1
                                                                   EXHIBIT 10.20

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



                                LICENSE AGREEMENT



This Agreement made this 29 day of December, 1999 by and between


1.   ORGANON INTERNATIONAL AG., a corporation duly organized and existing under
     the laws of Switzerland and having its registered offices at 160 B,
     Churerstrasse, P.O. Box 129, 8808 Pfaffikon, Switzerland,

     and

     N.V. ORGANON, a corporation duly organized and existing under the laws of
     The Netherlands and having its registered offices at Kloosterstraat 6, 5348
     AB, Oss, The Netherlands, on the one hand, jointly hereinafter referred to
     as "Organon",

     and

2.   CIMA LABS INC. a corporation duly organized and existing under the laws of
     Delaware and having its registered offices at 10000 Valley View Road, Eden
     Prairie , Minnesota 55344, USA, on the other hand, hereinafter referred to
     as "CIMA".


CIMA and Organon may hereinafter be referred to as "Party", or collectively as
"Parties".

WITNESSETH THAT:

CIMA has developed and owns or has rights to certain patented oral drug-delivery
technology referred to as Orasolv(R) which has applications in the field of
pharmaceutical product formulation;

[...***...]

On December 2, 1998, CIMA and N.V. Organon, the latter acting on behalf of
Organon International A.G., entered into a Development and License Option
Agreement under which prototypes of certain pharmaceutical product formulations
were developed by CIMA for N.V. Organon's evaluation subject to the granting of
an option to enter into a license agreement with CIMA;



   2
                                       2

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


The conclusion of a Toll Manufacturing Agreement within six (6) months after the
Effective Date regarding the manufacturing of the Product as defined in this
License Agreement is a condition for this License Agreement.

CIMA desires to enter into such a license agreement with Organon.

NOW, THEREFORE, in consideration of the foregoing and the mutual agreement as
set forth herein, the Parties agree as follows:

ARTICLE 1 DEFINITIONS

Whenever used in this Agreement, unless otherwise clearly required by the
context, the following terms shall have the meaning as defined hereinafter (in
alphabetical order) and shall include both the single and the plural.

1.1  The term "Affiliated Company" shall mean any company which by means of a
     majority of shares or otherwise, either directly or indirectly, controls,
     is controlled by or is under common control with either Party hereto.

1.2  The term "Effective Date" shall mean the date first written above.

1.3  [...***...]

1.4  The term "Know-How" shall mean and include any and all data, information
     and any experience or other data, in possession of CIMA, relating to the
     Product, including Manufacturing Know How.

1.5  The term "Manufacturing Know-How" shall mean and include any and all data,
     information and any experience or other data, in the possession of CIMA
     which is necessary for Organon to effectively and efficiently manufacture
     the Product.

1.6  The term "Net Sales" shall mean the total revenue from commercial sales
     received by Organon, its Affiliated Companies and/or (sub)licensee(s) from
     the sale to independent third parties of the Product subject to royalties
     hereunder less the following amounts:
     (i) discounts, including cash and quantity discounts, trade allowances or
     rebates actually allowed or granted,
     (ii) credits or allowances actually granted upon claims or returns,
     regardless of the party requesting the return,
     (iii) separately itemized freight charges paid for delivery



   3
                                       3

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



     (freight, postage, shipping)
     (iv) insurance costs,
     (v) taxes or other governmental charges levied on or measured by the
     invoiced amount and included in the invoice, whether absorbed by Organon or
     the third party (other than franchise or income taxes on the income of the
     selling party)
     (vi) amounts prepaid or credited on account of rejections, expired dating
     on return of Products.

1.7  The term "Patents" shall mean the patents, and patent applications (and any
     patents issuing on such applications) listed in Exhibit I hereto and any
     divisional, continuation and continuation-in-part applications thereof,
     reissues, reexaminations, substitutions, additions and any extensions to
     such patents as well as foreign counterparts thereof.

1.8  The term "Cima-Patents" shall mean the Patents excluding US patent nr.
     5,225, 197 d.d. July 6, 1993, and corresponding patents in other countries.

1.9  The term "Registration Dossiers" shall mean and include dossiers filed by
     Organon in the Territory with the relevant government institutions for the
     purpose of obtaining marketing approval for the Product in the name of
     Organon or its Affiliated Companies.

1.10 [...***...]

1.11 [...***...]

