,  includible  in  the  income  of  the  Kali
Shareholders  as interest  income and  deductible by PRI as interest  expense in
accordance with the Code. If and to the extent that any amount  allocated to any
asset is increased or decreased after the taxable year in which the sale occurs,
any affected Party shall file a supplemental  Form 8883 to report such change in
accordance  with  the  Treasury  Regulations  under  Code  Section  338  and the
instructions  to such Form and shall  attach  such  supplemental  Form 8883 to a
timely filed Federal income tax return (and, where  applicable,  state and local
income tax returns)  for which the  increase or decrease is taken into  account.
Prior to filing any such  supplemental  Form 8883,  each Party shall provide the
other  Parties  hereto with a draft of such Form 8883 for their review and, upon
the filing of such  supplemental  Form 8883,  each Party shall provide the other
Parties hereto with a copy of such Form, as filed.

            7.5   S CORPORATION STATUS. Kali and the Kali Shareholders shall not
revoke  Kali's  election to be taxed as an S  corporation  within the meaning of
Code Sections 1361 and 1362.  Kali and the Kali  Shareholders  shall not take or
allow any action to be taken (or fail to take any action)  that would  result in
the termination of Kali's status as a validly electing S corporation  within the
meaning of Code Sections 1361 and 1362.


            7.6   TAX  PERIODS  ENDING ON OR BEFORE THE CLOSING DATE.  PRI shall
prepare or cause to be prepared  and file all Straddle  Period Tax Returns.  PRI
shall  obtain the prior  written  consent of the Kali  Shareholders'  Rep (which
consent shall not be  unreasonably  withheld or delayed) to each such Tax Return
described in the immediately preceding sentence prior to its filing.


            7.7   COOPERATION ON TAX MATTERS.
                  ---------------------------

            (a)   PRI,  Kali and the Kali Shareholders shall cooperate fully, as
and to the extent requested by any other Party, in connection with the filing of
Tax  Returns  pursuant  to this  Section 7 and any  audit,  litigation  or other
proceeding with respect to Taxes.  Such cooperation  shall include the retention
and (upon the other Party's  request) the  provision of records and  information
that are reasonably  relevant to any such audit,  litigation or other proceeding
and making employees or representatives available on a mutually convenient basis
to provide  additional  information  and  explanation of any materials  provided


                                       52


hereunder.  PRI (after the  Closing)  agrees to (i) retain all books and records
with  respect to Tax matters  pertinent to Kali  relating to any taxable  period
beginning before the Closing Date until the expiration of the applicable statute
of  limitations  of the  respective  taxable  periods and comply with all record
retention  agreements  entered into with any Taxing  Authority and (ii) give the
Kali   Shareholders'  Rep  reasonable  written  notice  prior  to  transferring,
destroying  or  discarding   any  such  books  and  records  and,  if  the  Kali
Shareholders'  Rep so  requests  in  writing,  PRI or Kali shall  allow the Kali
Shareholders' Rep to take possession of such books and records.

            (b)   PRI and the Kali  Shareholders  further agree, upon request of
the other  Party(ies),  to use  their  reasonable  best  efforts  to obtain  any
certificate or other document from any  Governmental  Authority or Person as may
be  reasonably  necessary to mitigate,  reduce,  defer or eliminate any Tax that
could  otherwise  be  imposed   (including  with  respect  to  the  transactions
contemplated hereby).


            7.8   CERTAIN  TAXES.  Subject to Section 2.5 hereof,  all transfer,
documentary,  real property  transfer,  sales,  stamp,  registration and similar
Taxes and fees  (including  any penalties  and interest)  incurred in connection
with this  Agreement  shall be paid by the Kali  Shareholders  when due, and the
Kali  Shareholders  will,  at their own  expense,  timely  prepare  and file all
necessary Tax Returns and other documentation with respect to all such transfer,
documentary,  sales, use, stamp,  registration and other similar Taxes and fees.
If required by applicable  Law, PRI will, and will cause its Affiliates to, join
in the execution of any such Tax Returns and other documentation.


            8.   CONDITIONS  TO  OBLIGATION OF PRI TO CLOSE.  The  obligation of
PRI to  consummate  the  transactions  under  this  Agreement  is subject to the
satisfaction  of each of the  following  conditions  on or prior to the  Closing
Date,  any one or more of which (other than  Sections 8.7 and 8.8 hereof) may be
waived in writing by PRI, in its sole discretion:


            8.1   AGREEMENTS  AND  CONDITIONS.  Kali and the  Kali  Shareholders
shall have complied with and performed in all material  respects all agreements,
covenants  and  conditions  on their parts to be complied  with and performed in
connection with this Agreement on or before the Closing Date.


            8.2   REPRESENTATIONS   AND  WARRANTIES.   The  representations  and
warranties of Kali and the Kali  Shareholders  contained in this Agreement shall
be true and correct in all material  respects,  other than such  representations
and   warranties   that   contain   materiality   or   knowledge   standards  of
qualifications,  which representations and warranties shall be true and complete
in all respects and without regard to knowledge,  on and as of the Closing Date,
with the same force and effect as though such representations and warranties had
been made on and as of the Closing Date.


            8.3   NO  LEGAL  PROCEEDINGS.  No suit,  action or  proceeding by or
before  any  Governmental  Authority  shall  have  been  instituted  or  overtly
threatened to restrain or prohibit the transactions  contemplated hereby and, as
of the  Closing  Date,  there  shall be no action by or before any  Governmental
Authority or any suit,  action or proceeding  pending or  threatened  against or


                                       53


affecting Kali that involves a demand for any judgment or Liability,  whether or
not covered by insurance,  that could  reasonably be expected to have a Material
Adverse  Effect;  PROVIDED,  that the Parties hereby  acknowledge and agree that
those  three (3) actual or  threatened  Paragraph  IV  Litigations  set forth on
SCHEDULE  3.15 hereto  shall be deemed to not be  reasonably  expected to have a
Material Adverse Effect.


            8.4   KALI  SHAREHOLDERS' AND OFFICERS' CERTIFICATE.  PRI shall have
received a  certificate,  dated the Closing  Date,  executed by each of the Kali
Shareholders and an authorized  executive officer of Kali to the effect that the
conditions  set  forth in  Sections  8.1,  8.2 and 8.3  hereof  shall  have been
satisfied.

