Exhibit 10.11.1

                            SECOND AMENDMENT TO LEASE
                            -------------------------


1.   PARTIES
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     1.1  THIS AGREEMENT made the 19th day of December, 2002 is between 300 TICE
          REALTY  ASSOCIATES  L.L.C.  ("Lessor")  whose address is c/o Mack-Cali
          Realty Corporation,  11 Commerce Drive, Cranford, New Jersey 07016 and
          PAR  PHARMACEUTICAL,  INC.  ("Lessee"),  whose  address  is  300  Tice
          Boulevard, Woodcliff Lake, New Jersey 07675.


2.   STATEMENT OF FACTS
     ------------------

     2.1  Lessor and Lessee previously  entered into a Lease dated May 24, 2002,
          as amended by First  Amendment  to Lease  dated  August 5, 2002,  (the
          "Lease") covering  approximately  10,420 gross rentable square feet on
          the second  (2nd)  floor  (hereinafter  referred  to as the  "Existing
          Premises") in the building  located at 300 Tice  Boulevard,  Woodcliff
          Lake, New Jersey ("Building"); and

     2.2  The  Term  of  the  Lease  currently   expires  on  January  31,  2010
          ("Expiration Date"); and

     2.3  Lessee   desires  to  expand   the   Existing   Premises   by  leasing
          approximately  25,656  gross  rentable  square feet on the third (3rd)
          floor of the Building  ("Expansion  Premises"),  as shown on Exhibit A
          attached  hereto and made a part hereof and by leasing two (2) storage
          units in the garage,  consisting of Unit A of approximately  350 gross
          rentable  square feet and Unit B of  approximately  308 gross rentable
          square feet (the  "Storage  Space") as shown on Exhibit  A-1  attached
          hereto and made a part hereof; and

     2.4  The  parties  desire to  extend  the Term of the Lease for a period to
          commence on February 1, 2010; and

     2.5  The parties  desire to amend  certain  terms of the Lease as set forth
          below.


3.   AGREEMENT
     ---------

          NOW,  THEREFORE,   in  consideration  of  the  terms,   covenants  and
     conditions hereinafter set forth, Lessor and Lessee agree as follows:

     3.1  The above recitals are incorporated herein by reference.

     3.2  All capitalized and non-capitalized terms used in this Agreement which
          are not  separately  defined herein but are defined in the Lease shall
          have the meaning given to any such term in the Lease.

     3.3  The Term applicable to the Expansion  Premises and Storage Space shall
          commence on the Effective Date (as defined below) and shall  terminate
          at 11:59 p.m. on the last day of the month  during which the eight (8)
          year anniversary of the Effective Date occurs.

     3.4  The  effective  date   applicable  to  the  Expansion   Premises  (the
          "Effective  Date")  shall  be  the  earlier  of  (i)  the  day  Lessor
          substantially  completes the  improvements to be made to the Expansion
          Premises in  accordance  with Exhibit B attached  hereto and made part
          hereof or (ii) the date  Lessee or anyone  claiming  under or  through
          Lessee shall occupy the Expansion Premises. The Storage Space shall be
          delivered  in "as is"  condition  and  therefore  the  Effective  Date
          applicable to the Storage Space shall be upon its delivery to Lessee.

     3.5  From and after the Effective Date, the following shall be effective:

          a.   Lessor  shall  lease to Lessee and Lessee  shall hire from Lessor
               the Expansion  Premises as shown on Exhibit A attached hereto and
               made  part  hereof  and  Storage  Space as shown on  Exhibit  A-1
               attached hereto and made part hereof.

          b.   The  Premises  shall be defined  as  approximately  36,734  gross
               rentable  square feet  consisting of  approximately  10,420 gross
               rentable square feet on the second (2nd) floor and  approximately
               25,656 gross rentable square feet on the third (3rd) floor of the

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               Building  and  approximately  658 gross  rentable  square feet of
               Storage  Space in the garage and  Paragraph 7 of the  Preamble to
               the Lease shall be deemed amended accordingly.

          c.   In  addition to the Fixed Basic Rent  payable  applicable  to the
               Existing  Premises,  Lessee  shall pay  Lessor  Fixed  Basic Rent
               applicable  to the  Expansion  Premises  and Storage  Space which
               shall  accrue as follows and  Paragraph 10 of the Preamble to the
               Lease shall be deemed amended accordingly:

