EXHIBIT 10.38
 
                       MULTI PRODUCT TECHNOLOGY TRANSFER
                       ---------------------------------
                       DEVELOPMENT AND LICENSE AGREEMENT
                       ---------------------------------
    
AGREEMENT, effective as of this 30th August 1994 (hereinafter referred to as the
"Effective Date"), by and between SCHEIN PHARMACEUTICAL, INC, 100 Campus Drive,
Florham Park, NY 07932, U.S.A., (hereinafter referred to as "Schein") and
ETHICAL HOLDINGS PLC, a company registered in the United Kingdom and having its
principal place of business at Corpus Christi House, 9 West Street,
Godmanchester, Cambridgeshire, PE18 8HG, U.K. (hereinafter referred to as
"Ethical").
    
                               WITNESSETH THAT:
                               ----------------    

WHEREAS, Ethical owns valuable Ethical Know-How (hereinafter defined) and has
sought Patent Rights (hereinafter defined) relating to pharmaceutical
formulations designed to provide controlled release of active constituents from
solid dosage forms; and
    
WHEREAS, Ethical has a research and development capability in drug delivery
systems and pharmaceuticals in areas, including but not limited to, efficacy,
improved formulations and methods of drug delivery; and
    
WHEREAS, Schein desires that Ethical develop, as provided for in this Agreement,
****** **** ******** ** ****** **** ******** *** ** ***** *** ***********
******* ** ** *********** *** *** ** **** ****** ***** *** ******* ********* ***

WHEREAS, Schein has expressed an interest in entering into an agreement on terms
similar to those contained herein in respect of the development and marketing in
the United States of the ************* ******* *** ******* ** ******** **
********* ********* ******** ******** ** ************* ***

WHEREAS, Schein desires to effect the final product development and registration
with the regulatory authorities within the United States and outside of the
United States and to make the regulatory filings.
    
NOW THEREFORE, in consideration of the foregoing and the mutual covenants and
conditions set forth herein, the parties hereto mutually agree as follows:
    
1.   DEFINITIONS
     -----------

     1.1  In this Agreement, unless the context otherwise requires, the
          following terms shall have the meaning set forth in this clause:
    
          1.1.1  "Ethical" means ETHICAL HOLDINGS PLC, Corpus Christi House, 9
                 West Street, Godmanchester, Cambs., PE18 8HG, UK.
    

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                                    Page 1

 
          1.1.2  "Schein" means SCHEIN PHARMACEUTICAL, INC, 100 Campus Drive,
                 Florham Park, NY 07932, U.S.A.
    
          1.1.3  "Effective Date" means 30th August 1994.
    
          1.1.4  "Ethical Know-How" means all proprietary scientific and medical
                 information, technical data and marketing studies in Ethical's
                 possession or, from time to time invented or developed or
                 acquired by or on behalf of Ethical or under the control of
                 Ethical (other than Schein Know-How) relating specifically to
                 the registration, marketing, manufacture or use of its **** **
                 *********** **** ******** ********** as further detailed in
                 Schedule 1 including, but not limited to, toxicological,
                 pharmacological, analytical and clinical data, bioavailability
                 studies, product forms and formulations, control assays and
                 specifications, methods of preparation and stability data and
                 specifically including all information contained in all health
                 registration dossiers to be filed in various countries of the
                 world, and shall further include all Improvements and
                 Independent Third Party data which Ethical has access to and is
                 free to disclose without restriction or compensation to such
                 Independent Third Party (and relating to the Designated
                 Products). Notwithstanding the foregoing, the term 'Ethical
                 Know-How' shall not be deemed to refer to information and data
                 of the type which would not be required to be maintained as
                 confidential by either party pursuant to the provision of
                 Clause 22.

          1.1.5  "Schein Know-How" means all proprietary scientific and medical
                 information and technical data from time to time developed or
                 acquired by or on behalf of Schein (other than Ethical Know-
                 How) relating specifically to the manufacture or use of the
                 technology and all Improvements including, but not limited to,
                 toxicological, pharmacological, analytical and clinical data,
                 bioavailability studies, product forms and formulations,
                 control assays and specifications, methods of preparation and
                 stability data, and specifically including all information
                 contained in all health registration dossiers filed by Schein
                 relating to the Designated Products. Notwithstanding the
                 foregoing, the term 'Schein Know-How' shall not be deemed to
                 refer to information and data of the type which would not be
                 required to be maintained as confidential by either party
                 pursuant to the provision of Clause 22.

          1.1.6  "Patent Rights" means those patents and patent applications
                 listed in Schedule 2 and any and all patents and patent
                 applications filed
                                       
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                                    Page 2

 
                 by or issued to Ethical and licensed or assigned to Ethical
                 relating to controlled release formulations for oral
                 administration in man, or the manufacture or use of them,
                 together with any and all patents that may issue or may have
                 issued therefrom, including any and all divisions,
                 continuations, continuations-in-part, extensions, additions or
                 reissues of or to any of the aforesaid patent applications in
                 any country in which Ethical has filed, or hereafter files,
                 patents.

          1.1.7  "Prospective Development Products" means those pharmaceutical
                 compounds discussed by the parties and thereby listed in
                 Schedule 5 as amended from time to time.

          1.1.8  "Designated Products" means the Prospective Development
                 Products selected by Schein pursuant to Schedule 3 and which
                 thereby are no longer included in the definition of Prospective
                 Development Products.

          1.1.9  "Designated Product Extensions" means additional dosages,
                 strengths, indications, changes to specifications,
                 manufacturing procedures or regulatory compliancies of a
                 Designated Product in addition to those detailed in the
                 original Designated Development Programme.
                     
          1.1.10 "Territory" means the entire world except in respect of the
                 ************* Product in which case it shall mean solely the
                 United States, its territories and possessions.
    
          1.1.11 "Net Sales" means the gross sales of a Designated Product
                 actually invoiced by Schein or Schein's sublicensee hereunder
                 to an Independent Third Party, less chargebacks and rebates,
                 the total ordinary and customary trade discounts (but not
                 including cash discounts for prompt payments), rebate for
                 inventory price protection to counter competitive pressures,
                 excise taxes, other consumption taxes, customs duty, credits
                 and allowances actually granted on account of rejection or
                 return.

          1.1.12 "Independent Third Party" means any party other than Ethical
                 and Schein and their respective subsidiaries and affiliates.
                 
          1.1.13 "Agreement" means this agreement duly signed by the parties.
    
          1.1.14 "Designated Development Programme" means the programme of
                 development selected by the Notice under Schedule 3 containing
                 at least the obligations set forth in Schedule 4 prepared by
                 Ethical and


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                 approved by Schein for the development of a Designated Product
                 for manufacture, use, promotion, distribution and sale in the
                 United States. Each Designated Development Programme may be
                 amended from time to time by the addition of Designated Product
                 Extensions or exclusion of any Granted Territory or as set out
                 under Clause 12 and Schedule 3, Clause 2.7, or otherwise as
                 agreed between the parties.

          1.1.15 "Multi Product Development Programme" means the overall
                 programme of development in respect of all the Designated
                 Development Programmes.

          1.1.16 "FDA" means the United States Food and Drug Administration.

          1.1.17 "Marketing Authorisations" means the consent or approval of the
                 FDA and any applicable comparable state agencies required to
                 market and distribute a Designated Product in the United
                 States, its territories and possessions or the consent or
                 approval of any government or any governmental agency required
                 to market and distribute a Designated Product outside of the
                 United States.

          1.1.18 "Improvements" means inventions, discoveries, developments,
                 ideas and indications relating to the Ethical Know-How and
                 Patent Rights.