            8.5   PERRIGO   RESOLUTION.   Following  the  performance  of  PRI's
obligations  under Section 6.16 hereof,  PRI shall be reasonably  satisfied that
there is no  significant  risk of any material  Liability to it, at or following
the Closing,  relating to Perrigo's purported first refusal right or the Perrigo
Offer,  which  satisfaction  may include a waiver or release by Perrigo,  or any
appropriate declaratory or other judgment or order in respect thereof.

            8.6 DEATH OR DISABILITY OF MR.  SUBRAMANIAN.  Mr.  Subramanian shall
not have died or become permanently mentally or physically disabled.

            8.7   ISRA CLEARANCE.  Kali shall have delivered to PRI satisfactory
evidence that it has obtained ISRA Clearance.

            8.8   GOVERNMENTAL APPROVALS. Any applicable waiting period required
in respect of the transactions  contemplated hereby under the HSR Act shall have
expired or been terminated without adverse action by any Governmental  Authority
with respect  thereto;  and no  injunction or decree  prohibiting  or materially
restricting or delaying the consummation of the transactions contemplated hereby
shall have been issued by any Governmental Authority and remain in force.

            8.9   SECRETARY'S   CERTIFICATE.   PRI   shall   have   received   a
certificate,  dated  the  Closing  Date,  executed  by the  Secretary  of  Kali,
certifying the  incumbency and signature of each officer of Kali,  authorized to
act on behalf of Kali, in connection with the transactions  contemplated  hereby
and  attaching  and  certifying  as  true  and  complete   copies  of  the  Kali
Organizational  Documents,  each as may have been amended up through the Closing
Date.

            8.10. CERTIFICATE  OF STATUS.  PRI shall have received a certificate
from the  Secretary  of State of the State of New Jersey  stating  that Kali has
filed its most recent annual report,  has not filed a certificate of dissolution
or withdrawal and is in good standing in such jurisdiction

            8.11. CLOSING  DELIVERIES.  PRI shall have received,  at or prior to
the Closing, all such agreements, instruments and certificates required pursuant
to Sections 2.1 and 2.3(c) hereof.

            8.12. IP  RELEASES;   EMPLOYMENT  REAFFIRMATIONS.   PRI  shall  have
received the IP Releases and  Employment  Reaffirmations,  duly  executed by the
parties thereto.

                                       54



            9.    CONDITIONS TO OBLIGATIONS OF KALI AND THE KALI SHAREHOLDERS TO
CLOSE.  The  obligations  of Kali and the Kali  Shareholders  to consummate  the
transactions under this Agreement are subject to the satisfaction of each of the
following  conditions on or prior to the Closing Date,  any one or more of which
(other  than  Section  9.5  hereof)  may  be  waived  in  writing  by  the  Kali
Shareholders' Rep, in his sole discretion:


            9.1   AGREEMENTS  AND  CONDITIONS.  PRI shall have complied with and
performed in all material  respects all agreements,  covenants and conditions on
its part to be complied with and performed in connection  with this Agreement on
or before the Closing Date.


            9.2   REPRESENTATIONS   AND  WARRANTIES.   The  representations  and
warranties of PRI contained in this Agreement  shall be true and complete in all
material respects,  other than such  representations and warranties that contain
materiality or knowledge standards of qualifications,  which representations and
warranties  shall be true and  correct in all  respects  and  without  regard to
knowledge,  on and as of the  Closing  Date,  with the same  force and effect as
though  such  representations  and  warranties  had  been  made on and as of the
Closing Date.

            9.3   NO  LEGAL  PROCEEDINGS.  No suit,  action or  proceeding by or
before  any  Governmental  Authority  shall  have  been  instituted  or  overtly
threatened  to  restrain  or  prohibit  the  transactions  contemplated  hereby;
PROVIDED,  that Kali and the Kali  Shareholders  may not invoke this  condition,
and, in the absence of any other such suit, action or proceeding, such condition
shall  be  deemed  to be  satisfied  notwithstanding  that  Perrigo  shall  have
instituted or threatened a suit involving the Option Agreement and its purported
right of first refusal so long as PRI shall be performing its obligations  under
Section 6.16 hereof.

            9.4   OFFICER'S   CERTIFICATE.  The  Kali  Shareholders  shall  have
received a  certificate,  dated the  Closing  Date,  executed  by an  authorized
executive officer of PRI to the effect that the conditions set forth in Sections
9.1, 9.2 and 9.3 hereof shall have been satisfied.

            9.5   GOVERNMENTAL APPROVALS. Any applicable waiting period required
in respect of the transactions  contemplated hereby under the HSR Act shall have
expired or been terminated without adverse action by any Governmental  Authority
with respect  thereto;  and no  injunction or decree  prohibiting  or materially
restricting the consummation of the transactions  contemplated hereby shall have
been issued by any Governmental Authority and remain in force.

            9.6   CLOSING DELIVERIES. The Kali Shareholders shall have received,
at or prior to the Closing,  the Cash Purchase Price, the Warrant  Agreement and
the other agreements and instruments required pursuant to Section 2.3(b) hereof.

            10.   TERMINATION.


            10.1. TERMINATION.   This   Agreement  may  be  terminated  and  the
transactions  contemplated  hereby  may be  abandoned  at any time  prior to the
Closing Date (the "Termination Date") only as follows:

            (a) by mutual  written  agreement of PRI and the Kali  Shareholders'
Rep;

                                       55


            (b)   by  PRI (i) upon a  breach  of any  representation,  warranty,
covenant  or  agreement  of Kali or the  Kali  Shareholders  set  forth  in this
Agreement such that either (or both) of the conditions set forth in Sections 8.1
or 8.2  hereof  would not be  satisfied;  PROVIDED,  HOWEVER,  that the right to
terminate this Agreement  pursuant to this Section 10.1(b)(i) shall be available
to PRI only after Kali shall have received  written  notice of such breach and a
reasonable  opportunity (of not less than twenty (20) Business Days) to cure (to
the extent curable) the same or (ii) subject to Section 10.3(a)(iii) hereof, not
earlier  than April 30, 2004,  upon not less than five (5) Business  Days' prior
written notice to Kali that PRI believes that the condition to its obligation to
close set forth in Section 8.5 hereof may not be satisfied;