               A. Fixed Basic Rent for the Expansion Premises:

               (i)  Commencing on the  Effective  Date through and including the
                    last day of the month in which the five (5) year anniversary
                    of the  Effective  Date  occurs,  the  Fixed  Rent  for  the
                    Expansion Premises only shall be SEVEN HUNDRED FIVE THOUSAND
                    FIVE  HUNDRED  FORTY AND 00/100  DOLLARS  ($705,540.00)  per
                    annum,  payable in advance in equal monthly  installments of
                    FIFTY EIGHT  THOUSAND  SEVEN HUNDRED  NINETY FIVE AND 00/100
                    DOLLARS ($58,795.00) each;

               (ii) For the next  three  (3) years  through  and  including  the
                    expiration  Date, the Fixed Rent for the Expansion  Premises
                    only shall be SEVEN HUNDRED  THIRTY ONE THOUSAND ONE HUNDRED
                    NINETY  SIX AND  00/100  DOLLARS  ($731,196.00)  per  annum,
                    payable in advance in equal  monthly  installments  of SIXTY
                    THOUSAND  NINE  HUNDRED  THIRTY  THREE  AND  00/100  DOLLARS
                    ($60,933.00) each.

               B. Fixed Basic Rent for the Storage Space:

                    Commencing on the  Effective  Date through and including the
                    expiration,  the Fixed Rent for the Storage Space only shall
                    be EIGHT THOUSAND TWO HUNDRED TWENTY FIVE AND 00/100 DOLLARS
                    ($8,225.00)  per annum,  payable in advance in equal monthly
                    installments  of SIX HUNDRED  EIGHTY FIVE AND 42/100 DOLLARS
                    ($685.42) each.

               d.   Lessee's  Percentage  applicable to the  Expansion  Premises
                    shall  be  11.15%.  Lessee's  Percentage  applicable  to the
                    Storage Space shall be .29%.

               e.   Lessee  shall  pay  Lessor,  as  Additional  Rent,  Lessee's
                    Percentage  applicable  to  the  Expansion  Premises  of the
                    increased  cost to  Lessor  for each of the  categories  set
                    forth in Article  23  ADDITIONAL  RENT over the Base  Period
                    Costs set forth below.

               f.   Base Period Costs applicable to the Expansion Premises shall
                    be as follows and  Paragraph 2 of the  Preamble to the Lease
                    shall be deemed amended accordingly:

                    (A)  Base  Operating  Costs:  Those costs  incurred  for the
                         Building and Office  Building  Area during the Calendar
                         Year 2003.

                    (B)  Base  Real  Estate  Taxes:   Those  Real  Estate  Taxes
                         incurred  for the  Building  and Office  Building  Area
                         during Calendar Year 2003.

                    (C)  Insurance Cost Expense Stop: $32,630.00.

                    (D)  Utility and Energy Costs Expense Stop: $230,000.00.

               g.   Lessee  shall pay  Lessor the cost of  electricity  consumed
                    within the Expansion  Premises in accordance with Article 22
                    of the Lease BUILDING STANDARD OFFICE ELECTRICAL SERVICE.

               h.   The number of parking spaces as set forth in Paragraph 14 of
                    the  Preamble to Lease shall be  increased to a total of one
                    hundred forty five (145) spaces as follows:

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                    Assigned: thirty -four (34) spaces located in the garage

                    Unassigned:  one hundred  eleven (111) spaces in the outdoor
                    parking lot

     3.6  The Term  applicable to the Existing  Premises shall be extended for a
          period  commencing  on February 1, 2010 and  expiring at 11:59 p.m. on
          the last day of the month during which the eight (8) year  anniversary
          of the Effective Date (as defined  herein) occurs  ("Extension  Term")
          and  Paragraphs  9 and 17 of the Preamble to the Lease shall be deemed
          amended accordingly.

     3.7  Lessor hereby leases to Lessee and Lessee hereby hires from Lessor the
          Existing  Premises in its "AS-IS" condition for the Extension Term, as
          defined  herein,  under  the terms and  conditions  set forth  herein.
          Lessor shall have no obligation to perform any tenant improvement work
          in the Existing Premises except as set forth on Exhibit B.

