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                                            ***TEXT OMITTED AND FILED SEPARATELY
                                               CONFIDENTIAL TREATMENT REQUESTED
                                           UNDER 17 C.F.R. SECTIONS 200.80(B)(4)
                                                            200.83 AND 240.24B-2



                              DATE 15 December 1999






                                    ASTRA AB


                                     - and -


                             CIMA LABORATORIES, INC.















                   -------------------------------------------

                                 LOAN AGREEMENT
                   -------------------------------------------


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                                               CONFIDENTIAL TREATMENT REQUESTED
                                           UNDER 17 C.F.R. SECTIONS 200.80(B)(4)
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THIS AGREEMENT is dated December 15, 1999 and made
BETWEEN:

1.       ASTRA AB, a company established and existing in accordance with the
         laws of Sweden under no. 556011-7482 whose headquarters is at S-151 85
         Sodertalje, Sweden ("Astra"); and

2.       CIMA LABORATORIES, INC., a corporation incorporated in the State of
         Delaware, United States of America under no. 2110839 whose principal
         place of business is at 10000 Valley View Road, Eden Prairie,
         Minnesota, USA 55344 ("CIMA").

WHEREAS

(A)      CIMA owns or has rights to certain oral drug-delivery technology
         marketed under the trademark OraSolv(R) and related know-how.

(B)      IPR has an exclusive license to make, have made, use and sell products
         containing the pharmaceutical drug [...***...] on a worldwide basis.

(C)      CIMA and IPR entered into a Development and License Option Agreement,
         dated  as  of  September  10,  1997  (the   "Development   Agreement"),
         [...***...]

(D)      CIMA entered into a License Agreement with IPR dated 28 May 1999
         ("the License Agreement") [...***...]

(E)      CIMA has requested that Astra lend, or procure the loan to CIMA of,
         the sum of US $3.5 million in order to assist CIMA in improving its
         operations and to help to assure availability and flow of the product
         from CIMA to Zeneca Limited (an affiliate of Astra).

(F)      The first launch of `Zomig' (R)rapimelt took place in Portugal in
         early September 1999 [...***...]


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                                               CONFIDENTIAL TREATMENT REQUESTED
                                           UNDER 17 C.F.R. SECTIONS 200.80(B)(4)
                                                            200.83 AND 240.24B-2



IT IS AGREED AS FOLLOWS:

1        Definitions and Interpretation

         1.1      Definitions

                  In this Agreement, unless the context otherwise requires:

                  "Anniversary Date" means the date one year after the first
                  Payment Date and the date marking the end of each subsequent
                  one year period;

                  "Banking Day" means a day (other than Saturday or Sunday) on
                  which banks are open for business in London and Minnesota;

                  "Change of Control" means if any person or persons acting in
                  concert (other than the current officers and directors of
                  CIMA), together with Affiliates thereof, shall in the
                  aggregate, directly or indirectly, control or own
                  (beneficially or otherwise) more than 50% of the issued and
                  outstanding voting stock of CIMA.

                  "Date of this Agreement" means the date upon which this
                  Agreement is signed and delivered by the latter of the parties
                  to sign and deliver it;

                  "Default" means any Event of Default or any event or
                  circumstance which would, upon the giving of notice by Astra
                  and/or the expiry of the relevant period and/or the
                  fulfillment of any other condition (in each case as specified
                  in clause 10.1) constitute an Event of Default;

                  "Encumbrance" means any mortgage, charge (whether fixed or
                  floating), pledge, lien, hypothecation, assignment, trust
                  arrangement or security interest of any kind securing any
                  obligation of any person or any other type of preferential
                  arrangement (including without limitation title transfer
                  and/or retention arrangements having a similar effect) but
                  does not include liens arising in the ordinary course of
                  trading by operation of law and not by way of contract;

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                  "Event of Default" means any of the events or circumstances
                  described in clause 10.1;

                  "Indebtedness" means any obligation for the payment or
                  repayment of money borrowed, whether as principal or as surety
                  and whether present or future, actual or contingent;