          1.1.19 "Granted Territory" shall mean those countries within the
                 Territory in which Ethical, by virtue of Clause 7 or Clause
                 11.4.8 has the right to use and licence the Patent Rights,
                 Ethical Know-How and Schein Know-How and to negotiate a licence
                 or other commercial arrangement with respect to the use, making
                 and/or manufacture, promotion, marketing and sale of a
                 Designated Product.
                 
          1.1.20 "Quarter" shall mean any of the four quarters commencing 31st
                 August, 30th November, 28th February and 31st May of any year.
                     
     1.2  In this Agreement

          1.2.1  the singular includes the plural and vice versa, the masculine
                 includes the feminine and vice versa and references to natural
                 persons include corporate bodies, partnerships and vice versa.

          1.2.2  any references to Clause or Schedule shall, unless otherwise
                 specifically provided, be to a Clause or Schedule of this
                 Agreement. All the Schedules of this Agreement shall have the
                 same force and




                                    Page 4

 
                 effect as if they were set out in the main body of the
                 Agreement.

2.   WARRANTY
     --------

     2.1  Ethical warrants that it is exclusive owner of all rights, title and
          interest in and to the Patent Rights and Ethical Know-How and that it
          is free to enter into this Agreement and to carry out all of the
          provisions hereof including its agreement to grant to Schein an
          exclusive licence with the right to grant certain sub-licences with
          respect to the Designated Products in the Territory without any
          consents from any third parties.

     2.2  Ethical represents and warrants that the Designated Development
          Programmes shall be in accordance with current Good Laboratory
          Practices and current Good Manufacturing Practices, as per statute and
          regulations of the FDA and with the laws and regulations of any other
          governmental authority applicable thereto and that all laboratory,
          scientific, technical and/or other data submitted by or on behalf of
          Ethical relating to a Designated Product shall be true and correct and
          shall not contain any deliberate or negligent falsification,
          misrepresentation or omission.
                 
     2.3  Each of Ethical and Schein represents and warrants to the other that
          it is not currently debarred, suspended or otherwise excluded by any
          United States governmental agency from receiving Federal contracts.
          
3.   LICENCE GRANT  
     -------------

     3.1  Subject to Clause 3.5 below, Ethical hereby grants to Schein, for the
          Term (as hereinafter defined) of this Agreement the exclusive right
          under the Patent Rights and Ethical Know-How with the right to
          sublicence to make and/or manufacture, use, promote, market,
          distribute and sell the Designated Products in the Territory.
                 
     3.2  All proprietary rights and rights of ownership with respect to the
          Patent Rights, and Ethical Know-How shall, at all times, remain solely
          with Ethical and Schein shall have no proprietary rights in or to the
          Patent Rights and Ethical Know-How other than those specifically
          granted herein. All proprietary rights to Schein Know-How belong to
          and shall, at all times, remain solely with Schein, other than as
          specifically provided herein.
                 
     3.3  For the term of this Agreement, Ethical agrees that it will not,
          directly or indirectly, market, sell or distribute in the Territory,
          or develop or assist in the development for use, manufacture,
          marketing, promotion, sale or distribution in the Territory, any
          Designated Product except as provided in




                                    Page 5

 
          this Agreement
    
     3.4  For the avoidance of doubt Ethical shall have a continuing right to
          make, have made and use for its own investigational and developmental
          purposes (but not sell, directly or indirectly in, or to the
          Territory) any Designated Product in the Territory. If Ethical
          acquires or develops Improvements for the Designated Products it shall
          make these available to Schein as part of the licence granted 
          hereunder.

     3.5  For the avoidance of doubt the rights granted to Schein shall not
          affect or prejudice Ethical's ability, at the request of Independent
          Third Parties, to use the Ethical Know-How and Patent Rights to
          formulate new chemical entities and/or new active compounds (other
          than the Designated Products) for marketing and sale in the Territory.
                 
4.   SELECTION OF DESIGNATED PRODUCTS
     --------------------------------
    
     4.1  Schein agrees to select, in accordance with Schedule 3, ** ********
          ********** ******** **** *** *********** *********** *********

     4.2  On the date on which each Prospective Development Product is selected
          by Schein in accordance with Schedule 3 and thereby becomes a
          Designated Product, the following provisions will apply from that date
          to each such Designated Product.

          4.2.1  Schein and Ethical shall immediately start work under the
                 Designated Development Programme for the Designated Product.

          4.2.2  In the event that Designated Product Extensions are requested
                 by Schein and mutually agreed then the Designated Development
                 Programme shall be amended by Ethical and Schein to reflect
                 such agreed amendments.

          4.2.3  For the period starting with the Effective Date and ending with
                 the first commercial sale of the Designated Product in the
                 Territory to an Independent Third Party, Ethical shall report
                 to Schein on a monthly basis the progress of the Designated
                 Development Programme of the Designated Product. Ethical will
                 use all reasonable efforts to carry out the Designated
                 Development Programme in accordance with the timetable set
                 forth therein subject to Clause 12. Ethical will carry out the
                 Designated Development Programme in accordance with all
                 applicable laws and regulations including, without limitation,
                 applicable United States laws and FDA regulations.

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          4.2.4  Ethical will, on a continuous basis, provide to Schein any
                 Ethical Know-How developed, information acquired or development
                 planned in relation to the Designated Product and all
                 Improvements and modifications to the Designated Product.

          4.2.5  Ethical shall make available to Schein, on a reasonable
                 consultation basis without charge to Schein, such advice of its
                 technical personnel as may reasonably be requested by Schein in
                 connection with the Designated Development Programme.

          4.2.6  Schein shall disclose to Ethical and Ethical shall disclose to
                 Schein all reports or other knowledge they may possess with
                 respect to "adverse drug experiences" (as defined in
                 regulations promulgated by the FDA), mis-labelling, stability
                 failures or microbiological contamination with respect to the
                 Designated Product within 10 (ten) days of becoming aware of
                 same. With respect to "serious adverse drug experiences" (as
                 defined in 21 CFR #312.32 and #314.80 promulgated by the FDA),
                 Schein shall disclose to Ethical and Ethical shall disclose to
                 Schein all reports and other knowledge they may possess as soon
                 as possible, and in no event later than 2 (two) business days
                 of the receipt of such report or notification of the serious
                 adverse drug experience. The timing and content of such
                 disclosure shall comply with all FDA regulations applicable to
                 notification to the FDA with respect to such matters and shall
                 comply with the laws and regulations of any relevant country in
                 the Territory in which the Designated Product is promoted,
                 marketed, distributed and sold.
                 
          4.2.7  Throughout the term of each Designated Development Programme,
                 and in any event no less than 4 (four) times a year, Schein
                 shall furnish to Ethical any Schein Know-How and any other
                 information and data developed or acquired by or under the
                 control of Schein with respect to the Designated Product for
                 Ethical's use in any Granted Territory, and subject to
                 corresponding obligations of confidentiality as set forth
                 herein, all such Schein Know-How and information and data
                 without restriction and without additional compensation to
                 Schein, other than provided for in this Agreement, subject to
                 the following sentence. Schein shall be under no obligation to
                 provide any Schein Know-How, information or data to Ethical
                 hereunder if the disclosure of such would be in violation of
                 any bona fide agreement with any Independent Third Party and
                 such violation can be proved by Schein.

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5.   PAYMENT
     -------

     5.1  In consideration of the granting of the exclusive licence under Clause
          3 to use the Ethical Know-How and Patent Rights, Schein agrees to pay
          Ethical U.S.$ 5,000,000 (five million U.S. dollars) upon the signing
          of this Agreement.
                 
     5.2  The parties further agree that, subject to Clause 12 and Schedule 3,
          Clauses 2.7 and 2.8, Schein will pay Ethical the sum of $27,000,000
          (twenty seven million U.S. dollars), divided equally among the twelve
          (12) Designated Development Programmes (the "Notional Sums") such
          Notional Sums to be payable in accordance with Schedule 4, Clauses 2
          and 3.