     3.8  Commencing  on February  1, 2010 and during the  Extension  Term,  the
          following shall be effective:

          a.   The Fixed Basic Rent  applicable to the Existing  Premises  shall
               continue  at the rate of TWO  HUNDRED  NINETY SIX  THOUSAND  NINE
               HUNDRED  SEVENTY  AND  00/100  DOLLARS  ($296,970.00)  per annum,
               payable in advance in equal monthly  installments  of TWENTY FOUR
               THOUSAND   SEVEN   HUNDRED   FORTY   SEVEN  AND  50/100   DOLLARS
               ($24,747.50)  per month and Paragraph 10 of the Preamble shall be
               deemed supplemented accordingly.

          b.   Lessee shall continue to pay Lessor, as Additional Rent, Lessee's
               Percentage  applicable to the Existing  Premises of the increased
               cost to Lessor for each of the categories set forth in Article 23
               of the Lease Additional Rent over the Base Period Costs set forth
               in Paragraph  3.5 f. of this First  Amendment  and Paragraph 2 of
               the Preamble to Lease shall be amended accordingly.

          c.   Lessee  shall  continue  to pay  Lessor  the cost of  electricity
               consumed within the Existing  Premises in accordance with Article
               22 of the Lease BUILDING STANDARD OFFICE ELECTRICAL SERVICE.

     3.9  Article 15  SUBORDINATION  OF LEASE shall be amended by deleting  said
          Article in its entirety and substituting the following in its place:

          "SUBORDINATION  OF LEASE:  This Lease shall, at Lessor's option, or at
          the  option  of any  holder of any  underlying  lease or holder of any
          mortgages  or trust  deed,  be  subject  and  subordinate  to any such
          underlying  leases and to any such  mortgages  or trust deed which may
          now or hereafter affect the real property of which the Premises form a
          part,  and also to all  renewals,  modifications,  consolidations  and
          replacements  of said  underlying  leases and said  mortgages or trust
          deed provided,  that Lessor shall obtain a  non-disturbance  agreement
          from the future holder of any such underlying lease, mortgage or trust
          deed in said lender's  standard form.  Lessee will execute and deliver
          such further  instruments  confirming such subordination of this Lease
          as may be desired by the holders of said mortgages or trust deed or by
          any of  the  lessor's  under  such  underlying  leases,  provided  the
          requirements  of the  preceding  sentence  are met. If any  underlying
          lease to which this  Lease is subject  terminates,  Lessee  shall,  on
          timely request, attorn to the owner of the reversion.

          Lessor represents that there currently is no mortgage  encumbering the
          Building."

     3.10 Article  52  LESSEE'S  EXPANSION/RELOCATION  shall be  deleted  in its
          entirety.

     3.11 A new  Article 56 RIGHT OF FIRST  OFFER shall be added to the Lease as
          follows:

          "56. RIGHT OF FIRST OFFER:

          a.   i. Subject to the  provisions of this Article,  Lessee shall have
               the option to lease from  Lessor  space on the third  (3rd) floor
               contiguous to the Expansion Premises  ("Additional Space") at the
               expiration of the existing space lease for such Additional Space,
               subject to  Lessor's  right to renew such  lease.  If the Term of
               this Lease shall be in full force and effect on the expiration or

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               termination  date of the existing  space lease for the Additional
               Space,  subject to Lessor's  right to renew such  lease,  and the
               date upon which  Lessee  shall  exercise  the option  hereinafter
               referred  to,  Lessee shall have the option to lease all, but not
               less than all of the Additional Space on an as-is basis, provided
               Lessee gives Lessor  written  notice of such election  within ten
               (10) days after Lessee shall  receive  Lessor's  notice that such
               Additional  Space is available  for leasing to Lessee.  If Lessee
               fails or refuses to exercise  this option  within the time period
               set forth  above (TIME  BEING OF THE  ESSENCE),  then and in such
               event Lessee shall have no further rights under this Section with
               respect to such Additional  Space. If Lessee shall elect to lease
               said Additional  Space: (v) said Additional Space shall be deemed
               incorporated  within  and part of the  Premises  on the date that
               Lessor shall notify  Lessee that such  Additional  Space is ready
               for occupancy by Lessee and shall expire on the  Expiration  Date
               of this Lease,  (x) the Fixed Basic Rent payable under this Lease
               shall be  increased  by an amount such that during the balance of
               the term of this Lease (A) if the Commencement Date applicable to
               the Additional Space occurs before the three (3) year anniversary
               of the Effective  Date, the Fixed Basic Rent for said  Additional
               Space  shall,  on a per square foot basis,  be equal to the Fixed
               Basic  Rent,  on a per square foot  basis,  as same is  increased
               after the 5th year anniversary  hereunder,  payable by Lessee for
               the Premises,  and Lessee shall receive an allowance in an amount
               not to exceed $10.00 per square foot in the  Additional  Premises
               toward  the  cost  of  work  to be  performed  by  Lessee  in the
               Additional  Space,  which  allowance shall be prorated based upon
               the number of full  months  remaining  in the term  divided by 96
               months,  Lessee's Percentage shall be proportionately  increased,
               and all other terms and  provisions set forth in this Lease shall
               apply  or  (B)  if  the  Commencement   Date  applicable  to  the
               Additional   Space   occurs  on  or  after  the  three  (3)  year
               anniversary of the Effective  Date, the Fixed Basic Rent for said
               Additional  Space  shall be the  then  fair  market  rent for the
               Additional Space, as determined in the manner set forth in clause
               (ii)  below,   Lessee's   Percentage  shall  be   proportionately
               increased,  and all other terms and  provisions set forth in this
               Lease shall apply,  except that Lessor not be required to perform
               any work with respect to said  Additional  Space and Lessee shall
               not be entitled to any allowance.