                  "Interest Period" means in relation to the Loan the three
                  month period commencing on the Date of this Agreement and each
                  subsequent three month period commencing on the last day of
                  the previous Interest Period provided that, if any Interest
                  Period would otherwise overrun a Payment Date falling during
                  that Interest Period then, in the case of the final Payment
                  Date, such Interest Period shall end on such Payment Date and,
                  in the case of any other Payment Date such Interest Period
                  shall end on and the next Interest Period shall start on that
                  Payment Date;

                  "IPR" means IPR Pharmaceuticals, Inc., a corporation
                  incorporated in Puerto Rico under no. 61,324 whose registered
                  office is at P O Box 1967, Carolina, 00984 Puerto Rico (an
                  Affiliate of Astra);

                  [...***...]

                  "Loan" means the term loan in a principal amount of US Dollars
                  Three Million five hundred thousand (US $3,500,000) to be
                  advanced to CIMA by Astra pursuant to the terms of this
                  Agreement or, as the context requires, the principal amount
                  owing to Astra under this Agreement at any relevant time
                  together with all interest accrued thereon and unpaid for the
                  time being.

                  "Maturity Date" means the date which is the third Anniversary
                  Date; provided, however, that if total royalties payable to
                  CIMA under the License Agreement prior to the third
                  Anniversary Date prior to any withholding thereof by IPR under
                  clause 4.1 or 4.2., are less than an aggregate of $3,500,000,
                  then the Maturity Date shall be extended for

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                                               CONFIDENTIAL TREATMENT REQUESTED
                                           UNDER 17 C.F.R. SECTIONS 200.80(B)(4)
                                                            200.83 AND 240.24B-2

                  a period of one year, and the Maturity Date shall thereafter
                  be extended for successive one-year periods until such
                  royalties payable have exceeded $3,500,000 in aggregate;


                  "month" means a period beginning in one calendar month and
                  ending in the next calendar month on the day numerically
                  corresponding to the day of the calendar month on which it
                  started, provided that (i) if the period started on the last
                  Banking Day in a calendar month or if there is no such
                  numerically corresponding day, it shall end on the last
                  Banking Day in such next calendar month and (ii) if such
                  numerically corresponding day is not a Banking Day, the period
                  shall end on the next following Banking Day in the same
                  calendar month but if there is no such Banking Day it shall
                  end on the preceding Banking Day and the expressions "months"
                  and "monthly" shall be construed accordingly; and

                  "OraSolv(R) Technology" means CIMA's effervescent,
                  fast-dissolving, oral drug delivery tablet technology as
                  defined in the License Agreement;

                  "Payment Dates" means each of the dates on which repayment
                  installments are due in respect of the Loan under clause 4.1;

                  "Product" or " `Zomig' rapimelt" shall mean the pharmaceutical
                  dosage form [...***...]

                  "Sale" means the disposal (whether by virtue of one
                  transaction or a series of related transactions) of all or not
                  less than 30% (by book value) of the assets of CIMA;

                  "Taxes" includes all present and future taxes, levies,
                  imposts, duties, fees or charges of whatever nature together
                  with interest thereon and penalties in respect thereof and the
                  expression "Taxation" shall be construed accordingly.

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                                               CONFIDENTIAL TREATMENT REQUESTED
                                           UNDER 17 C.F.R. SECTIONS 200.80(B)(4)
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1.2      Headings

         Clause headings are inserted for convenience of reference only and
         shall be ignored in the interpretation of this Agreement.

1.3      Construction of certain terms

         In this Agreement, unless the context otherwise requires:

         1.3.1   references to clazuses, parties, schedules and recitals are to
                 be construed as references to the clauses of, and the parties,
                 schedules and recitals to, this Agreement and references to
                 this Agreement include its schedules;

         1.3.2   references to (or to any specified provision of) this Agreement
                 or any other document shall be construed as references to this
                 Agreement, that provision or that document as in force for the
                 time being and as from time to time amended in accordance with
                 the terms thereof, or, as the case may be, with the agreement
                 of the relevant parties;


         1.3.3   words importing the plural shall include the singular and vice
                 versa;

         1.3.4   references to a time of day are to London time;

         1.3.5   references to a person shall be construed as including
                 references to an individual, firm, company, corporation,
                 unincorporated body of persons or any State or any agency
                 thereof; and

         1.3.6   references to any enactment shall be deemed to include
                 references to such enactment as re-enacted, amended or
                 extended.