1.12 The term "Territory" shall mean the whole world.

1.13 The term "Toll Manufacturing Agreement" shall mean the Toll Manufacturing
     Agreement referred to in the preamble hereof.

1.14 [...***...]

1.15 The term "Patent Country" means a country in which one or more Patents
     covering the Product and/or its method of manufacture are in force and have
     not expired, been nullified or revoked.

1.16 The term "Non-Patent Country" means a country other than a Patent Country.

1.17 The term "Patent Country Sale" means a sale of Product in which the Product
     is transferred within a Patent Country;

   4
                                       4

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

     from a Patent Country to a Non-Patent Country; or from a Non-Patent Country
     to a Patent Country.

1.18 The term "Non-Patent Country Sale" means a sale of product other than a
     Patent Country Sale.

ARTICLE 2 GRANT OF LICENSES

2.1  [...***...]

2.2  [...***...]

2.3  Organon covenants that any third party to which it may sub-license certain
     rights hereunder as well as any third party distributor entrusted by
     Organon with the physical distribution of the Product, will be bound by the
     terms and conditions of this Agreement.

ARTICLE 3 TRANSFER OF MANUFACTURING KNOW-HOW

[...***...]

ARTICLE 4 CONFIDENTIALITY

4.1  It is understood and agreed by Organon, that all Know-How and other
     information and data disclosed by CIMA to Organon under this Agreement
     and/or under the Toll Manufacturing Agreement is and shall remain the
     exclusive property of CIMA. It is acknowledged by Organon that the Know-How
     and other information and data are only disclosed to Organon for the
     purposes and use described in this Agreement and that they are to be
     regarded as trade secrets containing unpublished results of private
     research and experience which are used in CIMA's business and which are of
     a nature customarily held in strict confidence and regarded as privileged
     knowledge; consequently any disclosure by Organon of Know-How information
     and data in violation of the obligation of this paragraph will harm and
     damage CIMA's legitimate business interests. Organon hereby undertakes to
     keep secret and confidential the know-How and above mentioned information
     and data during the term of this Agreement as well as thereafter and not to
     disclose the Know-How, information and data to any third party, person,
     government institution other than those referred to in Article 5, or
     Affiliated Company of Organon, or third party designated by Organon in
     compliance with Article 3, having a need to know such information and
     agreeing to comply with

   5
                                       5

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

     the terms of this Article 4, without CIMA's prior written approval and not
     to use it for any other use or purpose than those described in this
     Agreement.

4.2  The obligations described in paragraph 4.1 above shall not be applicable to
     any part of the Know-How or other information and data disclosed by CIMA
     under this Agreement which:

     - at the moment of disclosure, is general (public) knowledge;

     - after disclosure, through no fault of Organon or the government
       institution referred to in article 5, becomes general (public) knowledge;

     - properly and lawfully becomes available to Organon, from sources not
       bound to CIMA by a secrecy obligation, provided this can be adequately
       substantiated.

4.3  Organon will use the Product and the Know-How and other information and
     data of CIMA solely for the purposes specified in this Agreement and for no
     other purpose. Upon termination or expiration of this Agreement Organon
     hereby undertakes, upon such request from CIMA, to promptly return all
     documentation received from CIMA on which the Know-How is displayed and/or
     described and not to retain any copy or photocopy of such documentation and
     to stop any further use or disclosure of CIMA's Know-How and/or other
     information and data as referred to in paragraph 4.1 above, except one copy
     of all documents or other written material containing confidential
     information -to be kept in the files of its law department provided that
     reasonable measures are taken to limit access to such files- for the sole
     purpose of resolving future disputes concerning this Agreement.

ARTICLE 5 REGISTRATION AND MARKETING APPROVAL

Organon shall use its reasonable best efforts to have the registrations and
marketing approval for the Product in the Territory granted as soon as possible.
All expenses and fees in connection with the application and maintaining of the
registrations and marketing approval by Organon in the Territory shall be for
account of Organon. Organon shall own all registrations and marketing approvals
of the Product.

ARTICLE 6 PRICE APPROVAL

   6
                                       6

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

At the same time as the application for marketing approval, Organon shall file
with the relevant government institution
an application for price approval for the Product.

ARTICLE 7 PROMOTION

Organon shall use its reasonable best efforts to successfully commercialize the
Product within the Territory and agrees to use such reasonable best efforts in
particular to successfully promote the Product in the Territory. The amount of
effort to be applied to each region of the Territory is to Organon's discretion.