               The parties  shall  promptly  execute an  amendment of this Lease
               confirming  Lessee's  election to lease said Additional Space and
               the incorporation of said Additional Space into the Premises.

               If prior to the  expiration of the existing  space lease for such
               Additional  Space  Lessor  shall  receive  notice from the tenant
               thereof that the  Additional  Space or portion  thereof  shall be
               offered  for  sublease,  then Lessor  shall so advise  Lessee and
               Lessor agrees to explore in good faith with Lessee and the tenant
               under said existing  space lease,  the terms and  provisions of a
               recapture  of said  space by Lessor  and a lease of said space to
               Lessee on mutually acceptable terms. Neither party shall have any
               obligation to enter into said expansion of lease or liability for
               failure to do so.

          ii.  Lessor and Lessee  shall use their best  efforts,  within  thirty
               (30) days after Lessor  receives  Lessee's notice of its election
               to lease said Additional Space,  ("Negotiation  Period") to agree
               upon  the  Fixed  Basic  Rent  to be  paid  by  Lessee  for  said
               Additional Space. If Lessor and Lessee shall agree upon the Fixed
               Basic Rent,  the parties shall  promptly  execute an amendment to
               this Lease stating the Fixed Basic Rent for the Additional Space.

               If the  parties  are unable to agree on the Fixed  Basic Rent for
               said Additional Space during the Negotiation  Period, then within
               fifteen  (15) days  notice  from the  other  party,  given  after
               expiration of the Negotiation Period, each party, at its cost and
               upon notice to the other party,  shall appoint a person to act as
               an appraiser hereunder, to determine the fair market rent for the
               Additional  Space. Each such person shall be a real estate broker
               or appraiser with at least ten (10) years' active commercial real
               estate appraisal or brokerage  experience  (involving the leasing
               of similar  space as agent for both  landlords  and  tenants)  in
               Bergen County.  If a party does not appoint a person to act as an
               appraiser  within  said  fifteen  (15)  day  period,  the  person

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               appointed  by the other  party  shall be the sole  appraiser  and
               shall  determine  the  aforesaid  fair market  rent.  Each notice
               containing the name of a person to act as appraiser shall contain
               the person's  address.  Before  proceeding  to establish the fair
               market rent, the appraisers  shall subscribe and swear to an oath
               fairly and impartially to determine such rent.

               If the two  appraisers  are appointed by the parties as stated in
               the immediately preceding paragraph, they shall meet promptly and
               attempt to determine  the fair market rent. If they are unable to
               agree within  forty-five  (45) days after the  appointment of the
               second  appraiser,  they shall  attempt to select a third  person
               meeting the  qualifications  stated in the immediately  preceding
               paragraph  within  fifteen  (15) days  after the last day the two
               appraisers  are given to determine  the fair market rent. If they
               are  unable  to agree on the  third  person  to act as  appraiser
               within said  fifteen  (15) day period,  the third person shall be
               appointed  by the  American  Arbitration  Association,  upon  the
               application of Lessor or Lessee to the office of the  Association
               nearest the Building. The person appointed to act as appraiser by
               the  Association  shall be  required  to meet the  qualifications
               stated  in  the  immediately  preceding  paragraph.  Each  of the
               parties  shall bear fifty percent (50%) of the cost of appointing
               the third person and of paying the third person's fees. The third
               person,  however  selected,  shall  be  required  to take an oath
               similar to that described above.

               The three  appraisers  shall meet and  determine  the fair market
               rent.  A  decision  in which two of the three  appraisers  concur
               shall be binding and conclusive upon the parties. In deciding the
               dispute,  the appraisers  shall act in accordance  with the rules
               then in force of the American  Arbitration  Association,  subject
               however,  to such  limitations  as may be  placed  on them by the
               provisions of this Lease.