     5.3  Each Quarter, Ethical shall prepare and send to Schein invoices in
          respect of the percentage amounts of the Notional Sums due (if any) in
          that Quarter under each Designated Development Programme. It is hereby
          agreed the total amount so invoiced shall, with the exception of any
          invoices in respect of payments due under Clause 3.8 of Schedule 4 and
          unless otherwise agreed in writing by the parties, be subject to a
          maximum of U.S.$********* **** ******* **** ******** per Quarter. Any
          such amounts shall be payable 30 (thirty) days after the date of
          Schein's receipt of the invoice.

     5.4  In the event that scientific results do not indicate that one or more
          of the Designated Product objectives can be obtained, or if any
          Designated Development Programme contemplated hereby is terminated or
          abandoned for any reason whatsoever, Schein may nominate or elect to
          apply the balance of the Notional Sums in respect of the Common
          Landmarks not therefore achieved under that Designated Development
          Programme at the date of nomination to

          5.4.1  an alternative Designated Development Programme;
   
          5.4.2  the development programme relating to nifedipine for **** ***
                 ***** daily administration as contemplated by the Licence &
                 Development Agreement dated 15th January 1993 between Schein
                 and Ethical;

          5.4.3  the development programme relating to ********* *** **** *****
                 ************** as contemplated by the Licence & Development 
                 Agreement dated 30th November 1993; or

          5.4.4  any Designated Product Extension.

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     5.5  For the first two nominations under Clause 5.4.1 above the amount of
          the Notional Sums paid up to the date of nomination (the "Paid Up
          Sum") in respect of the Designated Development Programme terminated or
          abandoned shall be credited against the alternative Designated
          Development Programme chosen. For the third and fourth nomination
          under Clause 5.4.1 an amount equal to the Paid Up Sum shall be 
          deferred and payable by Schein on successful completion of the 
          alternative Designated Development Programme.
    
6.   THIRD PARTY NEGOTIATIONS
     ------------------------
    
     6.1  Ethical hereby undertakes that for, either a period of 18 (eighteen)
          months beginning with the Effective Date for those Prospective 
          Development Products for which there are reference products as
          identified in Schedule 5 attached hereto, or for a period of 6 (six)
          months after the introduction of a reference product for those 
          Designated Products for which at the Effective Date there are no
          reference products as identified in Schedule 5 (and in no event less 
          than 18 [eighteen] months beginning with the Effective Date), or for
          such longer period as may be mutually agreed in writing between the
          parties, not to enter into any negotiations or discussions with any
          Independent Third Party in respect of any Prospective Development 
          Product.

     6.2  In the event that, subsequent to the period set out in Clause 6.1,
          Ethical enters into substantive negotiations or discussions with an
          Independent Third Party in respect of any Prospective Development
          Product it shall so notify Schein (the "Notice"). On receipt of the
          Notice by Schein, its General Counsel shall, subject to reasonable
          confidentiality undertakings, have the right to reasonable satisfy
          himself that such substantive negotiations or discussions are bona
          fide. Ethical may disclose to such Independent Third Party the
          existence of this Agreement but not the terms hereof, may not disclose
          Schein as a party to this Agreement and may not disclose the indentity
          of any Prospective Development Product except for the specific
          Prospective Development Product which is the subject of the
          negotiations.

     6.3  Upon receipt of the Notice, Schein shall have 8 weeks within which to
          inform Ethical in writing as to whether or not it wishes Ethical to
          prepare a development programme, as set out under Schedule 3, Clause
          2.3, in respect of the Prospective Development Product detailed in the
          Notice. If no such response is received by Ethical within such a
          period, Ethical shall not be under any obligation to consider any
          response received subsequently.

    
                                    Page 9

 
     6.4  Upon receipt of the development programme Schein shall have 8 weeks to
          notify Ethical in writing as to whether or not it wishes to select the
          development programme as the Designated Development Programme. If no
          such response is received by Ethical within such a period, Ethical
          shall not be under any obligation to consider any response received
          subsequently.

     6.5  For the avoidance of doubt, it is hereby agreed that Ethical may,
          whilst it is complying with its obligations as detailed in Clauses
          6.2, 6.3 and 6.4 continue its negotiations or discussions but not
          enter into any definitive agreement with any Independent Third Party
          in respect of any Prospective Development Product PROVIDED ALWAYS
          THAT, should Schein give notice as set out under Clause 6.3 and 6.4,
          Ethical shall promptly cease all such negotiations or discussions.

     6.6  In the event that Ethical subsequent to the Effective Date enters in
          to substantive negotiations with an Independent Third Party with
          respect to any product not included in Schedule 5 it shall have no
          obligation to so notify Schein.

     6.7  In the event that Ethical, subsequent to the period detailed in Clause
          6.1 and subsequent to Schein having selected all twelve Designated
          Products, enters into substantive negotiations with an Independent
          Third Party with respect to any Prospective Development Product
          Ethical shall give notice of the fact to Schein. Schein shall for a 
          period of 4 (four) weeks from the date of such notice have the right,
          subject to additional payments being agreed between the parties, to
          select in accordance with Schedule 3 that Prospective Development
          Product as a Designated Product in addition to the twelve otherwise
          contemplated herein. In the event that Schein does not so select that
          Prospective Development Product or in the event that the additional
          payments cannot be agreed within the four week period Schein's rights
          as set out in this Clause shall irrevocably lapse.
                 
7.   FIRST RIGHT OF REFUSAL
     ----------------------
    
     7.1  Within 24 (twenty four) months of the selection by Schein of a 
          Designated Product, Ethical shall notify Schein in writing of its
          interest in entering into a licence agreement or other commercial
          arrangement with an Independent Third Party for the use, manufacture,
          marketing, distribution, promotion and sale of that Designated Product
          in any country within the Territory (the "Request").
    
     7.2  If Schein agrees to grant the Request (such agreement to be sent to
          Ethical in a written notice within 4 [four] weeks of receipt by Schein
          of the



                                    Page 10

 
          Request) then Ethical shall have the unrestricted right to use and 
          sub-licence the Patent Rights and Ethical Know-How and Schein Know-How
          to make and/or manufacture, use, promote, market, distribute and sell
          that Designated Product in the relevant country (subject to reasonable
          and appropriate compensation being paid to Schein, such compensation
          to be based on the amount of work and money expended by Schein in
          respect of the Designated Product and the country detailed in the
          Request).
                 
     7.3  Any licence fee received by Ethical pursuant to Clause 7.2 shall
          belong exclusively to Ethical. Ethical agrees that Schein shall
          receive a minimum royalty of **** **** *** * **** ********  of net
          sales of each such Designated Product (but in no event less than the
          running royalty as provided in Clause 13.1) and the royalties shall be
          subject to Clauses 13, 14 and 15.

     7.4  The minimum royalty set out in Clause 7.3 may be subject to review and
          renegotiation in the event of intensive competative pressures, local
          pricing policies in any particular country in the Territory or any
          other factors which in either party's reasonable commercial opinion
          justify a review and the parties undertake to conduct such review and
          renegotiation in good faith.
    
8.   RUNNING ROYALTIES
     -----------------
    
     8.1  Schein shall pay to Ethical running royalties as follows:
    
          8.1.1  ** ****** ******** of the Net Sales of each Designated Product.
   
          8.1.2  Schein shall promptly give notice to Ethical of the date of
                 first commercial sale of each of the Designated Products in
                 each of the counties in the Territory.
                        
          8.1.3  In the event the royalty rates set forth immediately above
                 exceed those allowable by applicable law or governmental rule
                 or regulation, they shall be so modified as to conform to the
                 maximum royalty rate allowable.
    