            (c)   by   the  Kali   Shareholders'   Rep  upon  a  breach  of  any
representation,  warranty,  covenant  or  agreement  of PRI  set  forth  in this
Agreement such that either (or both) of the conditions set forth in Sections 9.1
or 9.2  hereof  would not be  satisfied;  PROVIDED,  HOWEVER,  that the right to
terminate this Agreement  pursuant to this Section 10.1(c) shall be available to
the Kali  Shareholders' Rep only after PRI shall have received written notice of
such breach and a reasonable  opportunity (of not less than twenty (20) Business
Days) to cure (to the extent curable) the same; or

            (d)   by the Kali  Shareholders'  Rep or PRI, at any time after July
31,  2004,  if the Closing  shall not have  occurred on or before July 31, 2004;
PROVIDED,  HOWEVER,  that the right to terminate this Agreement pursuant to this
Section  10.1(d)  shall not be available to PRI, in the case of a breach of this
Agreement by PRI, or to Kali, in the case of a breach of this Agreement by Kali,
where such breach has been a principal  cause of, or resulted in, the failure of
the Closing to occur by such date.

            10.2. EFFECT  OF  TERMINATION.  In the event that this  Agreement is
terminated  pursuant to the  provisions of Section 10.1 hereof,  this  Agreement
shall  forthwith  become  void and of no force and effect and there  shall be no
liability  or  obligation  on the part of the  Parties  hereto  (or any of their
respective officers,  directors,  employees, agents or Affiliates),  except that
(x) the  provisions of this Section 10.2,  the provisions of Sections 6.6, 10.3,
11 and 12 hereof shall continue to apply following any such  termination and (y)
subject to Section 10.3 hereof, nothing contained herein shall relieve any Party
from  liability  for the breach of any of his/its  representations,  warranties,
covenants or agreements  contained in this Agreement prior to such  termination;
provided,  that the maximum  liability of Kali and the Kali  Shareholders  for a
termination by PRI pursuant to Section  10.1(b)(i)  hereof shall be $750,000 and
the maximum  liability of PRI for a termination  by the Kali  Shareholders'  Rep
pursuant to Section 10.1(c) hereof shall be $750,000.


            10.3. LIQUIDATED DAMAGES AND EXPENSES.
                  -------------------------------

            (a)   LIQUIDATED DAMAGES AND PERCENTAGE AMOUNT.
                  ----------------------------------------

                  (i) In the event that PRI shall determine not to continue with
the  transactions  contemplated  hereby or shall  terminate  this  Agreement  or
otherwise to terminate  negotiations,  other than as expressly permitted by (and
in accordance with) Section 10.1 hereof, PRI shall be required to pay to Kali in
accordance  with Section  10.3(b)  hereof the sum of  $15,000,000,  which amount
shall be paid, at PRI's option,  by delivering to Kali $15,000,000 in cash or by
(x) delivering to Kali $5,000,000 in cash and (y) immediately  forgiving the PRI


                                       56


Loan in whole, in each case as liquidated damages and the sole remedy, either of
which  amount  PRI,  Kali  and  the  Kali  Shareholders  hereby  acknowledge  is
reasonable and shall not constitute a penalty.  Such amount shall not, except as
provided in this Section 10.3(a)(i), be subject to offset or reduction by PRI.

                  (ii)  In the event  that Kali or any of the Kali  Shareholders
shall  determine not to continue with the  transactions  contemplated  hereby or
shall  terminate  this Agreement or otherwise to terminate  negotiations,  other
than as expressly  permitted by (and in  accordance  with)  Section 10.1 hereof,
Kali and the Kali Shareholders shall, jointly and severally,  be required to pay
to PRI in accordance  with Section 10.3(b) hereof the sum of $4,000,000 in cash,
as liquidated  damages and,  subject to subsection (iv) below,  the sole remedy,
which  amount  PRI,  Kali  and  the  Kali  Shareholders  hereby  acknowledge  is
reasonable and shall not constitute a penalty.  Such amount shall not be subject
to offset or reduction by Kali or the Kali Shareholders.

                  (iii)  In the event that PRI shall  terminate  this  Agreement
pursuant to Section 10.1(b)(ii)  hereof,  subject to its compliance with Section
6.16 hereof,  PRI shall  immediately  (x) forgive  $5,000,000 of the outstanding
principal  of the PRI Loan and (y) extend  the  maturity  date of the  remaining
$5,000,000  principal  amount  of such  Loan  until  five (5)  years  after  the
effective date of such termination, with interest accruing but not payable until
maturity,  and with a provision  for the payment of such  obligation  by Kali in
cash  or  through  its  rendering  of  services  to PRI as may be  mutually  and
reasonably  agreed to by PRI and Kali.  In  addition,  PRI  shall,  upon  Kali's
written request,  within two (2) months of such termination,  loan to Kali up to
an additional $7,500,000,  bearing interest at the same rate as the PRI Loan and
with a maturity  date five (5) years from the date that such loan is made,  with
interest  accruing but not payable  until  maturity and with a provision for the
payment of such  obligation by Kali in cash or through its rendering of services
to  PRI as may be  mutually  and  reasonably  agreed  to by PRI  and  Kali  (the
"Additional  Loan").   Notwithstanding  the  foregoing,  if  Kali  or  the  Kali
Shareholders shall close a transaction of a type contemplated by subsection (iv)
below with Perrigo (or any of its  Affiliates)  within twelve (12) months of the
effective date of termination pursuant to this subsection (iii), then the unpaid
balance of each of the PRI Loan and any  Additional  Loan  shall  become due and
payable  (including all accrued and unpaid interest thereon) in full immediately
upon such closing.  PRI, Kali and the Kali Shareholders  hereby acknowledge that
the forgiveness of $5,000,000 of the principal of the PRI Loan, the extension of
$5,000,000  of the  principal  of the PRI Loan and the making of the  Additional
Loan are the sole remedy and are  reasonable and shall not constitute a penalty.
Such  amount  shall not,  except as provided in this  Section  10.3(a)(iii),  be
subject to offset or reduction by PRI.