ARTICLE 8 PURCHASE AND SUPPLY OF PRODUCTS

The terms of the manufacture and supply of the Product will be contained in the
Toll Manufacturing Agreement.

ARTICLE 9 CONSIDERATION

9.1  [...***...]

9.2  [...***...]

9.3  [...***...]

9.4  [...***...]

9.5  [...***...]

9.6  Payments due shall be made within 30 days after receipt of the relevant
     invoices.

ARTICLE 10. MAINTENANCE OF PATENT, INFRINGEMENT

[...***...]

ARTICLE 11 WARRANTIES

11.1 CIMA warrants that:

     a)   CIMA is a corporation duly organized, duly existing and in good
          standing under the laws of the State of Delaware in the United States
          of America, with full right, power and authority to enter into and
          perform this Agreement and to grant all of the rights, powers and
          authorities herein granted;



   7
                                       7

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



     b)   The execution, delivery and performance of this Agreement do not
          conflict with, violate or breach any agreement to which CIMA is a
          party, or CIMA's articles of incorporation or bylaws;

     c)   CIMA has sufficient rights in the Know-How and the Patents to grant to
          Organon the rights set forth in Section 2.1. To the knowledge of CIMA
          the execution of the provisions of this Agreement does not infringe in
          any third parties proprietary rights.

     d)   CIMA agrees to indemnify Organon against any claim from any third
          party regarding any infringement by the Product or the process used to
          make the Product of third parties' US patents rights valid on the
          Effective Date. CIMA shall have the right to control the defense of
          any such claim provided that CIMA will not settle any such claim on
          terms requiring discontinuance of the Product without consent of
          Organon, which shall not be unreasonably withheld. Nevertheless,
          Organon shall perform research regarding the Product for possible
          conflicts with third parties proprietary rights valid in Europe. Such
          research shall be terminated within three (3) months after Effective
          Date. Organon shall assess the results of such research, and shall
          decide whether the results are satisfactory. An unsatisfactory result
          from such research shall be a condition to this Agreement. Any and all
          actions performed under this Agreement shall than be reversed.

11.2 Organon warrants that:

     a)   The companies herein defined as Organon are corporations duly
          organized, existing and in good standing under the laws of Switzerland
          and/or the Netherlands, with full right, power and authority to enter
          into and perform this Agreement and to grant all of the rights, powers
          and authorities herein granted;

     b)   The execution, delivery and performance of this Agreement do not
          conflict with, violate or breach any agreement to which Organon is a
          party, or the articles of incorporation or by laws of any of the
          companies defined herein as Organon;



   8
                                       8

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


c)   This Agreement has been duly executed and delivered by Organon and is a
     legal, valid and binding obligation enforceable against Organon in
     accordance with its terms.

ARTICLE 12 DURATION

12.1 This Agreement shall become effective as of the Effective Date and shall
     expire upon the expiration of the last Patent covering the Product.

12.2 Notwithstanding the preceding paragraphs, this Agreement may be terminated
     forthwith by registered mail or overnight courier:

     a)   by either Party in the event the other Party shall materially breach
          any of its obligations under this Agreement and shall fail to remedy
          such breach within ninety (90) days from receipt of written notice of
          such breach by the Party not in default; or

     b)   by either Party in the event of the other Party's liquidation,
          bankruptcy or state of insolvency; or

     c)   By either Party in case the other Party assigns this Agreement in
          whole or in part to any third party or sells a substantial part of its
          business to any third party or in the event there is a substantial
          change in the identity of that other Parties present management or
          shareholders without the prior written consent of the other Party.

     d)   By CIMA if the Toll Manufacturing Agreement has not been signed within
          (12) twelve months after the signing of this Agreement.

12.3 Articles Confidentiality, Indemnification, Miscellaneous and 15.1 shall
     survive termination of this Agreement.

ARTICLE 13 INDEMNIFICATION

13.1.CIMA will indemnify and hold Organon and Organon's Affiliated Companies
     harmless from and against all claims, suits and proceedings, and all
     damages, losses, costs, recoveries and expenses, including reasonable legal
     expenses and costs (including attorneys' fees) that Organon or Organon's
     Affiliated Companies may incur, arising out of any


   9
                                       9

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

     third party's claim of property damage or personal injury or death arising
     from the use of the Product or CIMA's negligent or willful misconduct in
     its performance of this Agreement or any breach of a representation or
     warranty given herein by CIMA. However, CIMA will in no event be liable for
     any such claims, damages, losses, costs or expenses to the extent they
     arise out of or result from materials, including the Substance, supplied by
     Organon to CIMA, or from Organon's or Organon's Affiliated Companies'
     negligence or willful misconduct.