               After  the Fixed  Basic  Rent for the  Additional  Space has been
               determined by the  appraiser or  appraisers  and the appraiser or
               appraisers  shall have  notified the  parties,  at the request of
               either  party,  both  parties  shall  execute and deliver to each
               other an amendment of this Lease stating the Fixed Basic Rent for
               the Additional Space.

               If the Fixed  Basic Rent for said  Additional  Space has not been
               agreed  to or  established  prior  to the  incorporation  of said
               Additional Space in the Premises, then Lessee shall pay to Lessor
               an annual rent  ("Temporary  Rent") which Temporary Rent on a per
               square foot basis  shall be equal to the Fixed  Basic Rent,  on a
               per  square  foot  basis,  then  being  paid  by  Lessee  for the
               Premises.

               Thereafter,  if the parties  shall agree upon a Fixed Basic Rent,
               or  the  Fixed   Basic  Rent  shall  be   established   upon  the
               determination  of  the  fair  market  rent  by the  appraiser  or
               appraisers,  at a rate at variance with the Temporary Rent (i) if
               such Fixed Basic Rent is greater than the Temporary Rent,  Lessee
               shall  promptly  pay to Lessor the  difference  between the Fixed
               Basic Rent  determined by agreement or the appraisal  process and
               the Temporary Rent, or (ii) if such Fixed Basic Rent is less than
               the Temporary  Rent,  Lessor shall credit to Lessee's  subsequent
               monthly  installments of Fixed Basic Rent the difference  between
               the  Temporary  Rent  and the  Fixed  Basic  Rent  determined  by
               agreement or the appraisal process.

               In determining  the fair market rent for said  Additional  Space,
               the  appraiser  or  appraisers  shall be  required  to take  into
               account the rentals at which leases are then being  concluded for
               comparable  space in the Building and in comparable  buildings in
               the County of Bergen,  New Jersey and the fact that Lessor is not
               required  to perform  any work with  respect  to said  Additional
               Space.  In no event shall the Fixed Basic Rent for the Additional
               Space,  on a per square foot basis,  be less than the Fixed Basic
               Rent for the Premises, on a per square foot basis.

          b.   The  option  granted  to  Lessee  under  this  Article  56 may be
               exercised only by Lessee,  its permitted  successors and assigns,
               and not by any  subtenant  or any  successor  to the  interest of
               Lessee by reason of any action under the  Bankruptcy  Code, or by

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               any public officer,  custodian,  receiver, United States Trustee,
               trustee or liquidator of Lessee or substantially  all of Lessee's
               property.  Lessee  shall  have no right to  exercise  any of such
               options  subsequent  to the date  Lessor  shall have the right to
               give  the  notice  of  termination  referred  to in  Article  13.
               Notwithstanding  the  foregoing,  Lessee  shall  have no right to
               exercise the option  granted to Lessee  hereunder if, at the time
               it gives  notice of such  election  (i) Lessee or an affiliate of
               Lessee  shall not be in  occupancy  of  substantially  all of the
               Premises or (ii) the  Premises or any part  thereof  shall be the
               subject of a sublease  other than to an affiliate  of Lessee.  If
               Lessee shall have elected to exercise its option hereunder,  such
               election  shall be deemed  withdrawn  if,  at any time  after the
               giving of notice of such  election and prior to the  occupancy of
               the  Additional  Space,  Lessee shall sublease all or any part of
               the Premises.


     3.12 The  Option to Extend as set forth in  Article  55 of the Lease  shall
          continue in full force and effect and shall be  applicable to both the
          Existing Premises and the Expansion Premises.

     3.13 No  later  than  thirty  (30)  days  after  the  determination  of the
          Effective  Date, the parties shall agree to memorialize  the Effective
          Date in writing.

     3.14 Lessee and Lessor each  represents  and  warrants to the other that no
          broker  brought  about  this  transaction  except  Strategic  Alliance
          Partners, LLC, and each party agrees to indemnify, defend and hold the
          other harmless from any and all claims of any broker  claiming to have
          dealt  with  such  party  arising  out  of  or  in   connection   with
          negotiations of, or entering into of, this Agreement.

     3.15 Lessee  hereby  represents  to Lessor that (i) there exists no default
          under the Lease either by Lessor or Lessee; (ii) Lessee is entitled to
          no credit,  free rent or other  offset or  abatement  of the rents due
          under  the  Lease;  and  (iii)  there  exists no  offset,  defense  or
          counterclaim to Lessee's obligation under the Lease.

     3.16 Except as expressly  amended herein,  the Lease dated May 24, 2002, as
          amended  herein,  shall remain in full force and effect as if the same
          had been set forth in full herein, and Lessor and Lessee hereby ratify
          and confirm all of the terms and conditions thereof.