                  (iv)  If,  within  six  (6)  months  following  a  termination
pursuant  to Section  10.1(b)(i)  hereof or within  nine (9) months  following a
termination   pursuant  to  Section   10.3(a)(ii)   hereof,  Kali  or  the  Kali
Shareholders  shall enter into any  agreement  involving  the sale (or series of
related sales) of Kali (whether  through a sale of all or  substantially  all of
the assets or capital  stock of Kali,  including by a merger,  consolidation  or
otherwise)  to or with a Person that is not an Affiliate or Associate of Kali or
any Kali  Shareholder as of the Effective  Date,  then,  subject to Section 11.7
hereof,  Kali and the Kali  Shareholders  shall,  upon the  consummation of such
transaction, jointly and severally, be required to pay to PRI in accordance with

                                       57


Section 10.3(b)  hereof,  in cash, the sum equal to 100% of the amount by which,
if any,  the  aggregate  consideration  amount  received  by Kali  and the  Kali
Shareholders  (and their  Affiliates  and  Associates)  in connection  with such
transaction  (subject to subsequent  modification  to reflect any purchase price
adjustments and indemnification payments or any other provision that reduces the
consideration  retained by Kali or the Kali Shareholders  without any offsetting
benefit to them)  exceeds the Cash  Purchase  Price (the  "Percentage  Amount"),
less,  in respect of a  termination  pursuant  to  Section  10.3(a)(ii)  hereof,
$4,000,000 (if, but only if, the Percentage Amount shall exceed $4,000,000). The
Kali Shareholders and Kali shall, in any definitive  agreement setting forth the
terms of a  transaction  that  would give rise to the  payment  of a  Percentage
Amount,  negotiate and provide for terms so that the Person acquiring Kali shall
be required to pay the Percentage Amount if the Kali  Shareholders  breach their
obligations pursuant to this Section 10.3(b)(iv) or Section 10.3(b) hereof.

                  (v)  Upon the payment of a liquidated  damages amount (and, if
applicable,  the Percentage  Amount) due under this Section 10.3(a) hereof,  all
indemnification  obligations  of  such  payor  under  Section  11  hereof  shall
immediately terminate.

            (b)   PAYMENT.  Any liquidated  damage payments  required to be made
pursuant  to  Sections  10.3(a)  or 6.5  hereof  shall  be made as  promptly  as
practicable,  but not later than ten (10)  Business  Days after the event giving
rise to the applicable liquidated damages. The Percentage Amount, if applicable,
shall  be paid on the  closing  date of any  transaction(s)  giving  rise to the
payment of the Percentage Amount. The liquidated damages and, if applicable, the
Percentage Amount, shall be paid by wire transfer of immediately available funds
to an account  designated by the  Party(ies) to which it is owed (the  "Payee").
The  Percentage  Amount  shall be paid in cash,  and if there  shall be non-cash
consideration  paid in any transaction  giving rise to the obligation to pay the
Percentage  Amount,  then such  consideration  shall be  calculated  at its fair
value.

            (c)   COLLECTION  EXPENSES AND INTEREST.  In the event that the Kali
Shareholders  or PRI,  as the case may be (the  "Payor")  shall  fail to pay the
applicable  liquidated damages or the Percentage Amount (if applicable) when due
in accordance with Section 10.3(b) hereof, then the Payor shall additionally pay
all costs  and  expenses  actually  incurred  by the  Payee  and its  Affiliates
(including fees and expenses of legal counsel) in connection with the collection
of such liquidated damages and the Percentage Amount (if applicable),  and shall
pay interest on such unpaid  liquidated  damages and the  Percentage  Amount (if
applicable), commencing on the date that such damages or Amount became due until
payment  in full  thereof,  at a rate  equal  to the rate of  interest  publicly
announced by the Chase  Manhattan  Bank, from time to time, in New York City, at
such Bank's base rate plus two (2%) percent.


            11.   SURVIVAL; INDEMNIFICATION.
                  -------------------------


            11.1. SURVIVAL   OF   REPRESENTATIONS,   WARRANTIES  AND  COVENANTS.
Notwithstanding  any right of PRI to  investigate  the business and condition of
Kali,  PRI  shall be  entitled  to rely  upon the  representations,  warranties,
covenants and agreements of Kali and the Kali Shareholders.  All representations
and warranties  contained in this Agreement (including the Schedules hereto) and
in all  certificates  (including  the Estimated  Closing  Certificate)  required
hereby to be  delivered  shall be deemed to be  representations  and  warranties
hereunder and shall survive the Closing (or, if no Closing,  the Effective Date)


                                       58


for a period ending nineteen (19) months from the Closing Date,  except that the
representations and warranties  contained in (i) Sections 3.13 (Tax Matters) and
Section 4.7  (Eligible S  Corporation  Shareholder)  hereof shall  survive until
thirty (30) days after expiration of the applicable statute of limitations, (ii)
Section 3.14  (Environmental  Matters)  hereof shall  survive  until thirty (30)
months from the Closing Date and (iii)  Sections 3.3  (Capitalization;  Options;
Shareholder   Rights),   4.1  (Authority  to  Execute  and  Perform  Agreements;
Enforceability)  and 4.2 (Title to Kali Shares) hereof shall survive the Closing
indefinitely. As of the respective expiration dates applicable thereto set forth
above,  such  representations  and warranties  shall expire and be of no further
force and effect, except that any representation or warranty that is the subject
of a claim or dispute that was properly  asserted in writing in accordance  with
this Section 11 prior to the  applicable  expiration  date provided  above shall
survive  with  respect  to such  claim or  dispute  until the  final  resolution
thereof.  The covenants  and  agreements  made by the Parties in this  Agreement
shall survive the Closing Date, without limitation, unless otherwise provided in
such covenant or agreement; PROVIDED, HOWEVER, that the covenants and agreements
contained  in Section 6.1 hereof shall  survive the Closing for a period  ending
nineteen (19) months from the Closing Date and the covenants and  agreements set
forth in Sections 6.2, 6.8, 6.14,  6.15, 6.17 and 6.18 hereof shall terminate on
the  Closing  Date.  Any  limitation  or  qualification  set  forth  in any  one
representation  and  warranty  contained in Sections 3, 4 and 5 hereof shall not
limit or  qualify  any  other  representation  and  warranty  contained  in such
Sections.  Each  representation  and warranty included in Sections 3, 4 and 5 is
independent and shall be interpreted without regard to any other  representation
or  warranty  contained  in Sections 3, 4 and 5  (including  any more  inclusive
representation or warranty).