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                                               CONFIDENTIAL TREATMENT REQUESTED
                                           UNDER 17 C.F.R. SECTIONS 200.80(B)(4)
                                                            200.83 AND 240.24B-2

1.4      Terms defined in the Supply Agreement or the License Agreement shall
         have the same meaning when used in this Agreement.

2        The Loan

         2.1   Astra relying upon each of the representations and warranties in
               clause 7, shall advance the Loan to CIMA within ten (10) days
               after the date of this Agreement, upon and subject to the terms
               of this Agreement.

         2.2   Astra shall advance the Loan by crediting CIMA's bank account no.
               with the sum of US$3,500,000 within (10) days after the Date of
               this Agreement. Details of such bank account are as follows:
               [...***...]

3        Interest

         3.1   Normal interest rate

               Interest shall accrue on the Loan in respect of each Interest
               Period at the rate per annum which is the aggregate of (a) one
               half of one percent cent, and (b) LIBOR (or, if clause 3.3.1
               applies, an alternative rate calculated in accordance with clause
               3.3.2). Such interest shall be compounded on the last day of each
               Interest Period and added to the principal amount of the Loan
               outstanding at such time.

         3.2   Default interest

               If CIMA fails to pay any sum (including, without limitation, any
               sum payable pursuant to this clause 3.2) on its due date for
               payment under this Agreement CIMA shall pay interest on such sum
               from the due date up to the date of actual payment (as well after
               as before judgment) at a rate of the aggregate of (a) two percent
               per annum, and (b) the interest rate in effect from time to time
               for the Loan pursuant to clause 3.1.

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                                               CONFIDENTIAL TREATMENT REQUESTED
                                           UNDER 17 C.F.R. SECTIONS 200.80(B)(4)
                                                            200.83 AND 240.24B-2


         3.3   Market disruption; non-availability

               3.3.1    If and whenever, at any time prior to the commencement
                        of any Interest Period Astra shall have determined,
                        [...***...]

               3.3.2    [...***...]

         3.4   [...***...]

4        Repayment

         4.1   On each date when any royalties fall due from IPR to CIMA under
               the License Agreement in respect of sales of Zomig Rapimelt,
               there shall become due and payable from CIMA to Astra such part
               of the Loan outstanding at that time (including accrued and
               unpaid interest thereon) as is equal to 50% of the royalty
               payment then due from IPR to CIMA (or, if less, the total amount
               of the Loan (including accrued unpaid interest thereon)
               outstanding at that time). Payment shall be made by CIMA to Astra
               in accordance with clause 6 and all other relevant provisions of
               this Agreement. On each Payment Date IPR shall be entitled to
               withhold up to 50% (except as provided in clause 4.2) of the
               amount of royalty then due to CIMA (or, if less, the total amount
               of the Loan (including accrued unpaid interest thereon)
               outstanding at that time), but only if CIMA has failed to make
               payment to Astra in whole or in part of the amount due on such
               Payment Date and only until such amount of principal and interest
               has been paid by CIMA to Astra. If IPR so agrees with Astra, IPR
               may apply to such withheld amount by way of set-off in repayment
               of an equivalent amount of the Loan (including accrued unpaid
               interest thereon). The License Agreement shall be deemed amended
               accordingly.