     3.17 This  agreement  shall be binding upon and inure to the benefit of the
          parties hereto and their respective legal representatives,  successors
          and permitted assigns.

     3.18 Each party agrees that it will not raise or assert as a defense to any
          obligation  under the Lease or this  Agreement  or make any claim that
          the Lease or this  Agreement  is invalid or  unenforceable  due to any
          failure  of this  document  to comply  with  ministerial  requirements
          including,  but not  limited to,  requirements  for  corporate  seals,
          attestations, witnesses, notarizations, or other similar requirements,
          and each party  hereby  waives the right to assert any such defense or
          make any claim of  invalidity  or  unenforceability  due to any of the
          foregoing.







     IN WITNESS  WHEREOF,  Lessor and Lessee have  hereunto  set their hands and
seals the date and year first above written,  and  acknowledge  one to the other
that they possess the requisite  authority to enter into this transaction and to
sign this Agreement.

LESSOR:                                     LESSEE:

300 TICE REALTY ASSOCIATES L.L.C.           PAR PHARMACEUTICAL, INC.

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By:   Mack-Cali Realty, L.P.
      Member

By:   Mack-Cali Realty Corporation,
      General Partner



By:   /s/ Michael A. Grossman               By:   Dennis O'Connor
      -----------------------                     ---------------------
      Michael A. Grossman                         Name: Dennis O'Connor
      Executive Vice President                    Title:VP-CFO

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                                    EXHIBIT B
                                    ---------

                                  LESSOR'S WORK

RE:  Workletter  Agreement  for  office  space  on the  third  floor at 300 Tice
     Boulevard, Woodcliff Lake, New Jersey.

                                                               December 19, 2002

PAR PHARMACETICAL, INC., LESSEE

You  ("Lessee")  and  we  ("Lessor")  are  executing  simultaneously  with  this
Workletter  Agreement a written lease  amendment  ("Lease"),  covering the space
referred  to above,  as more  particularly  described  in the Lease  ("Expansion
Premises").

To induce  Lessee  to enter  into the Lease  (which  is hereby  incorporated  by
reference) and in consideration of the covenants hereinafter  contained,  Lessor
and Lessee mutually agree as follows:

1.   Lessee shall have its  architect  prepare the following  architectural  and
     mechanical  drawings and specifications  based upon the sketch layout to be
     supplied to Lessor by Lessee.

     1.   Architectural  drawings  and  specifications  for  Lessee's  partition
          layout,  reflected ceiling,  placement of electrical outlets and other
          installations for the work to be done by Lessor.

     2.   Mechanical plans and  specifications  where necessary for installation
          of air conditioning systems, ductwork and heating.

     All such plans and specifications are expressly subject to Lessor's written
     approval, which Lessor covenants it will not unreasonably withhold.

2.   Upon approval of the plans by Lessor, Lessor shall file said plans with the
     appropriate governmental agencies.

3.   Lessor agrees to do the work in the Premises per the drawings  stated above
     and per the terms and conditions of this Exhibit C which shall  hereinafter
     be referred to as "The Work".  "Building  Standard" shall mean the type and
     grade of material, equipment and/or device designated by Lessor as standard
     for the Building.  All items are Building  Standard unless otherwise noted.
     The  provisions  of Article 6 of the Lease shall  apply to any  alterations
     made to the Premises after the initial work to be performed herein.

4.   Lessor shall deliver to Lessee  within  fifteen (15) days after the date on
     which the  conceptual  plan is delivered to Lessor,  a statement  including
     Lessor's 7%  supervision  plus 7% overhead  charges  ("Lessor's  Estimate")
     which specifies in detail Lessor's good faith estimate of the total "Lessee
     Improvement  Costs". The "Lessee Improvement Costs" shall be defined as any
     and all reasonable costs, including hard and soft costs, which are expected
     to be incurred by Lessor in connection  with the  construction of The Work.
     Lessor's  Estimate  shall be subject to the review and written  approval of
     Lessee, such approval not to be unreasonably withheld.  Such approval shall
     be deemed given if Lessee does not  disapprove  the same in writing  within
     ten (10) days after its receipt of Lessor's Estimate.

     Lessor  agrees to fund up to TWO HUNDRED  FIFTY SIX  THOUSAND  FIVE HUNDRED
     SIXTY And 00/100 dollars ($256,560.00)  (hereinafter referred to as "Lessor
     Contribution")  for the  Lessee  Improvement  Costs.  In the event that the
     Lessor's  Estimate  as  approved  by  Lessee,  indicates  that  the  Lessee
     Improvement Costs will exceed the Lessor Contribution, then;

     Lessee  shall pay the "Cost in  Excess"  (defined  as that  portion  of the
     Lessee  Improvement  Costs which exceed the Lessor  Contribution) to Lessor
     prior to occupancy of the Expansion Premises, and will notify Lessor of its
     intention  to do so within  fifteen  (15) days after  Lessee's  approval of
     Lessor's Estimate.