            11.2. INDEMNIFICATION.
                  ---------------

            (a)   KALI'S AND KALI SHAREHOLDERS' AGREEMENTS TO INDEMNIFY. Subject
to the other  provisions  of this  Section  11, Kali (but only if there is not a
Closing) and the Kali  Shareholders  (but,  subject to Sections  10.3(a)(ii) and
(iv) and  10.3(b)  hereof,  only if  there  is a  Closing)  shall,  jointly  and
severally,  indemnify,  defend and hold harmless PRI, its Affiliates  (including
Kali  if  there  is  a  Closing)  and  their  respective  directors,   officers,
shareholders,  agents,  successors and permitted  assigns from and against,  and
shall pay and  reimburse  the  foregoing  Persons  for,  (x) any and all  Losses
relating  to or arising  out of the breach (or  alleged  breach if asserted by a
third  party)  of (i) any  representation  or  warranty  of any such  Party(ies)
contained  in this  Agreement  or (ii) any  covenant or agreement of any of such
Party(ies)  contained in this  Agreement  and (y) fifty (50%) percent of any and
all Losses relating to Environmental Claims at the Facility  attributable to the
time(s) prior to its occupancy by Kali (the "Pre-Occupancy  Losses");  PROVIDED,
that, if the  representations  and  warranties  contained in Section 3.14 hereof
relating to  Environmental  Claims at the Facility  attributable  to the time(s)
prior to its  occupancy  by Kali are not correct in any  material  respect,  one
hundred  (100%)  percent  of any and all of the  Pre-Occupancy  Losses  shall be
subject to  indemnification;  and  PROVIDED,  FURTHER,  that one hundred  (100%)
percent of all Losses,  including the Pre-Occupancy  Losses, shall be applied to
determine  whether the  Deductible  (as defined  hereafter) has been met. If the
aggregate of Losses for all indemnification  claims would exceed the Deductible,
all Losses  (other  than the  Pre-Occupancy  Losses),  on the one hand,  and the
Pre-Occupancy  Losses  alone,  on  the  other  hand,  shall  be  applied  to the
Deductible on a PRO RATA basis, based on the amounts of such respective Losses.

                                       59


            (b)   PRI'S  GENERAL  AGREEMENT TO  INDEMNIFY.  Subject to the other
provisions  of this Section 11, PRI shall  indemnify,  defend and hold  harmless
Kali  (but  only  if  there  is  not  a  Closing)  and  the  Kali   Shareholders
(irrespective  of whether  there is a Closing) and their  respective  directors,
officers,  shareholders,  agents,  successors,  heirs,  legal  beneficiaries and
permitted  assigns from and against,  and shall pay and  reimburse the foregoing
Persons  for,  any and all Losses  relating  to or arising out of the breach (or
alleged  breach  if  asserted  by a third  party) of (i) any  representation  or
warranty of PRI contained in this  Agreement,  (ii) any covenant or agreement of
PRI  contained in this  Agreement  or (iii)  subject to the  correctness  of the
representations  and  warranties  of Kali  and the Kali  Shareholders  contained
herein, the operation of the business of Kali after the Closing Date.

            (c)   PERRIGO MATTER. Prior to the Closing, subject to Sections 6.16
and  10.3(a)(v)  hereof,  PRI  shall  pay to or  reimburse  Kali and  each  Kali
Shareholder  for all legal costs and expenses  reasonably  incurred by them, and
any settlement  amounts  effected by PRI,  arising out of any claims or lawsuits
asserted by Perrigo  relating to its purported first refusal right,  the Perrigo
Offer or any  purported  violation  thereof.  If (but only if) the Closing shall
occur,  PRI shall,  subject to Section 6.16 hereof,  indemnify,  defend and hold
harmless the Kali Shareholders from and against, and pay and reimburse them for,
all Losses incurred by them in connection  with any claims or lawsuits  asserted
by Perrigo  relating to its purported first refusal right,  the Perrigo Offer or
any purported violation thereof.

            (d)   TAX TREATMENT OF CERTAIN PAYMENTS. Kali, the Kali Shareholders
and PRI agree to treat any payments made under this Section 11 and Sections 6.5,
6.13(e) and 7 hereof as adjustments to the Purchase Price for Federal, state and
local income tax purposes.


            11.3. PROCEDURES FOR INDEMNIFICATION.
                  ------------------------------

            (a)   If any Party(ies) (the "Indemnitee") shall receive notice of a
claim or the  commencement of any action or proceeding with respect to which the
other  Party(ies)  is obligated to provide  indemnification  (the  "Indemnifying
Party") pursuant to Sections 11.2(a),  11.2(b) or 11.2(c) hereof, the Indemnitee
shall give the  Indemnifying  Party written  notice  thereof within a reasonable
period of time following the  Indemnitee's  receipt of such notice.  Such notice
shall  describe  the claim in  reasonable  detail and shall  indicate the amount
(estimated,  if appropriate) of the Losses that have been or may be sustained by
the  Indemnitee.  The  failure to so provide  such  notice  shall not affect the
Indemnifying  Party's  obligations  hereunder,  unless such Party is  materially
prejudiced as a result thereof. The Indemnifying Party may, subject to the other
provisions  of  this  Section  11.3,  settle,  compromise  or  defend,  at  such
Indemnifying  Party's own expense and by such Indemnifying  Party's own counsel,
any such matter involving the asserted liability of the Indemnitee in respect of
a third-party claim. If the Indemnifying Party shall elect to settle, compromise
or defend such asserted liability, it shall, within thirty (30) days (or sooner,
if the nature of the asserted  liability so requires),  notify the Indemnitee of
its intention to do so and the Indemnitee  shall  reasonably  cooperate,  at the
request and reasonable  expense of the Indemnifying  Party, in the compromise or
settlement of, or defense against,  such asserted  liability.  In respect of any
Environmental  Claims,  the  Indemnifying  Party  shall  conduct and control any
investigation and remediation of such Environmental Claims subject to reasonable
consultation  with and the participation of the Indemnitee;  PROVIDED,  HOWEVER,
that the  Indemnitee  shall have the right to  reasonably  approve  the  defense
counsel  representing  the  Indemnifying  Party  in  any  Environmental  Matter;