          8.1.4  The obligation to pay running royalties hereunder shall
                 terminate with respect to sales of the Designated Product which
                 follow the termination of this Agreement.

          8.1.5  Royalty term may be subject to review and renegotiation in the
                 event of intensive competitive pressures, local pricing
                 policies in any particular country in the Territory or any
                 other factors which in
    

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                                    Page 11

 
                 either party's reasonable commercial opinion justify a review
                 and the parties undertake to conduct such review and
                 renegotiation in good faith.
    
9.   PAYMENT OF RUNNING ROYALTIES BY SCHEIN
     --------------------------------------    

     9.1  Running royalties due to Ethical under Clause 8 of this Agreement
          shall accrue when a Designated Product is invoiced by Schein.

     9.2  Running royalties accruing hereunder shall be due and payable on the
          45th (forty-fifth) day following the close of each fiscal quarterly
          period of Schein.

     9.3  Running royalties accruing hereunder shall be paid in U.S. dollars to
          Ethical or Ethical's designee, acceptable to Schein in its reasonable
          business judgement, duly named by Ethical in written notice to Schein.
                 
     9.4  Running royalties accruing hereunder shall be paid in U.S. dollars.

     9.5  If, at any time, legal restrictions in the Territory prevent the
          prompt payment of running royalties or any portion thereof accruing
          hereunder, the parties shall meet to discuss suitable and reasonable
          alternative methods of reimbursing Ethical the amount of such running
          royalties.
                 
10.  ROYALTY REPORTS BY SCHEIN
     -------------------------    

     10.1 Each payment of running royalties made to Ethical hereunder shall be
          accompanied by a written report, prepared and signed by a financial
          officer of Schein, showing the Net Sales for the months of the
          quarterly period for which payment is being made. In the event that no
          running royalty is due to Ethical hereunder for any such quarterly
          period, Schein shall so report.

     10.2 Schein shall maintain and keep, for a period of at least 3 (three)
          years or, if shorter, for such period as required by applicable U.S.
          federal or state law, complete and accurate records in sufficient
          details to enable any running royalties which shall have accrued
          hereunder to be determined.
                 
     10.3 Subject to Clause 10.2 above, and upon the request of Ethical, but not
          exceeding once in any one yearly period, Schein shall permit an
          independent public accountant, selected by Ethical and acceptable to
          Schein, which acceptance shall not be unreasonably withheld, to have
          access (subject to reasonable confidentiality undertakings) to such of
          the records of Schein as may be necessary to verify the accuracy of
          the royalty reports and payments submitted to Ethical hereunder. Any
          such inspection
                 
                                    Page 12

 
            of Schein's records shall be at Ethical's expense except that, if
            any such inspection reveals an underpayment in an amount of running
            royalty actually paid to Ethical hereunder in any quarterly period
            of 5% (five percent) or more of the amount of such running royalty
            actually due to Ethical hereunder, then the expense of such
            inspection shall be borne by Schein instead of by Ethical. Any
            amount of discrepancy shall be paid promptly to Ethical.
    
11.  PROJECT MANAGERS & REPORTING
     ----------------------------

     11.1   In order to establish and maintain clear and effective
            communication, each party shall appoint one of their senior managers
            (a "Programme Director") to supervise and co-ordinate its
            obligations hereunder and act as the principal interface with the
            other party and deal with all matters relating to corporate
            liaisons. Each party will promptly, after execution of this
            Agreement, notify the other of its senior manager chosen to
            discharge such responsibility. Either party may change the Programme
            Director chosen provided that notice of the change is promptly given
            to the other party.
                 
     11.2   Each Programme Director shall be responsible for:
    
            11.2.1 the appointment of employees to be directly responsible for
                   each of the Designated Development Programmes (the "Project
                   Managers")

            11.2.2 co-ordination and dissemination of all information within
                   their own organisation; and

            11.2.3 dealing with all matters relating to the Designated
                   Development Programmes and obtaining resolution of any
                   disputes relating thereto.
    
     11.3   Status meetings between the Programme Directors and/or Project
            Managers and/or other employees will be held on a quarterly basis at
            mutually agreed locations to review the status of the work being
            performed under the Designated Development Programmes. The status
            meetings will be chaired by Ethical.

     11.4   Status meetings between the chairmen of Ethical and Schein and/or
            other management and/or employees will be held on a half yearly
            basis at mutually agreed locations. The meetings will be chaired
            alternately by Ethical's and Schein's Chairmen respectively. The
            agenda for such meetings shall include a review of the Multi Product
            Development Programme and a progress report and an assessment of
            each Designated Development
                 
                                    Page 13

 
            Product. The Programme Directors will deliver reports at such
            meetings, such reports to include at least the following
            information:

            11.4.1 the current status of each party's activities on each
                   Designated Development Programme;

            11.4.2 each party's planned activities for the next reporting period
                   in respect of each Designated Development Programme;

            11.4.3 an expression of whether each party's activities are then on
                   schedule with each Designated Development Programme and, if
                   not, a description of why not and what actions are necessary
                   to return to the Designated Development Programme timetable;

            11.4.4 identification of actual and anticipated problems areas which
                   may affect each Designated Product being developed and
                   marketed by the estimated dates set out in each Designated
                   Development Programme;

            11.4.5 additions to or deletions from Schedule 5;
    
            11.4.6 a review of the costings included in each Designated
                   Development Programme;

            11.4.7 a review, exchange and update of any additional Ethical Know-
                   How or Schein Know-How; and

            11.4.8 a review of the effort being made by Schein to develop,
                   obtain Marketing Authorisation and commercialise each
                   Designated Product and a report by Schein on whether or not
                   it has made, or may forseeably make, the determination that
                   it does not intend to develop, obtaining Marketing
                   Authorisation or commercialise any one of the Designated
                   Products in any country in the Territory. In the event that
                   it is agreed Schein is no longer making or no longer intends
                   to make or is no longer able to make such effort then
                   Schein's right to commercialise that Designated Product in
                   that particular country of the Territory shall terminate and
                   Ethical shall have the rights as further detailed in Clause
                   7.2 in respect thereof and Schein shall be compensated as
                   contemplated by Clauses 7.2 and 7.3. Furthermore Schein shall
                   promptly execute and sign all such applications, instruments
                   and documents and do all such acts and things as may
                   reasonably be required by Ethical to transfer any Marketing
                   Authorisation obtained in respect of the Designated Product
                   in any applicable country in the Territory to Ethical or its

                                    Page 14

 
                   nominee and to enable Ethical or its nominee to be named any
                   enjoy the benefit of any such Marketing Authorisation to the
                   exclusion of Schein.
    
12.  ADDITIONAL WORK
     ---------------

     12.1   It is hereby agreed by the parties that the Notional Sums set out in
            Clause 5.2 are in consideration of Ethical carrying out its
            obligations as detailed in Schedule 4 under each Designated
            Development Programme in compliance with all applicable laws and
            regulations in order to achieve Marketing Authorisation in the
            United States and carry out its other obligations as provided in
            this Agreement.

     12.2   In the event that additional development activities are required to
            be undertaken by Ethical, other than as set out under Schedule 4, in
            order to achieve Marketing Authorisation in the United States any
            additional costs (the "Special Costs") connected with such work
            shall be included in the relevant Designated Development Programme.
            The additional work and Special Costs will be discussed and agreed
            with Schein in advance and the relevant Designated Development
            Programme will be amended accordingly.

     12.3   In the event that additional development activities are required in
            order to comply with applicable laws and regulations outside the
            United States (except in the Granted Territories) Ethical shall be
            entitled to undertake that work and make additional charges to
            Schein in respect of that work (the "Additional Charges"). The
            additional work and Additional Charges will be discussed and agreed
            with Schein in advance and the relevant Designated Development
            Programme will be amended accordingly.
                 