         4.2   If and when the Loan becomes repayable in full for any reason,
               then without prejudice to any other remedies Astra might have,
               IPR shall be entitled to withhold up to 100% of the amount of
               royalties due to CIMA from time to time (or, if less, the total
               principal amount of the Loan

   9

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                                           UNDER 17 C.F.R. SECTIONS 200.80(B)(4)
                                                            200.83 AND 240.24B-2

               (including accrued unpaid interest thereon outstanding at that
               time)), but only if CIMA has failed to make payment to Astra in
               whole or in part of the amount then due to Astra, and only until
               such amount has been paid by CIMA to Astra. If IPR so agrees with
               Astra, IPR may apply such amount(s) by way of set-off in
               repayment of an equivalent amount of the Loan (including all
               accrued unpaid interest thereon), until such time as the Loan
               (including all accrued unpaid interest thereon) have been repaid
               in full. The License Agreement shall be deemed amended
               accordingly.

         4.3   CIMA may at any time on a Banking Day prepay in whole or in part
               the outstanding amount of the Loan (including interest accrued
               thereon) without premium or penalty provided that any such
               pre-payment of part only of the Loan must be of not less than
               US$100,000 and subject to Astra being given not less than 5
               Banking Days' prior written notice of CIMA's intention so to
               repay the Loan or such part thereof.

         4.4   [...***...]

         4.5   [...***...]

5.       [...***...]

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                                           UNDER 17 C.F.R. SECTIONS 200.80(B)(4)
                                                            200.83 AND 240.24B-2

6.       Payments; accounts and calculations

         6.1   No set-off or counterclaim

               All payments to be made by CIMA under this Agreement (whether of
               principal or interest) shall be made in full, without any set-off
               or counterclaim whatsoever and, except as provided in clause 3.4,
               free and clear of any deductions or withholdings, on the due date
               to such account of Astra as Astra may from time to time specify
               for this purpose.

         6.2   Non-Banking Days

               When any payment under this Agreement would otherwise be due on a
               day which is not a Banking Day, the due date for payment shall be
               extended to the next following Banking Day.

         6.3   Calculations

               All interest and other payments of an annual nature under this
               Agreement shall accrue from day to day and be calculated on the
               basis of actual days elapsed and a 365 day year.

7        Representations and Warranties

         7.1   CIMA represents and warrants to Astra that:

               7.1.1    Corporate power to borrow

                        it has power to execute, deliver and perform its
                        obligations under this Agreement and to borrow the Loan;
                        all necessary corporate, shareholder and other action
                        has been taken to authorize the execution, delivery and
                        performance of the same and no limitation on the powers
                        of CIMA to borrow will be exceeded as a result of
                        entering into this Agreement;

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                                           UNDER 17 C.F.R. SECTIONS 200.80(B)(4)
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               7.1.2    Binding obligations

                        this Agreement constitutes valid and legally binding
                        obligations enforceable in accordance with its terms;

               7.1.3    No conflict with other obligations

                        the execution and delivery of, the performance of its
                        obligations under, and compliance with the provisions of
                        this Agreement will not:

                        7.1.3.1  contravene any existing applicable law,
                                 statute, rule or regulation or any judgment,
                                 decree or permit to which it is subject;

                        7.1.3.2  conflict with, or result in any breach of
                                 any of the terms of,  or  constitute  a default
                                 under,  any  agreement or other  instrument  to
                                 which  the it is a party  or is  subject  or by
                                 which it or any of its property is bound;

                        7.1.3.3  contravene or conflict with any provision of
                                 it's By-Laws or equivalent documents; and

               7.1.4    Default

                        No Default has occurred and is continuing  which has not
                        been waived in writing by Astra;

         7.2   Repetition

               The  representations and warranties in clause 7.1 shall be deemed
               to be repeated by CIMA on and as of each  Payment Date as if made
               with  reference to the facts and  circumstances  existing on each
               such day.

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                                           UNDER 17 C.F.R. SECTIONS 200.80(B)(4)
                                                            200.83 AND 240.24B-2

8        Undertakings

         8.1   CIMA undertakes with Astra that from the date of this Agreement
               and so long as any monies are owing under this Agreement, it
               will:

               [...***...]

         8.2   CIMA undertakes with Astra that, from the Date of this Agreement
               and so long as any monies are owing under this Agreement, without
               the prior written consent of Astra, it will not :

               [...***...]