                                       60


PROVIDED,  FURTHER,  that, if the Kali  Shareholders'  Rep shall (or PRI, if the
Kali  Shareholders'  Rep shall not)  conduct or control  the  investigation  and
remediation in response to an indemnifiable  claim relating to any Environmental
Matter,  such  investigation  and remediation shall be without prejudice to such
Party's  rights to  indemnification  or  contribution  from third  parties.  The
Indemnifying  Party shall not be released  from any  obligation to indemnify the
Indemnitee  hereunder  with  respect to such  asserted  claim  without the prior
written consent of the Indemnitee,  unless the Indemnifying  Party shall deliver
to the Indemnitee a duly executed  agreement settling or compromising such claim
with no monetary liability to, or injunctive relief against,  the Indemnitee and
a complete release of the Indemnitee with respect thereto, which agreement shall
not limit or impair  the  Indemnitee's  ability  to conduct  its  business.  The
Indemnifying  Party  shall  have the  right,  except as  provided  below in this
Section  11.3,  to conduct and control the defense of any  third-party  claim or
action made for which it has been provided notice hereunder.  All costs and fees
incurred  with  respect  to any such  claim  shall be borne by the  Indemnifying
Party.  The Indemnitee  shall have the right to participate in, but not control,
at its own expense,  the defense,  compromise  or  settlement of any such claim;
PROVIDED,  HOWEVER, that if the Indemnitee and the Indemnifying Party shall have
conflicting or different claims or defenses,  then the Indemnifying  Party shall
not have control of such  conflicting  or  different  claims or defenses and the
Indemnitee  shall be  entitled to appoint a separate  counsel  (but only one (1)
counsel for such  Indemnitee  and any related  Indemnitees)  for such claims and
defenses, at the cost and expense of the Indemnifying Party; PROVIDED,  FURTHER,
that if the  Indemnifying  Party  shall not  assume  and  pursue in a timely and
diligent  manner  the  settlement  or  defense  of any  third-party  claim,  the
Indemnifying  Party shall cede control of such claim and the Indemnitee shall be
entitled to appoint a counsel of its choice for such  defense,  at the sole cost
and expense of the Indemnifying Party. If the Indemnifying Party shall choose to
defend any claim, the Indemnitee shall make available to the Indemnifying  Party
any books,  records or other  documents  within its control that are  reasonably
required for such defense.  If one or more of the Kali  Shareholders  shall seek
indemnification   hereunder,  then  such  Indemnitee(s)  shall,  unless  clearly
impracticable,  consolidate  any claims or matters  relating to  indemnification
into one proceeding, which, in accordance with Section 12.11(a) hereof, shall be
controlled by the Kali Shareholders' Rep.


            11.4. LIMITATIONS.
                  -----------

            (a)   Notwithstanding  any provision contained in this Section 11 to
the  contrary,  no  Indemnitee  shall  be  entitled  to  assert  any  claim  for
indemnification  in  respect  of  breach(es)  of  representations,   warranties,
covenants and  agreements  under  Sections  11.2(a) or 11.2(b) hereof until such
time as all claims for indemnification  hereunder (including those under Section
7 hereof) by such Person (and all related  Indemnitees)  shall exceed $4,000,000
(the  "Deductible"),  after  which  the  amount  of all  claims in excess of the
Deductible  (excluding the Deductible)  shall be recoverable in full;  PROVIDED,
HOWEVER,  that the  aggregate  dollar  amount of PRI's  individual  and the Kali
Shareholders' aggregate  indemnification  obligations hereunder shall not exceed
$32,500,000  (the "Claims  Limitation"),  except (i) if the  Indemnifying  Party
shall  have  made any  representation  or  warranty  contained  herein  that was
fraudulent  or (ii) for breaches of Sections 3.3,  3.13(l),  4.2, 4.7, 6.4, 6.5,
6.9 and 6.10  hereof,  in either of which case and  subject to the terms of such
Sections,  the Claims  Limitation shall not apply and (in respect of clause (ii)
above) any Losses in connection therewith shall not be included or calculated in
determining whether the Claims Limitation has been exceeded. Notwithstanding any
of the  foregoing,  (A) the  Deductible  shall  not  apply to or  cover  (x) any

                                       61


breach(es)  of the  representations  and  warranties  contained  in Sections 3.1
(other than the last two sentences thereof),  3.2, 3.3, 3.9(d) and (e), 3.13(l),
3.26,  3.27,  4.2,  4.7,  5.1,  5.5 or 5.6  hereof or in the  Estimated  Closing
Certificate or of the covenants and  agreements  contained in Sections 6.4, 6.5,
6.9,  6.10,  6.12,  6.16 and 6.19  hereof or (y)  subject to  Sections  10.2 and
10.3(a) hereof, any breach(es) of the representations,  warranties, covenants or
agreements  contained  herein  if  the  Closing  does  not  occur  and  (B)  the
Deductible,  in respect of any breach(es) of Section 6.1 hereof, shall be deemed
to be $100,000.

            (b)   Notwithstanding  anything set forth in this Agreement,  except
(x) for the right to seek to  specifically  enforce the  covenants  contained in
Sections 6.4, 6.9, 6.10, 6.14 and 6.16 under this Agreement, (y) as specifically
provided in Sections 6.5, 6.13(e), 7 and 10 hereof and (z) for remedies that may
not be waived as a matter of law, the sole and  exclusive  remedy of the Parties
for  breaches  of the  representations,  warranties,  covenants  and  agreements
contained in this Agreement (and any certificate  delivered pursuant hereto), or
otherwise in connection  with the  transactions  contemplated  hereby,  shall be
limited to the indemnification rights set forth in this Section 11.


            11.5. RELATIONSHIP WITH CASH PURCHASE PRICE ADJUSTMENTS.
                  -------------------------------------------------

            (a)   Notwithstanding  any payment  that may be due to PRI under the
Cash Purchase Price  adjustment  provisions set forth in Sections 2.2(d) and 2.4
hereof, the indemnity  provisions of Section 11.2(a) hereof shall remain in full
force and effect, without any modification or diminution thereof.

            (b)   Notwithstanding  any  payment  that  may be  due  to any  Kali
Shareholder under the Gross-Up  provisions set forth in Section 2.5 hereof,  the
indemnity provisions of Sections 11.2(b) and 11.2(c) hereof shall remain in full
force and effect, without any modification or diminution thereof.