13.2.Organon will indemnify and hold CIMA and CIMA's Affiliated Companies
     harmless from and against all claims, suits and proceedings, and all
     damages, losses, costs, recoveries and expenses, including reasonable legal
     expenses and costs (including attorneys' fees) that CIMA or CIMA's
     Affiliated Companies may incur, arising out of any third party's claim of
     property damage or personal injury or death arising from use of the Product
     to the extent that such liability results from Organon's or Organon's
     Affiliated Companies' negligent or willful misconduct in its performance of
     this Agreement or any breach of a representation or warranty given herein
     by Organon. However, Organon will in no event be liable for any such
     claims, damages, losses, costs or expenses to the extent they arise out of
     or result from materials supplied by CIMA to Organon, or from CIMA's or
     CIMA's Affiliated Companies' negligence or willful misconduct.

13.3.In the event any third party asserts a claim covered by Sections 13.1 or
     13.2, the indemnified party will give prompt notice to the indemnifying
     party, who may, at its election, handle and control the defense or
     settlement of the claim at its own expense by giving prompt notice to the
     indemnified party. However, the indemnifying party will not settle any such
     claim without the indemnified party's prior written consent, which will not
     be unreasonably withheld. If the indemnifying party does not give such
     notice and does not proceed diligently to defend the claim within thirty
     (30) days after receipt of notice, the indemnifying party will be bound by
     any defense or settlement that the indemnified party may make as to that
     claim and will reimburse the indemnified party for any expenses related to
     the defense or settlement of the claim. The parties will cooperate in
     defending against any asserted third-party claims. Indemnification of the
     indemnified party will also cover the indemnified party's directors,
     officers, employees, agents, Affiliated Companies, and third parties



   10
                                       10

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

     performing services for the indemnified party.

ARTICLE 14 APPLICABLE LAW AND DISPUTE RESOLUTION

14.1 The validity, construction and performance of this Agreement shall be
     governed by and construed in accordance with the laws of the State of
     Delaware.

14.2 The Parties shall attempt in good faith to resolve promptly any dispute
     arising out of or relating to this Agreement by negotiation. If the matter
     can not be resolved in the normal course of business any interested Party
     shall give the other Party written notice of any such dispute not resolved,
     after which the dispute shall be referred to more senior executives of both
     Parties, who shall likewise attempt to resolve the dispute.

14.4 If the dispute has not been resolved by non-binding means as provided in
     paragraph 14.3 above within forty-five (45) days of the initiation of such
     procedure, the dispute shall be finally and exclusively settled by
     arbitration by three independent arbitrators in Minneapolis, Minnesota
     under the Uncitral Arbitration Rules. Each party shall select one
     arbitrator, and those two arbitrators shall appoint the third by mutual
     agreement and in accordance with the Uncitral Arbitration Rules. The
     appointing authority shall be The London Court of International Arbitration
     in London, England. The language of the arbitration shall be English. The
     arbitration shall be in lieu of any other remedy and the award shall be
     final, binding and enforceable by any court having jurisdiction for that
     purpose. The Parties further agree that the arbitrators are not authorized
     to award punitive damages in connection with any controversy or claim
     settled by arbitration.

14.5 This Article shall, however, not be construed to limit or to preclude
     either Party from bringing any action in any court of competent
     jurisdiction for injunctive or other provisional relief as necessary or
     appropriate.

ARTICLE 15 NON CONCURRENCE AND NEW DEVELOPMENTS

[...***...]

ARTICLE 16 MISCELLANEOUS




   11
                                       11

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


16.1 Publicity. Except as may be required by law or regulatory authorities,
     neither party shall release or generate any publicity concerning the
     transactions contemplated hereunder without the express consent of the
     other party, which consent shall not be unreasonably withheld or delayed. A
     press release announcing this Agreement is attached as Exhibit III. The
     term "publicity" shall not include responses to press or trade inquiries or
     internal communications by either party directly or solely to its
     employees, provided, that such responses or communications do not describe
     the specific terms of the transactions contemplated hereunder in
     substantially greater detail than contained in a description of the
     transactions agreed to by both parties, and provided further, that each
     party will be free to provide employees with information required in the
     performance of their duties. Any party that determines applicable
     securities laws require it to file this Agreement shall first provide the
     other party a copy of the redacted version it intends to file and shall
     provide the other party the opportunity to comment thereon. Nonetheless the
     filing party will make the final decision regarding the version to file,
     based on the advice of its counsel.