9        Indemnities

         9.1   Miscellaneous indemnities

               CIMA shall on demand indemnify Astra, without prejudice to any of
               its rights under this Agreement, against any loss or expense
               which Astra shall certify as sustained or incurred by it as a
               consequence of the occurrence of any Event of Default.

10       Events of Default

         10.1  There shall be an Event of Default if:

         10.2  any sum due and payable by CIMA to Astra hereunder is not paid in
               full within 14 days after the due date; or

         10.3  CIMA shall be in breach of or fail to perform or observe any of
               the undertakings, conditions, covenants, agreements or
               stipulations on its part contained in this Agreement and which
               could have a material adverse effect on the ability of CIMA to
               comply with its payment obligations under this Agreement and, in
               the case of a breach capable of being remedied, fails to remedy
               that breach within thirty (30) days

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                                           UNDER 17 C.F.R. SECTIONS 200.80(B)(4)
                                                            200.83 AND 240.24B-2


               after receiving  written notice from Astra specifying that breach
               and requiring the same to be remedied; or

         10.4  if CIMA commits a breach of any the provisions of the License
               Agreement or of the Supply Agreement and, in the case of a breach
               capable of being remedied, fails to remedy that breach within
               thirty (30) days after receiving written notice from Astra
               specifying that breach and requiring the same to be remedied; or

         10.5  CIMA becomes insolvent or bankrupt, or admits in writing its
               inability to pay its debts as they mature, or makes an assignment
               for the benefit of creditors, or ceases doing business as a going
               concern, or CIMA applies for or consents to the appointment of a
               trustee or receiver for itself or for the major part of its
               property; or

         10.6  a trustee or receiver is appointed for CIMA or for the major
               part of its property and the order of such appointment is not
               discharged, vacated or stayed within thirty (30) days after such
               appointment; or

         10.7  any judgment, writ or warrant of attachment or of any similar
               process in an amount in excess of $250,000 shall be entered or
               filed against CIMA or against any of its property or assets and
               remains unpaid, unvacated, unbonded or unstayed for a period of
               thirty (30) days; or

         10.8  an order for relief shall be entered in any Federal bankruptcy
               proceeding in which CIMA is the debtor; or if bankruptcy,
               reorganization, arrangement, insolvency or liquidation
               proceedings, or other proceedings for relief under any bankruptcy
               or similar law or laws for the relief of debtors, are instituted
               by or against CIMA and, if instituted against CIMA, are consented
               to or, if contested by CIMA, are not dismissed by the adverse
               parties or by an order, decree, or judgment within sixty (60)
               days after such institution; or

         10.9  CIMA shall default in any material respect in the due and
               punctual performance of any covenant or agreement in any note,
               bond, indenture, loan agreement, note agreement, mortgage,
               security

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                                           UNDER 17 C.F.R. SECTIONS 200.80(B)(4)
                                                            200.83 AND 240.24B-2

                  agreement or other instrument evidencing or related to
                  Indebtedness in excess of $500,000, and such default shall
                  continue for more than the period of notice and/or grace, if
                  any, therein specified and shall not have been waived;

         10.10    CIMA suspends or ceases to carry on its business or any
                  material part thereof in the ordinary course of business as
                  now conducted; or

         10.11    any representation or warranty made by CIMA contained in this
                  Agreement becomes materially incorrect; or

         10.12    it becomes unlawful for CIMA to perform any of its obligations
                  under this Agreement.

         10.13    At any time after any Event of Default has occurred, Astra
                  shall without prejudice to its other rights hereunder be
                  entitled to demand immediate repayment of the Loan (including
                  accrued unpaid interest thereon) and all other sums due under
                  this Agreement.

11       General

         11.1     Benefit and burden

                  This Agreement shall be binding upon, and enure for the
                  benefit of, Astra, IPR and CIMA and their respective
                  successors.

         11.2     [...***...]

         11.3     [...***...]

         11.4     Without prejudice to clauses 4.1 and 4.2 CIMA hereby agrees
                  that Astra and IPR may at any time after an Event of Default
                  has occurred without notice set-off any sum owing by Astra or
                  IPR to CIMA against any sums due to Astra hereunder.