13.  MONIES DUE FROM ETHICAL 
     -----------------------
    
     13.1   ******* ***** *** ** ****** *** ******* ******** ** *** *******
            ******* ******** ******** ** ******* **** ** *********** ***** *****
            ***** * ******** ****** ** ************ ********* ** *****
            ********** *********** ******** ** *** **** ** * ********** *******
            ** *** ******* **********
    
14.  PAYMENT OF MONIES DUE FROM ETHICAL
     ----------------------------------

     14.1   The percentage of running royalties due to Schein under clause 13 of
            this Agreement shall accrue as and when running royalties are
            actually received by Ethical in respect of Designated Product sales
            in any Granted Territory in accordance with the provisions below.

     14.2   The percentage of running royalties accruing hereunder shall be due
            and
                 
* redacted pursuant to confidential treatment request

                                    Page 15

 
            payable on the 45th (forty fifth) day following the close of each
            fiscal quarterly period of Ethical.

     14.3   The percentage of running royalties accruing hereunder shall be paid
            in U.S. dollars to Schein or Schein's designee, duly named by Schein
            in written notice to Ethical.

     14.4   If, at any time, legal restrictions prevent the prompt payment of
            monies or any portion thereof accruing hereunder, the parties shall
            meet to discuss suitable and reasonable alternative methods of
            reimbursing Schein the amount of such percentage of running
            royalties.
                 
15.  ROYALTY REPORTS BY ETHICAL
     --------------------------    

     15.1   Ethical shall maintain and keep, for a period of at least 3 (three)
            years or, if shorter, for such period as required by applicable law
            complete and accurate records in sufficient details to enable any
            running royalties which shall have accrued hereunder to be
            determined.
                 
     15.2   Subject to Clause 15.1 above, and upon the request of Schein, but
            not exceeding once in any one yearly period, Ethical shall permit an
            independent public accountant, selected by Schein and acceptable to
            Ethical, which acceptance shall not be unreasonably withheld, to
            have access (subject to reasonable confidentiality undertakings) to
            such of the records of Ethical as may be necessary to verify the
            accuracy of the royalty reports and payments submitted to Schein
            hereunder. Any such inspection of Ethical's records shall be at
            Schein's expense except that, if any such inspection reveals an
            underpayment in an amount of running royalty actually paid to Schein
            hereunder in any quarterly period of 5% (five percent) or more of
            the amount of such running royalty actually due to Schein hereunder,
            then the expense of such inspection shall be borne by Ethical
            instead of by Schein. Any amount of discrepancy shall be paid
            promptly to Schein.
                 
16.  REGISTRATION AND APPROVAL OF THE DESIGNATED PRODUCTS
     ----------------------------------------------------
    
     16.1   Ethical and Schein agree that Designated Product development should
            progress as specified in Schedule 4, attached hereto and that they
            shall commit to their respective obligations the necessary resources
            to comply with the timetables of any Designated Development
            Programme.
                 
     16.2   Subject to any agreement to the contrary as contemplated by Clause
            11.4.8, Schein undertakes to use all reasonable endeavours to obtain
            Marketing Authorisations for each and every Designated Product in
            the Territory
                 
                                    Page 16

 
            (except for Marketing Authorisations in any Granted Territory) and
            to promptly submit all necessary applications for Marketing
            Authorisations in the Territory (except for Marketing Authorisations
            in any Granted Territory).
                 
     16.3   Schein shall bear the cost of all application fees to government
            authorities for Marketing Authorisations including, without
            limitation, new drug applications ("NDA") filed with the FDA or any
            other fees concerning approvals from government authorities
            necessary to commercialise the Designated Products in the Territory,
            other than Marketing Authorisations required in any Granted
            Territory. The Marketing Authorisations (except for any Marketing
            Authorisations in any Granted Territory) and all NDAs in the
            Territory shall be the sole and exclusive property of Schein.
                 
17.  DESIGNATED PRODUCT MANUFACTURE
     ------------------------------
    
     17.1   Schein undertakes to manufacture or have manufactured each
            Designated Product in the Territory and shall ensure such
            manufacturing shall comply with prevailing Good Manufacturing
            Practice for sale of the relevant Designated Product in the relevant
            country of the Territory (except in any Granted Territory). Schein
            may request Ethical to supply the Multipor coating materials
            required in connection with the manufacture of the Designated
            Products.
                 
     17.2   In the event that Ethical or upon mutual agreement a third party
            manufacturer is to supply a Designated Product to Schein, the supply
            price will be fully absorbed manufacturing costs plus *** ********
            ********, such costs to be defined and set out in a separate supply
            agreement to be mutually agreed upon between the parties.
                 
     17.3   Once in any yearly period, at the request of Schein, Ethical shall
            permit an independent public accountant selected by Schein and
            acceptable to Ethical, such acceptance not to be unreasonably
            withheld, to have access (subject to reasonable confidentiality
            undertakings) to such of the records and documentation of Ethical as
            may be necessary to verify that the supply price being charged to
            Schein is equal to the fully absorded manufacturing costs plus ***
            ******** ******** as set out in Clause 17.2.
                 
18.  TERM
     ----
    
     18.1   The term ("Term") of this Agreement shall come into force as of the
            Effective Date and, subject to clause 19, shall remain in force in
            respect of a Designated Product in each country in the Territory for
            a period of 16 (sixteen) years from the date of the first commercial
            sale to an Independent
    

* redacted pursuant to confidential treatment request


                                    Page 17

 
            Third Party of such Designated Product in such country of the
            Territory (except the Granted Territories) or the life of any
            patents issued in the applicable country in the Territory relating
            to such Designated Product and included in the Patent Rights,
            whichever is the longer.

     18.2   This Agreement shall automatically be extended thereafter for
            successive 1 (one) year periods unless;
    
            18.2.1 either party notifies the other of its decision not to renew
                   this Agreement at least 12 (twelve) months prior to the
                   commencement of any such renewal term; provided, however,
                   that the failure to extend this Agreement with respect to one
                   Designated Product in any country in the Territory shall in
                   no way affect the extension of this Agreement with respect to
                   such Designated Product in any other countries in the
                   Territory or other Designated Products for which no such
                   notice has been given; or

            18.2.2 it is mutually agreed in writing by both parties, and subject
                   to reasonable additional compensation being payable to
                   Ethical, to extend the Agreement in respect of a Designated
                   Product in any country in the Territory by a period of time
                   greater than 1 (one) year; provided, however, that an
                   agreement to extend this Agreement with respect to one
                   Designated Product in any country in the Territory shall in
                   no way affect the extension of this Agreement with respect to
                   such Designated Product in any other countries in the
                   Territory or other Designated Products for which no such
                   agreement has been reached.
    
19.  TERMINATION 
     ----------- 

     19.1   If any party shall go into liquidation either voluntary or
            compulsory (except for the purpose of amalgamation, reconstruction
            or restructuring previously approved of in writing by the parties
            hereto) or sell or dispose of its undertaking or the major part
            thereof or in any manner assign except as contemplated herein this
            Agreement or make any assignment for the benefit of creditors or
            cease or threaten to cease to carry on business or is unable to pay
            its debts as they fall due; or

     19.2   if a receiver or receiver and manager or judicial manager or
            administrator is appointed for any party over the whole or any part
            of its assets and is not withdrawn within 30 (thirty) days of
            appointment; or

     19.3   if any party shall commit any material breach (whether remediable or
            not) of its obligations under this Agreement and (if remediable)
            shall fail to
    
                                    Page 18

 
            remedy the breach within 90 (ninety) days of written notice,
            calculated from the date of receipt of such notice, given by the
            other party to the party required to do so
    
     then, upon the happening of any one or more of such events, the other party
     shall have the right forthwith by notice in writing to terminate this
     Agreement.