5.   All low  partitioning,  work station  modules,  bankscreen  partitions  and
     prefabricated partition systems shall be furnished and installed by Lessee.

6.   The  installation or wiring of telephone and computer (data) outlets is not
     part of The Work.  Lessee shall bear the  responsibility to provide its own
     telephone  and  data  systems  and any  associated  municipal  permits  and

                               Exhibit B - Page 1


     inspections,   if  required,  at  Lessee's  sole  cost  and  expense.  Upon
     expiration  or sooner  termination  of the Lease,  Lessee  shall remove all
     telephone and data equipment and wiring from the Expansion Premises and the
     Building risers prior to vacation of same.

7.   Changes in The Work,  if necessary  or  requested  by the Lessee,  shall be
     accomplished after submission of Lessee's final approved sketch layout, and
     without  invalidating  any part of the Lease or  Workletter  Agreement,  by
     written  agreement between Lessor and Lessee  hereinafter  referred to as a
     Change  Order.  Each Change Order shall be prepared by Lessor and signed by
     both Lessee and Lessor stating their agreement upon all of the following:

     1.   The scope of the change in The Work; and

     2.   The cost of the change; and

     3.   Manner in which the cost will be paid or credited.

     Each and  every  Change  Order  shall be signed by  Lessor's  and  Lessee's
     respective  construction  representatives.  In no event  shall  any  Change
     Order(s) be permitted without such authorizations. A 7% supervision plus 7%
     overhead  charge will be added to the cost of any Change  Order.  If Lessee
     shall fail to approve any such Change Order  within one (1) week,  the same
     shall be deemed  disapproved in all respects by Lessee and Lessor shall not
     be authorized to proceed  thereon.  Any increase in the cost of The Work or
     the change in The Work stated in a Change Order which results from Lessee's
     failure to timely approve and return said Change Order shall be paid by the
     Lessee.  Lessee  agrees  to pay to  Lessor  the  cost of any  Change  Order
     promptly upon receipt of an invoice for same.

8.   If Lessee elects to use the architect  suggested by Lessor,  this architect
     becomes the Lessee's agent solely with respect to the plans, specifications
     and The  Work.  If any  change is made  prior to  completion  of  schematic
     drawings and final  construction  documents  which result in a Change Order
     and additional costs, such costs shall be the responsibility of the Lessee.
     Similarly,  any cost savings  resulting from such Change  Order(s) shall be
     credited to Lessor's Allowance.

9.   Prior  to  Lessee's  occupancy  of the  Expansion  Premises,  Lessee  shall
     identify  and list any  portion of The Work which does not  conform to this
     Workletter  Agreement  ("Punch  List").  The Lessor  shall  review with the
     Lessee all of the items so listed and  correct or  complete  any portion of
     The Work  which  fails to conform to the  requirements  of this  Workletter
     Agreement.

10.  The terms  contained  in the Lease  (which  include all  exhibits  attached
     thereto) constitute Lessor's agreement with Lessee with respect to the work
     to be performed by Lessor on Lessee's behalf. If the architectural drawings
     are in conflict with the terms of the Lease, then the Lease shall be deemed
     the controlling document.

11.  All  materials  and  installations  constructed  for the Lessee  within the
     Expansion   Premises   shall   become  the  property  of  the  Lessor  upon
     installation. No refund, credit or removal of said items is to be permitted
     at the termination of the Lease. Items installed that are not integrated in
     any such way with other  common  building  materials do not fall under this
     provision (e.g. shelving, furniture, etc.).

12.  It is agreed that  notwithstanding  the date  provided in the Lease for the
     Effective Date, the term shall not commence until Lessor has "substantially
     completed" all work to be performed by Lessor as hereinbefore  set forth in
     Paragraph 3 above and as set forth in the Lease; provided, however, that if
     Lessor shall be delayed in  substantially  completing said work as a result
     of:

     1.   Lessee's failure to approve the plans and specifications in accordance
          with Paragraph 2 hereof; or

     2.   Lessee's  failure to furnish  interior  finish  specifications,  i.e.,
          paint  colors,  carpet  selection,  etc., to Lessor by the fifth (5th)
          working day after  Lessor has  approved  the plans and  specifications
          submitted by Lessee referred to in Paragraph 2 hereof; or

     3.   Lessee's request for materials,  finishes or installations  other than
          Lessor's Building Standard; or

                               Exhibit B - Page 2


     4.   Lessee's changes in The Work; or

     5.   The performance of a person, firm, partnership or corporation employed
          by Lessee and the  completion  of the said work by said person,  firm,
          partnership or corporation;

     then the Effective  Date of the term of said Lease shall be  accelerated by
     the number of days of such delay and Lessee's obligation to pay Fixed Basic
     Rent and Additional Rent shall commence as of such earlier date.