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         11.5     [...***...]

12       Notices and other matters

         12.1     Notices

                  Every notice, request, demand or other communication under
                  this Agreement shall:

         12.2     be in writing delivered personally, by facsimile transmission
                  or by first-class prepaid letter;

         12.3     be deemed to have been received, subject as otherwise provided
                  in this Agreement, in the case of a letter when delivered or
                  (if sent by airmail) 5 days after it has been put into the
                  post and in the case of facsimile transmission, on the date
                  the facsimile is received; and

         12.4     be sent:

                  to CIMA at:       10000 Valley View Road
                                            Eden Prairie, MN USA 55344
                                            Fax No: 612/947-8770
                  marked for the attention of: President and Chief Executive
                  Officer; and

                  to Astra at:      Vastra Malarehamnen 9
                                            S-151 36 Sodertalje
                                            Sweden
                                            Fax No:  08-553 290 00
                  marked for the attention of: Legal Affairs Department.

         12.5     or to such other address or for the attention of such other
                  person as is notified by CIMA or Astra to the other party to
                  this Agreement.

         12.6     No implied waivers, remedies cumulative

                  No failure or delay on the part of Astra to exercise any
                  power, right or

   16


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                                                            200.83 AND 240.24B-2

                  remedy under this Agreement shall operate as a waiver thereof,
                  nor shall any single or partial exercise by Astra of any
                  power, right or remedy preclude any other or further exercise
                  thereof or the exercise of any other power, right or remedy.
                  The remedies provided in this Agreement are cumulative and are
                  not exclusive of any remedies provided by law.

13       First Right of Refusal

         As further consideration for Astra agreeing to advance the Loan, CIMA
         hereby grants to Astra a first right of refusal to exploit any new
         technology to which CIMA may have the right from time to time and which
         may have application in conjunction with any technology or products of
         Astra or any of its Affiliates. Accordingly, CIMA may not grant to any
         third party the right to exploit any such technology if within one year
         from the date upon which CIMA notifies Astra of its intention to grant
         such a right to any third party, Astra (or one of its Affiliates) has
         entered into a license and development option agreement with CIMA in
         respect of such new technology for at least one application. For these
         purposes, CIMA agrees to negotiate any such agreement in good faith and
         that the terms of any such agreement shall be at least equivalent to
         those offered by CIMA to any third party.


14       Entire Agreement


         14.1     This Agreement contains the entire agreement and understanding
                  of the parties with respect to the Loan and supersedes all
                  prior agreements, written or oral with respect to the Loan.
                  Each party acknowledges that it has not been induced to enter
                  into this Agreement by reason of any representation made by or
                  on behalf of the other party.

         14.2     No variation to this Agreement shall be effective unless in
                  writing and signed by or on behalf of both parties.

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                                           UNDER 17 C.F.R. SECTIONS 200.80(B)(4)
                                                            200.83 AND 240.24B-2



15       Governing law and jurisdiction

         15.1     Law

                  This Agreement is governed by and shall be construed in
                  accordance with the laws of the State of Delaware without
                  regard to its choice of law provisions and each party submits
                  to the non-exclusive jurisdiction of the Federal courts of the
                  United States sitting in the State of Delaware and the courts
                  of the State of Delaware.

         15.2     The submission by the parties to such jurisdiction shall not
                  limit the right of Astra or CIMA to commence any proceedings
                  arising out of this Agreement in any other jurisdiction it
                  considers appropriate. Any notice of proceedings or other
                  notices in connection with or which would give effect to any
                  such proceedings may without prejudice to any other method of
                  service be served in accordance with Clause 12.

IN WITNESS whereof the parties to this Agreement have caused this Agreement to
be duly executed on the date first above written.

ASTRA AB (in the process of changing its name to AstraZeneca AB)

Signed /s/ Johannes Linda
Johannes Linda
Assistant General Counsel

December 13, 1999

CIMA LABORATORIES, INC.

Signed  /s/ John M. Siebert

Title  President and CEO

Date 15 December 99