     19.4   Termination of this Agreement, due to the fault of either party,
            shall be without prejudice to any other rights or remedies then or
            thereafter available to either party under this Agreement or
            otherwise.
    
     19.5   The rights of either party to terminate this Agreement prior to
            the expiration of its Term shall not be affected in any way by that
            party's waiver of or failure to take action with respect to any
            previous breach hereunder.

20.  CONSEQUENCES OF TERMINATION 
     ---------------------------

     20.1   If this Agreement is terminated prior to the date of expiration
            above by fault of Schein;

            20.1.1 Schein and Ethical shall promptly make an accounting to one
                   another of the inventory of all Designated Products which it
                   has in the Territory and the Granted Territory, respectively,
                   if any, as of the date of such termination and said parties
                   shall thereafter have the right for a period of 6 (six)
                   months after said termination to sell such inventory of
                   Designated Product provided that the Net Sales thereof shall
                   be subject to the royalty provisions of Clauses 9 and 13
                   ****** ***** ** *************** ******* ** **** **** ***
                   ********* ***** ****** ***** and so payable to Ethical and/or
                   Schein as the case may be. Thereafter, any remaining
                   inventory of Designated Product shall be disposed of by
                   mutual agreement in accordance with regulatory requirements.
                   Clauses 8, 9, 10, 13 (as amended by this Clause 20.1.1), 14
                   and 15 shall survive such termination until all remaining
                   inventory of Designated Product has been sold.

            20.1.2 Ethical shall have the unrestricted right to use and
                   sublicence Schein Know-How and to make, manufacture, use,
                   promote, distribute and sell the Designated Products in the
                   Territory for the Term subject to reasonable and appropriate
                   compensation being payable to Schein by Ethical including
                   without limitation the royalties ************ ** ****** **
                   ******* ************** ** **** **** *** ********* *****
                   ****** *****

* redacted pursuant to confidential treatment request

    
                                    Page 19

 
     20.2   If this Agreement is terminated prior to the date of expiration
            above due to the fault of Ethical, Schein shall have the
            unrestricted right to continue to use and sublicence the Patent
            Rights and Ethical Know-How and to make, manufacture, use, promote,
            distribute and sell the Designated Products in the Territory for the
            unexpired balance of the Term, in which case Clause 8.1.1 shall read
            as if it contained the figure **** **** ***** **** ********. Clauses
            8 (as amended by this Clause 20.2), 9, 10, 13, 14, and 15 shall
            survive such termination.
    
     20.3   If any of the patents included in the Patent Rights is found by a
            court of applicable jurisdiction to be invalid or unenforceable in
            that jurisdiction in the Territory and as a result thereof an
            Independent Third Party would be entitled to manufacture or
            distribute and thereafter commercialises any of the Designated
            Products in that jurisdiction in the Territory utilising a part of
            the technology covered by the Patent Rights which would have a
            material impact on the Net Sales of that Designated Product and such
            impact can be shown, then Schein in its discretion may terminate
            this Agreement with respect to such Designated Product in that
            jurisdiction in the Territory or, at Schein's election, continue
            this Agreement in full force and effect with respect to such
            Designated Product in which case Clause 8.1.1 shall read as if it
            contained the figure of **** **** ***** **** ********* Clauses 8 (as
            amended by this Clause 20.3), 9, 10, 13, 14 and 15 shall survive
            such termination.

21   SCHEIN BREAK POINT
     ------------------

     21.1   Schein may terminate this Agreement by written notice to Ethical
            (the "Break Notice") in the event that it makes the determination
            for any reason that it is no longer able, or no longer wishes to
            fund the Designated Development Programmes according to the terms
            set out in this Agreement such termination to be effective 6 (six)
            months after receipt by Ethical of the Break Notice (the "Break
            Date"), Clauses 21.2, 21.3 and 21.4 shall survive such termination.

     21.2   Schein hereby undertakes that in the event it gives the Break Notice
            neither Schein, its affiliates nor in the event of any amalgamation,
            reconstruction or restructuring the company succeeding Schein or its
            affiliates upon such amalgamation, reconstruction or restructuring
            shall for a period of time calculated from the Break Date an in
            accordance with the table in Clause 21.3 enter into any commercial
            arrangement in the Territory relating to the development, use,
            manufacture, promotion, marketing, distribution or sale (the "Non
            Compete Activity") of any of the Designated Products other than as
            set out in Clauses 21.4.1, 21.4.2, 21.4.3 and 21.4.4.

* redacted pursuant to confidential treatment request


                                    Page 20

 
     21.3   Break Date                       Period of Non Compete Activity

            within one year of the                       two years
            Effective Date
    
            between one and three                        three years
            years after the Effective
            Date
    
            more than three years after                  five years
            the Effective Date

     21.4   In the event that this Agreement is terminated by a Break Notice 
            Ethical, subject to Clause 21.5, shall have the unrestricted right
            to continue to use and sublicence the Patent Rights, Ethical Know-
            How and Schein Know-How and to develop, use, manufacture, promote,
            market, distribute and sell the Designated Products in the Territory
            except those Designated Products which at the date of Break Notice

            21.4.1 are already commercialised; or
    
            21.4.2 regulatory filings have been made in respect thereof; or

            21.4.3 such regulatory filings are to be made within the next 12
                   (twelve) months.
    
            21.4.4 for which pivotal bioavailability studies have already
                   commenced.
    
     21.5   For the Designated Products described in Clauses 21.4.1, 21.4.2, 
            21.4.3 and 21.4.4 above Schein shall, subject to the payment of
            royalties to Ethical in accordance with Clause 8 (which shall
            survive termination as contemplated in this Clause), have the
            unrestricted right to develop, use, manufacture, promote, market,
            distribute and sell such Designated Products in the Territory.

     21.6   Ethical shall pay Schein reasonable compensation, agreed to by 
            Schein, on a Designated Product by Designated Product basis in
            respect of those Designated Products not included in Clause 21.4.1,
            21.4.2, 21.4.3 and 21.4.4 in the event that it enters into
            satisfactory arrangement with an Independent Third Party in respect
            of such Designated Products.


                                    Page 21

 
22.  INFORMATION TRANSFER; CONFIDENTIALITY AND CO-OPERATION  
     ------------------------------------------------------

     22.1   Within 30 (thirty) days following the signing of this Agreement,
            Ethical shall provide to Schein copies of relevant Ethical Know-How.

     22.2   Each party shall hold in strict confidence any tangible information
            relating to the Prospective Development Products marked confidential
            received from the other party (or oral information which is reduced
            to tangible form within 30 [thirty] days of disclosure and noted to
            be confidential), unless such information:
    
            22.2.1 Is already in its possession;

            22.2.2 Is already in the public domain or knowledge at the time of
                   disclosure or later comes into the public domain or knowledge
                   without fault on the part of the recipient;

            22.2.3 Is subsequently disclosed to the recipient by a third party
                   who did not acquire it in confidence from the other party;

            22.2.4 Is required to be disclosed in connection with any legal
                   proceedings or in order to obtain permission to manufacture
                   of market at Designated Product in the Territory; or

            22.2.5 Is disclosed with the prior written consent of the other
                   party, such consent not to be unreasonably withheld.
    
            This provision shall remain valid for a period of 5 (five) years
            after termination of this Agreement.

     22.3   During the Term of this Agreement, at least semi-annually, Ethical
            shall furnish to Schein any Ethical Know-How and any other
            information and data developed or acquired by or under the control
            of Ethical with respect to the Designated Products. Ethical hereby
            acknowledges and agrees that Schein may use, within the Territory,
            all such Ethical Know-How and information and data without
            restriction and without additional compensation to Ethical, other
            than as provided in this Agreement, to make, have made, use and sell
            the Designated Products in the Territory as envisaged hereunder.