            11.6. INDEMNIFICATION  WAIVER.  Effective upon the Closing,  each of
the  Kali  Shareholders   hereby  irrevocably  waives  any  and  all  rights  to
indemnification  or  contribution  from  Kali,  including  any  under  the  Kali
Organizational  Documents,  in his or her  capacity as a  director,  employee or
officer of Kali,  or as a trustee of any Kali Benefit  Plan,  to which he or she
would  otherwise  have been  entitled for all periods  through the Closing Date,
including in respect of the transactions contemplated hereby.


            11.7. ORDER  OF  INDEMNIFICATION.   PRI  agrees  that  if  the  Kali
Shareholders  are required to make any liquidated  damage  payments  pursuant to
Section 6.5 hereof or make any  indemnification  payments pursuant to Sections 7
or  11.2(a)  hereof,  then such  payments  shall be  sought  first  against  Mr.
Subramanian,  then,  only to the  extent of any  deficiency  or  failure to pay,
against  Ms.  Subramanian  and then,  only to the  extent of any  deficiency  or
failure to pay,  against the IS Trust  and/or the AS Trust,  equally;  PROVIDED,
HOWEVER,  that with respect to Section 10.3  hereof,  any payment of  liquidated
damages (or the Percentage  Amount)  required  thereunder  shall be sought first
against Kali and then,  only to the extent there is any deficiency or failure to
pay, the Kali Shareholders.

                                       62



            11.8. RESTRICTION   ON   TRANSFER.    In   order   to   secure   any
indemnification  obligations that they have hereunder,  Mr.  Subramanian and Ms.
Subramanian shall not, directly or indirectly, transfer more than $20,000,000 of
the aggregate  Cash Purchase  Price  received by them to their  children (or any
trust or similar vehicle formed for their benefit) or to any  irrevocable  trust
or similar vehicle during the nineteen- (19) month period  following the Closing
Date.


            12.   MISCELLANEOUS.
                  --------------


            12.1. FEES  AND  EXPENSES.  Each of the Kali  Shareholders  (and not
Kali, other than as provided below) and PRI shall  respectively pay all fees and
expenses  incurred  by him/it,  or on his/its  behalf,  in  connection  with the
negotiation,  execution  and  delivery  of this  Agreement  (and the  agreements
contemplated  hereby)  and the  consummation  of the  transactions  contemplated
hereby  and  thereby;  PROVIDED,  HOWEVER,  that  (i)  Kali  may  pay  the  Kali
Transaction Costs, on behalf of the Kali Shareholders, up to the aggregate limit
set forth in  Section  2.2(d)(v)  hereof  and (ii) Kali and PRI shall  each bear
fifty (50%) percent of the filing fees required under the HSR Act and ISRA.


            12.2. FURTHER ASSURANCES;  COOPERATION.  From time to time after the
Closing,  at the request of a Party hereto and at the expense of the  Party(ies)
so requesting, each Party agrees to execute and deliver to such requesting Party
such  documents  and  take  such  other  action  as such  requesting  party  may
reasonably  request in order to consummate  more  effectively  the  transactions
contemplated  hereby.  The Kali Shareholders and PRI shall reasonably  cooperate
with each other and provide each other with such assistance as reasonably may be
requested by either Party, including with respect to the prosecution and defense
of any  third-party  claims.  The Party  requesting  assistance  hereunder shall
reimburse  the  Party  providing  assistance  for all  reasonable  out-of-pocket
expenses incurred by such Party in providing such assistance.


            12.3. NOTICES.  All notices,  requests,  demands,  waivers and other
communications  required or permitted to be given under this Agreement  shall be
in writing and shall be deemed to have been duly given if delivered  personally,
sent by  facsimile  transmission  or  reputable  overnight  courier,  or  mailed
(certified or registered mail, return receipt requested):

            IF TO PRI, TO:
            -------------

                  Pharmaceutical Resources, Inc.
                  One Ram Ridge Road
                  Spring Valley, NY  10977
                  Attn:  Thomas J. Haughey, General Counsel
                  Fax:  (201) 802-4223

                                       63


                  with a copy (which shall not constitute notice) to:

                  Kirkpatrick & Lockhart LLP
                  599 Lexington Avenue
                  New York, NY  10022-6030
                  Attn: Stephen R. Connoni, Esq.
                        R. King Milling, Esq. Fax: (212) 536-3901

            IF TO KALI OR THE KALI SHAREHOLDERS PRIOR TO THE CLOSING, to:

                  Kali Laboratories, Inc.
                  400 Campus Drive
                  Somerset, NJ  08873
                  Attn:  President and Chief Executive Officer
                  Fax:  (732) 537-0900

            IF TO THE KALI SHAREHOLDERS AFTER THE CLOSING, to:

                  c/o Kali Laboratories, Inc.
                  400 Campus Drive
                  Somerset, NJ  08873
                  Attn:  Veerappan S. Subramanian, as the Kali Shareholders' Rep
                  Fax:  (732) 537-0900

                  with a copy (which shall not constitute notice) to:

                  Reitler Brown LLC
                  800 Third Avenue, 21st Floor
                  New York, NY 10022-7604
                  Attn:  Scott Rosenblatt, Esq.
                  Fax:  (212) 371-5500

or to such  other  Person or  address  as any Party  shall  specify by notice in
writing to the other Party(ies).  All such notices,  requests,  demands, waivers
and other  communications  shall be deemed to have been  received on the date on
which so hand-delivered or telecommunicated or delivered by overnight courier or
on the fifth  Business Day following  the date on which so mailed,  except for a
notice of change of address  (which  shall be effected in  accordance  with this
Section 12.3), which shall be effective only upon receipt thereof.


            12.4. ENTIRE  AGREEMENT.   This  Agreement,   the  other  agreements
contemplated  hereby and the  Schedules  hereto and  thereto  contain the entire
understanding  of the Parties hereto with respect to the subject matter thereof.
This Agreement  supersedes all prior  agreements  and  understandings,  oral and
written, with respect to its subject matter.


            12.5. SEVERABILITY. If any provision of this Agreement shall for any
reason be declared invalid or unenforceable,  such decision shall not affect the
validity or  enforceability  of any of the other  provisions of this  Agreement,


                                       64


which other  provisions shall remain in full force and effect and be enforced to
the fullest extent permitted by applicable Law.