13.  Lessor shall permit Lessee and its agents to enter the  Expansion  Premises
     prior to the  Effective  Date in order that Lessee may perform  through its
     own union  contractors such other work and decorations as Lessee may desire
     at the  same  time  Lessor's  contractors  are  working  in  the  Expansion
     Premises.  The  foregoing  license to enter  prior to the  Effective  Date,
     however, is conditioned upon:

     1.   Lessee's workmen and mechanics  working in harmony and not interfering
          with the labor employed by Lessor,  Lessor's  mechanics or contractors
          or by any other Lessee or its mechanics or contractors; and

     2.   Lessee  providing  Lessor with  evidence of Lessee's  contractors  and
          subcontractors carrying such worker's compensation, general liability,
          personal and  property  insurance as required by law and in amounts no
          less than the amounts set forth in Article 30 of the Lease.  If at any
          time such entry shall cause disharmony or interference therewith, this
          license may be withdrawn by Lessor upon forty-eight (48) hours written
          notice to Lessee.  Such entry shall be deemed controlled by all of the
          terms,  covenants,  provisions and conditions of said Lease, except as
          to the covenant to pay Fixed Basic Rent and  Additional  Rent.  Lessor
          shall not be liable in any way for any  injury,  loss or damage  which
          may occur to any of  Lessee's  decorations  or  installations  so made
          prior to the Effective Date, the same being solely at Lessee's risk.

14.  No part of the Expansion Premises shall be deemed unavailable for occupancy
     by the Lessee,  or shall any work which the Lessor is  obligated to perform
     in such part of the Expansion Premises be deemed incomplete for the purpose
     of any adjustment of Fixed Basic Rent payable hereunder,  solely due to the
     non-completion  of  details  of  construction,   decoration  or  mechanical
     adjustments  which are minor in character and the  non-completion  of which
     does not  materially  interfere  with the  Lessee's use of such part of the
     Expansion Premises.

15.  Lessee is responsible  for all costs related to the repairs and maintenance
     of any additional or  supplemental  HVAC systems,  appliances and equipment
     installed to meet Lessee's specific  requirements.  Lessee shall purchase a
     service  contract for this  equipment  so that the  equipment is covered by
     such service contract each year of the term of the Lease.

16.  If  construction  is to occur in a space  occupied by  Lessee's  employees,
     Lessee  shall be  liable  for all costs  associated  with a delay if Lessee
     shall fail to comply  with a  submitted  construction  schedule to relocate
     personnel,  furniture, or equipment.  These costs shall include, but not be
     limited to the following:

     1.   cost of construction workers time wasted; and

     2.   cost of any overtime work necessary to meet schedule deadlines; and

     3.   any other costs associated with delays in final completion.

17.  With  respect  to the  construction  work being  conducted  in or about the
     Expansion  Premises,  each  party  agrees to be bound by the  approval  and
     actions of their respective construction representatives. Unless changed by
     written   notification,   the  parties   hereby   designate  the  following
     individuals as their respective construction representatives:

FOR LESSOR: Frank Shea                           FOR LESSEE: Bill Bundenthal
            c/o Mack-Cali Realty Corporation     Par Pharmaceutical, Inc.
            11 Commerce Drive                    1 Ram Ridge Road
            Cranford, NJ 07016                   Chestnut Ridge, NY 10977

If the foregoing correctly sets forth our understanding, kindly sign this letter
agreement where indicated.

                               Exhibit B - Page 3


LESSOR:                                         LESSEE:

300 TICE REALTY ASSOCIATES L.L.C.           PAR PHARMACEUTICAL, INC.
By:   Mack-Cali Realty, L.P.
      Member

By:   Mack-Cali Realty Corporation,
      General Partner



By:   Michael A. Grossman                   By:   Dennis O'Connor
      -----------------------                     -------------------
      Michael A. Grossman                         Name: Dennis O'Connor
      Executive Vice President                    Title:VP-CFO

                               Exhibit B - Page 4