     22.4   During the Term of this Agreement, at least semi-annually, Schein
            shall furnish to Ethical any Schein Know-How and any other
            information and data developed or acquired by or under the control
            or Schein with respect to the Designated Products, and Ethical may
            use in any Granted Territory


                                      Page 22

 
            all such Schein Know-How and information and data without
            restriction and without additional compensation to Schein, other
            than provided for in this Agreement, subject to the following
            sentence. Schein shall be under no obligation to provide any Schein
            Know-How, information or data to Ethical hereunder if the disclosure
            of such would be in violation of any bona fide agreement with any
            Independent Third Party and such violation can be proved by Schein.
    
23.  INFRINGEMENT
     ------------

     23.1   Ethical and Schein each agree to notify the other in writing of any
            alleged infringement or potential infringement of any Patent Rights
            or any information or allegations impacting on the validity of any
            such Patent Rights, in the Territory promptly after becoming aware
            of the same.

     23.2   Upon the giving of such notice, Ethical and Schein shall immediately
            consult together to decide what steps shall be taken to prevent or
            terminate such infringement, and the parties shall take such steps
            as they shall so agree, including the institution of legal
            proceedings where necessary in the name of one of the parties of the
            joint names of Ethical and Schein as appropriate, in which event
            costs and expenses incurred and damages recovered shall be share in
            such proportions as the parties may agree.

     23.3   If, within 30 (thirty) days after such consultation that parties
            have failed to agree on the steps to be taken or the proportions in
            which costs and damages should be shared, Ethical may take such
            steps as it may decided and all damages recovered in any proceedings
            shall belong to Ethical.

     23.4   If, within 60 (sixty) days after such consultation Ethical does not
            take action against an alleged infringer or potential infringer or
            has failed to notify Schein of its intent to commence an action to
            terminate the alleged infringement or potential infringement, then
            Schein shall have the right to commence such action on its own
            behalf at its own cost and expense and to use Ethical's name in
            connection therewith, in which case any recoveries shall inure to
            the benefit of Schein.

     23.5   Schein and Ethical shall each provide all such assistance and co-
            operate, including the furnishing of documents and information as
            may be required to give effect to such joint or independent action
            as may be taken under Clauses 23.2, 23.3 and 23.4 above.

     23.6   Ethical hereby represents that, to the best of its knowledge, none
            of the Patent Rights or Ethical Know-How infringe on the patent or
            other legally protected proprietary rights of any Independent Third
            Party, and it has not

                                    Page 23

 
            received any notice or claim of any such infringement worldwide.
            Ethical agrees to hold Schein harmless from any judgements, losses
            or costs (including reasonable attorney's fees) incured in the event
            a claim or legal action is asserted against Schein to the effect
            that the manufacture, use or sale of the Product infringes the
            patent rights or other legally protected proprietary rights of any
            Independent Third Party PROVIDED ALWAYS THAT Schein fulfils its
            obligations under Clauses 23.1 and 23.5 above and that Schein has
            made no admission of liability either in whole or in part without
            Ethical's consent (such consent not to be unreasonably withheld).

     23.7   Ethical and Schein shall each give to the other prompt written
            notice of any claim or action made against either of them alleging
            that any of the Patent Rights infringe the rights of an Independent
            Third Party and arising from the manufacture, use or sale of any
            Designated Product in the Territory. Ethical and Schein agree to co-
            operate and collaborate with each other in undertaking a full
            investigation of the situation and in taking such action as they
            shall agree is appropriate in the circumstances.

     23.8   Subject to Clauses 23.2 and 23.4 above, Ethical shall be solely
            responsible for, and bear the cost of, the prosecution and
            maintenance of the Patent Rights.

     23.9   The provisions of this Clause 23 shall survive termination of this
            Agreement.
    
24.  SURVIVAL OF REPRESENTATIONS, WARRANTIES AND AGREEMENTS   
     ------------------------------------------------------       

     24.1   Except as otherwise specifically provided in this Agreement, all
            representations, warranties and agreements contained in this
            Agreement shall survive the execution and delivery of this Agreement
            and remain in full force and effect regardless of any investigation
            made by or on behalf of either Ethical or Schein.
    
25.  ARBITRATION
     -----------

     25.1   All disputes arising in connection with the Agreement shall be
            settled under the Rules of Conciliation and Arbitration of the
            International Chamber of Commerce by one or more arbitrator in
            accordance with the said Rules, as follows:

     25.2   Each of the parties shall designate its arbitrator within 15
            (fifteen) days from notification by registered letter. The two
            arbitrators thus designated
    
                                    Page 24

 
            shall designate a third arbitrator within 30 days from designation
            of the second arbitrator, the said third arbitrator shall preside
            over the arbitration court. Arbitration should be held in London if
            Ethical initiates the request and if Schein initiates the request
            arbitration should be held in New York.
    
26.  DISCLAIMER OF AGENCY   
     --------------------

     26.1   The parties acknowledge that each of Schein and Ethical are
            independent contractors and nothing herein contained shall be deemed
            to create any relationship in the nature of agency, joint venture,
            partnership or similar relations between Schein and Ethical.
    
27.  SEVERABILITY
     ------------
     
     27.1   Whenever possible each provision of this Agreement shall be
            interpreted in such manner as to be effective and valid under
            applicable law, but if any provision of this Agreement should be
            prohibited or invalid under applicable law, such provision shall be
            ineffective to the extent of such invalidity without invalidating
            the remainder of such provision or the remaining provisions of this
            Agreement to the extent such modification does not impair or change
            the intent of the parties hereto.
    
28.  PARAGRAPH HEADINGS
     ------------------

     28.1   The subject headings of the Articles in this Agreement are included
            for the purposes of convenience only, and shall not affect the
            construction or interpretation of any of its provisions.
    
29.  TRANSFER OF RIGHTS AND OBLIGATIONS
     ----------------------------------

     29.1   This Agreement, in whole or in part, shall not be assignable by
            either party hereto to any Independent Third Party without the prior
            written consent of the other party hereto except that either party
            may assign this Agreement to an affiliated company or the successor
            or assignee of substantially all of its business. It is expressly
            understood and agreed by the parties hereto that the assignor of any
            rights hereunder shall remain bound by its duties and obligations
            hereunder.
    
30.  NOTICES
     -------

     30.1   Any notice required or report required or permitted to be given or
            made under this Agreement by either party to the other shall be in
            writing, sent by hand or by registered or express mail or courier,
            postage prepaid, telex or telefax, addressed to such other party at
            its address indicated at the

    
                                    Page 25

 
            beginning of this Agreement or to such other address as the
            addressee shall have last furnished in writing to the addressor, and
            shall be effective upon receipt by the addressee.
    
31.  DISCLOSURE        
     ----------        

     31.1   Ethical and Schein shall have the right, subject to the written
            approval of the other, to disclose to any Independent Third Party in
            connection with any announcement, news release, or for any other
            reason the existence of this Agreement but not the terms hereof.
            Notwithstanding the foregoing, each party shall have the right to
            make such disclosures relating to this Agreement as may be required
            by applicable laws and regulations.
    
32.  FORCE MAJEURE
     -------------

     32.1   Ethical and Schein shall not be liable for delays if such delays are
            due to force majeure case, such as strikes, disputes with workmen,
            failure of supplies from ordinary sources, fire, floods, earthquake,
            governmental regulation against the aims of this Agreement, war,
            legislation or any other cause, either similar or dissimilar to the
            foregoing, beyond the reasonable control of the parties which cannot
            be overcome by due diligence.
    