16.2 Headings. All headings of the Articles and Paragraphs of this Agreement are
     added to those Articles and Paragraphs for the purpose of convenience only
     and the contents and meaning of such headings shall in no way limit the
     meaning and applicability of the relevant Articles and Paragraphs.

16.3 Entire Agreement. This Agreement, the Development and License Option
     Agreement and the Toll Manufacturing Agreement constitute the entire
     agreement between the Parties and annuls and replaces any other agreement
     or understanding whether written or oral which may have existed between the
     parties with respect to the subject matter hereof. All schedules and
     Exhibits referred to form an integral part of this Agreement. this
     Agreement can be modified or amended and rights under this Agreement waived
     only in writing signed by the Party to be charged.

16.4 No Assignment. Organon shall not assign or otherwise transfer this
     Agreement or any part thereof to any third party, without the written
     consent of CIMA.

16.5 Binding upon Successors. This Agreement shall bind and benefit the Parties
     and their respective successors and assigns.



   12
                                       12

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


16.6 Notices. All notices in connection with this Agreement shall be in writing
     and be in the English language (as shall all other written communications
     and correspondence) and may be given by personal delivery, prepaid
     registered airmail letter, telegram or telefax, addressed to the Party
     required or entitled to receive same at its address set forth below, or to
     such other address as it shall later designate by like notice to the other
     Party. Notice of termination of this Agreement if given by telegram or
     telefax, shall be confirmed by prepaid registered airmail letter dated and
     posted the same day. The effective date of any notice if served by
     telegram, telex or telefax shall be deemed the first business day in the
     city of destination following the dispatch thereof and if given by prepaid
     registered airmail letter only, it shall unless earlier received, be deemed
     served not later than seven (7) days after date of posting.

     Notice to Organon shall be to:
     Organon International AG
     Switzerland
     Telefax: + 41 55 4151998
     Attention: General Manager

     with a copy to:
     N.V. Organon
     PO Box 20
     5340 BH OSS
     The Netherlands
     Telefax: 31 412 646923
     Attention: President

     Notice to CIMA shall be to:
     CIMA Labs Inc.
     + 1 612 947 8770
     Attention: President

16.7 Severability. All stipulations contained in this Agreement shall be so
     construed as not to infringe any provision of any law prevailing to this
     Agreement. To the extent that, and only to the extent that, any stipulation
     does infringe any such provisions, said stipulation shall be deemed void
     and shall be replaced by a stipulation in such a way as in accordance with
     the prevailing law is possible and in such a way as will be the least
     prejudicable to the interest of either Party. The infringement of any
     provision by a stipulation shall not affect the validity of any other
     stipulation of this Agreement.


   13
                                       13

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

16.8 Independent Contractors. The Parties are independent contractors and
     nothing in this Agreement shall imply any principal or agent relationship
     or other joint relationship and neither Party shall have the power or
     authority, either express or implied, to obligate the other Party.

16.9 Language. This Agreement is written in the English language and executed in
     two (2) counterparts, each of which shall be deemed an original. The
     English language text of this Agreement shall prevail over any translation
     thereof.

16.10 No Waiver. Failure of either party to insist upon the strict and punctual
     performance of any provision of this Agreement shall not constitute a
     waiver of, or estoppel against asserting the right to require such
     performance, nor should a waiver or estoppel in one case constitute a
     waiver or estoppel with respect to a later breach whether of similar nature
     or otherwise.

16.11 [...***...]

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed
in duplicate by their duly authorized representatives to be effective as of the
date first written above.

ORGANON INTERNATIONAL AG.           CIMA Labs Inc.

By   : /s/ T. Boerma                By   : John M. Siebert
Name : Mr. T. Boerm                 Name : John M. Siebert, Ph.D.
Title: General Manager              Title: President and CEO

By   : /s/ R. Hugli                 By   : ___________________
Name : Mr. R. Hugli                 Name : ___________________
Title: General Manager              Title: ___________________

N.V. ORGANON

By   : /s/ J. Lakeman
Name : Dr. J. Lakeman
Title: Managing Director International
       Production and Quality Affairs

By   : /s/ T.J. Kalff
Name : Drs. T.J. Kalff
Title: President