            12.6. BINDING  EFFECT;  ASSIGNMENT.  This  Agreement  and all of the
provisions  hereof shall be binding upon and inure to the benefit of the Parties
hereto  and their  respective  successors  (including  any  purchaser  of all or
substantially  all of the assets of a Party),  heirs,  legal  beneficiaries  and
permitted  assigns.  Neither this Agreement nor any of the rights,  interests or
obligations hereunder shall be assigned or delegated, directly or indirectly, by
any Party  hereto  without the prior  written  consent of the other  Party(ies);
PROVIDED,  HOWEVER,  that PRI may assign and delegate this  Agreement and any or
all of its rights,  interests and obligations hereunder to an Affiliate thereof.
Upon any such  permitted  assignment,  the  references in this  Agreement to the
assigning  party shall also apply to any assignee  unless the context  otherwise
requires,  but such  assignment  will neither relieve the assigning party of its
obligations hereunder nor reduce the economic benefit hereunder to the Party not
assigning  this  Agreement in the event that such assignee fails to perform such
obligations in accordance with the terms of this Agreement.


            12.7. NO THIRD-PARTY BENEFICIARIES.  This Agreement is not intended,
and shall not be deemed, to confer upon or afford any Person (including any past
or current  employee of Kali),  except the Parties hereto (and,  with respect to
Section 11 hereof,  any related  Indemnitees) and their  respective  successors,
heirs, legal  beneficiaries and permitted assigns,  any remedy,  claim, cause of
action or other right under or by reason of this Agreement.


            12.8. COUNTERPARTS.  This Agreement may be executed in counterparts,
each of which  shall be  deemed an  original,  and all of which  together  shall
constitute one and the same instrument.


            12.9. GOVERNING  LAW. This Agreement and any claim related  directly
or indirectly to this Agreement shall be governed by and construed in accordance
with the Laws of the State of New York.


            12.10.  AMENDMENTS;  WAIVERS.  This  Agreement  may not be  amended,
modified or  supplemented  except pursuant to an instrument in writing signed by
PRI  and  the  Kali  Shareholder's  Rep.  Any  failure  of  Kali  and  the  Kali
Shareholders  to comply  with any term or  provision  of this  Agreement  may be
waived by PRI at any time by an  instrument  in writing  signed on behalf of PRI
and any failure of PRI to comply with any term or  provision  of this  Agreement
may be  waived by the Kali  Shareholders'  Rep at any time by an  instrument  in
writing  signed by the Kali  Shareholders'  Rep.  Any such  waiver or failure to
insist upon strict compliance with such term or provision shall not operate as a
waiver of, or estoppel  with  respect  to, any  subsequent  or other  failure to
comply.

            12.11. APPOINTMENT AND DUTIES OF THE KALI SHAREHOLDERS' REP.
                   -----------------------------------------------------

            (a)   Each of the Kali Shareholders hereby irrevocably  appoints Mr.
Subramanian to act as the Kali Shareholders' Rep on its and her behalf hereunder
and under all other agreements and  certificates  contemplated by this Agreement
(other than the Form 8023 and the Certificates of Non-Foreign  Status),  and the
certificates required to be delivered pursuant to Sections 2.4(a) and 9.4 hereof
and to perform its and her  obligations  hereunder and  thereunder.  Each of the


                                       65


Kali Shareholders  hereby  irrevocably  authorizes the Kali Shareholders' Rep to
take such  actions  on its and her  behalf and to  exercise  such  powers as are
provided  to the Kali  Shareholders'  Rep by the  terms and  provisions  of this
Agreement  (including Section 10 hereof),  together with such actions and powers
as are reasonably  incidental thereto. All matters of indemnification  involving
any of the Kali  Shareholders  shall be solely  controlled  and conducted by the
Kali Shareholders'  Rep. Mr. Subramanian hereby irrevocably and  unconditionally
accepts such appointment as the Kali Shareholders' Rep.

            (b)   PRI  may  rely  upon  written   instructions   from  the  Kali
Shareholders'  Rep with  respect to the giving of any notices to any of the Kali
Shareholders as an "Indemnitee" or  "Indemnifying  Party" hereunder or otherwise
in  connection  with this  Agreement.  PRI  shall not be liable  for any acts or
omissions of the Kali  Shareholders'  Rep in connection  with the performance by
the  Kali  Shareholders'  Rep of his  obligations  hereunder.  Each of the  Kali
Shareholders  hereby irrevocably  appoints the Kali Shareholders' Rep as its and
her agent for purposes of the first sentence of this Section 12.11(b).


                            [SIGNATURE PAGE FOLLOWS]

                                       66


            IN WITNESS WHEREOF,  the Parties hereto have executed this Agreement
as of the date first above written.

                         PHARMACEUTICAL RESOURCES, INC.


                              By: /S/ SCOTT TARRIFF
                                 ---------------------------------------------
                                 Name: Scott Tarriff
                                 Title:President and Chief Executive Officer



                              KALI LABORATORIES, INC.


                              By: /S/ VEERAPPAN SUBRAMANIAN
                                 ---------------------------------------------
                                 Name: Veerappan Subramanian, Ph.D.
                                 Title:   President and Chief Executive Officer



                              VGS HOLDINGS, INC.
                              (with respect to Sections 6.18 and 6.19 only)



                              By:/S/ VEERAPPAN SUBRAMANIAN
                                 ---------------------------------------------
                                 Name: Veerappan Subramanian, Ph.D.
                                 Title:   President and Chief Executive Officer


                                 /S/ VEERAPPAN SUBRAMANIAN
                                 ---------------------------------------------
                                 Veerappan Subramanian, Ph.D.




                                 /S/ GOVINDAMMAL SUBRAMANIAN
                                 ---------------------------------------------
                                 Govindammal Subramanian, Ph.D.

                              THE ANU SUBRAMANIAN IRREVOCABLE TRUST


                              By:/S/ VEERAPPAN SUBRAMANIAN
                                 ---------------------------------------------
                                 Name: Veerappan Subramanian, Ph.D.
                                 Title: Trustee

                              THE ILANGO SUBRAMANIAN IRREVOCABLE TRUST


                              By:/S/ VEERAPPAN SUBRAMANIAN
                                 ---------------------------------------------
                                 Name: Veerappan Subramanian, Ph.D.
                                 Title:   Trustee