33.  FURTHER ASSURANCES
     ------------------

     33.1   From and after the Effective Date, without further consideration,
            Ethical and Schein shall, from time to time during the term of this
            Agreement, upon the request by the other, perform all actions and
            execute, acknowledge and deliver all such further documents or
            instruments as may be reasonably required to give effect to the
            purpose and intent of this Agreement.
    
33.  ENTIRE AGREEMENT: AMENDMENT
     ---------------------------  

     33.1   This Agreement contains the entire understanding of the parties with
            respect to the matters contained herein and supersedes any previous
            agreements and may be altered or amended only by a written
            instrument duty executed by both parties hereto.
    
                                    Page 26

 
     IN WITNESS WHEREOF, the parties hereto have executed this Agreement in
     duplicate originals.
    
     ETHICAL HOLDINGS PLC                    SCHEIN PHARMACEUTICAL INC.
     --------------------                    -------------------------



     
     Sign [SIGNATURE ILLEGIBLE]              Sign [SIGNATURE ILLEGIBLE] 
          ---------------------------             ----------------------------
    
     Print /s/ Dr. G. W. Guy                 Print /s/ MARTIN SPERBER 
          ---------------------------             ----------------------------



     Date 30th August 1994                   Date 30th August 1994
          ---------------------------             ----------------------------

                                    Page 27

 
                                  SCHEDULE 1
    
**      ********* ************ ******* ** *** **********

        *** ******* ************* ********* ** ******** ** ******* *** 
            *************

        *** ******** ************* ********* ** ******** ** ******* ***
            *************

        *** ********** ******** ** * ******* * *********** ********* ***** ****
            ******* **** ******* ****** *** ********

        *** *********** ********** ** ******* ** *** ************* ********

**      ************ *** ** ***** **** **** ** **** ** ********* **** 
        ***********


* page redacted pursuant to confidential treatment request


                                  Page 1 of 1

 
                                  SCHEDULE 2
                                  ----------

    
******* *** ****** ************ ******** ** *** ************ ********** *******
*********** ***** ****** ** *** ********* ******

* redacted pursuant to confidential treatment request

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                                  SCHEDULE 3
                                      
1.   Selection of Designated Products
     --------------------------------

     1.1  Subject to Clause 1.2 of Schedule 3 Schein shall, for a period of no
          longer than 24 (twenty four) months from the Effective Date, select at
          least (one) Designated Product each and every 2 (two) months in
          accordance with Clause 2 hereunder subject to a maximum of 12 (twelve)
          such Designated Products.

    1.2   In the event that Schein wishes to select the Buprenorphone Product
          (as defined in Schedule 5) it must do so in accordance with Clause 2
          hereunder and prior to the 31st January 1995. Any attempt to select 
          the ************* Product by Schein at any time subsequent to 31st
          January 1995 shall, unless Ethical agrees otherwise in writing, be
          invalid and of no effect.
    
2.   Selection Procedure
     -------------------     

     2.1  On a continuous basis Ethical and Schein will discuss the commercial
          possibilities of the Prospective Development Products listed in
          Schedule 5, as amended from time to time. Such discussions to include,
          but not be limited to, the appropriate technologies, commercial 
          opportunities, project plans and development work.

     2.2  In the event that Schein decides it wishes to proceed with further
          investigations of a Prospective Development Product, it shall request
          in writing that Ethical prepares a development programme.

     2.3  Ethical shall have one month to prepare the development programme in
          accordance with Schedule 4 and send the same to Schein.

     2.4  Schein shall then decide, after further discussions between the 
          parties if necessary, whether or not it wishes to select that Possible
          Development Product as a Designated Product and that it wishes to
          select the development programme as the Designated Development
          Programme. In the event that it does, it shall notify Ethical of the
          fact in writing (the "Notice").
    
     2.5  On receipt of the Notice, Ethical shall immediately commence the
          Designated Development Programme for the Designated Product. A copy of
          the Designated Development Programme shall be attached to this
          Schedule 3.


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     2.6  In the event that Ethical exercise its rights under Clause 6 this
          shall be reflected in amendments to the Designated Development
          Programme.

     2.7  Any amendments to the Designated Development Programme agreed by the
          parties subsequent to Ethical's receipt of the Notice including, but
          not limited to, any Additional Charges, Designated Product Extensions,
          Special Charges or additional landmarks, shall be clearly evidenced in
          that Designated Development Programme. Additional monies due as a
          result of such amendments shall also be clearly evidenced in that
          Designated Development Programme.
    
     2.8  In the event that Schein selects the ************* Product as a 
          Designated Product Ethical shall be entitled, in addition to any other
          monies due hereunder, to a further payment of US$********* ****
          ********* **** ******* ******** ** dollars) on the date of Schein
          obtaining the United States Marketing Authorities approval of either
          the ********* ** ****** ********* ********** whichever is the earlier.

     2.9  Any licence granted to Schein by Ethical for the ************* Product
          shall be only in respect of the United States and shall be exclusive
          in respect of the ********* ********** and non exclusive in respect
          of the ****** ********* ********** to the extent of the rights of the
          innovator of such product existing at the Effective Date.
          
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                                SCHEDULE 4
                                ---------- 

   
    Designated Development Programmes.
    ---------------------------------
    
    1.  Each Designated Product shall have a Designated Development Programme
        prepared by Ethical and reviewed and approved by Schein which describes
        the ******* *********** *********** ******* ************ *** **********
        ******** ** ** ******** ** ****** ********** ******** ** ******* *******
        *** ********** *** ********** ******* ** *** ********** ** ***********
        *** ********** *********** ********* **** ******* *** *********** **
        ******* **** ******* ** ************** ************ ********* ********
        *********** ******** ***** *************** ******* *** ******* 
        ********** ******** *** *** *********** ** ****** **** ******* ** ***
        ******* ******* ******* ********** ******* *** **********
        ************ ********* ********** **** ***** ************* *********
        ************ ********** ** **** ******* ** *** ********* ******* ***
        ******* ************* *** ********** *********** ********* *** **
        ******* **** **** ** **** ** *** ****** ******* ** *** ******* ** *****
        ** ******** ******** ******* *** ********** ************* ******* *****
        ***** ** ******** ** ******* *********** **** **** ******* ** ***
        ********** ******* ****** ** *** ***** ** *** ********** ***********
        ********* ** **** **** ** **** ** ** ******

    2.  Each Designated Development Programme will identify ** ***** ***
        ********** *** *** ** ****** * ***** **** ******* ************ ***
        ********** ** ********** ** ***** **** ********

        2.1  * ********** ******* ** *** ******** *** ** ********** ** ****
             ****** ********* ***

        2.2  * ******* ** ********** ******* *** ******* ******** ** *******
             ******** ** *** ********** *** ********** ** **** ****** *********

    3.  ******* ** ******** * ****** *** *** ****** *** *** ****** ********* ***
        ********** ******** ** *** ******** *** ****

                                                     ********** ******* **
             ****** ********                          ******** *** ***
             ***************                          **************** 

        3.1  ********* ** * ********** *******
             ** *** *** ** ******** **                       ***

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                                  SCHEDULE 4
                                  ----------
    
     ***  ********** ** ********** *** *************
          ******* ** ************                                **
    
     ***  ************ ** *** ***** ***************
          ** ******** ******                                    ***
    
     ***  ********** ** *** **** *** *** ** *** ** ***
          ************ ** *** ******** *************
          **** ** ********** **********                         ***
    
     ***  ********** ** ***** ****** *********** *********
          ******* ** *** **** ********* *********** ** ***
          ********** ********                                    **
    
     ***  ********** ** *** *** ***** *************** **
          ******** ********                                     ***
    
     ***  ********** ** ************ *************
          ********** *********** ** *******                     ***

     ***  ********** ** *** ******* *************** ********    ***

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                                  SCHEDULE 5
                                  ----------   
    

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