EXHIBIT 10.2

                         CONSENT AGREEMENT AND AMENDMENT

         This Agreement (the "Agreement") dated February 25, 2004 (the
"Effective Date") is made by and among Wyeth Holdings Corporation (formerly
known as "American Cyanamid Company"), 5 Giralda Farms, Madison, New Jersey
07940 ("Wyeth"), Neurocrine Biosciences, Inc., 10555 Science Center Drive, San
Diego, California 92121 ("Neurocrine"), and DOV Pharmaceutical, Inc., 433
Hackensack Avenue, Hackensack, New Jersey 07601 ("DOV"). Wyeth, Neurocrine and
DOV may each be referred to herein individually as a "Party" and collectively as
the "Parties".

         WHEREAS, DOV and Wyeth entered into that certain License Agreement
dated May 29, 1998 (as amended from time to time, including, without limitation,
by the 2002 Consent Agreement, the "Original License Agreement") pursuant to
which DOV was granted an exclusive license from Wyeth to the compound designated
as CL 285,489 (the "Compound");

         WHEREAS, DOV and Neurocrine entered into that certain Sublicense and
Development Agreement dated June 30, 1998 (as amended from time to time,
including, without limitation, by this Agreement and by the 2002 Consent
Agreement, the "Sublicense Agreement") pursuant to which DOV sublicensed to
Neurocrine its rights under the Original License Agreement in the Patent Rights
and Know-How (each as defined in the Sublicense Agreement) to, among other
things, make and sell the Licensed Product (as defined in the Sublicense
Agreement);

         WHEREAS, DOV, Neurocrine and Wyeth entered into that certain Consent
and Agreement dated December 13, 2002 (the "2002 Consent Agreement"), pursuant
to which Wyeth and DOV, inter alia, provided their consent for Neurocrine to
further sublicense to an Approved Sublicensee (as defined therein), including
Pfizer, Inc., the rights granted to it under the Sublicense Agreement;

         WHEREAS, DOV and Wyeth desire to enter into prior to or upon the
Closing (as defined below) (i) an Amended and Restated License Agreement,
pursuant to which the Original License Agreement will be amended to delete
therefrom all rights and obligations of each of Wyeth and DOV insofar as they
relate to the Compound, and (ii) the Compound License Agreement (as defined
below), setting forth the rights and obligations of each of Wyeth and DOV solely
as they relate to the Compound; and

         WHEREAS, Neurocrine desires to obtain from Wyeth and Wyeth desires to
grant to Neurocrine an assignment of (i) all of Wyeth's rights and obligations
under each of the Compound License Agreement, (ii) Wyeth's rights and
obligations under the 2002 Consent Agreement the extent such rights and
obligations relate to the Compound or the Compound Patent, and (iii) all of
Wyeth's right, title and interest in and to the Compound Patent (as defined
below), in each case subject to the rights and licenses granted to DOV pursuant
to the Compound License Agreement and the rights and licenses granted to DOV and
Neurocrine under the 2002 Consent Agreement.

                                       1


         NOW THEREFORE, in consideration of the foregoing premises and the
promises, mutual covenants and obligations set forth below, and other good and
valuable consideration, the Parties agree as follows.

1.       DEFINITIONS.

         1.1      INCORPORATION BY REFERENCE. All capitalized terms not
                  otherwise defined herein shall have the meanings assigned to
                  such terms in the Original License Agreement or the Sublicense
                  Agreement, as applicable.

         1.2      "CLOSING" shall mean the date and time on which Wyeth assigns
                  to Neurocrine and Neurocrine assumes from Wyeth, all of
                  Wyeth's rights and obligations under the Compound License
                  Agreement.

         1.3      "COMPOUND LICENSE AGREEMENT" shall mean the license agreement
                  relating solely to the Compound, which license agreement is to
                  be entered into by and between Wyeth and DOV simultaneously
                  with their amendment and restatement of the Original License
                  Agreement as described above in the preamble of this
                  Agreement. The Compound License Agreement shall be in the form
                  attached hereto as Exhibit 1.3.

         1.4      "COMPOUND PATENT" shall mean United States Patent 6,399,621
                  granted on June 4, 2002.

2.       CONSENTS.

         2.1      CONSENT TO AMEND THE LICENSE AGREEMENT. Neurocrine hereby
                  acknowledges that Wyeth and DOV will, and Wyeth and DOV each
                  agree that they shall, on or before the Closing, (i) amend and
                  restate the Original License Agreement so as to delete
                  therefrom all rights and obligations of each of Wyeth and DOV
                  insofar as they relate to the Compound, and (ii)
                  simultaneously enter into the Compound License Agreement.
                  Neurocrine hereby provides its consent for Wyeth and DOV to so
                  amend the Original License Agreement and enter into the
                  Compound License Agreement.

         2.2      CONSENT TO ASSIGN THE COMPOUND LICENSE AGREEMENT. Subject to
                  the terms and conditions of this Agreement (including, without
                  limitation, the entry into each of the Compound License
                  Agreement and the Amended and Restated License Agreement by
                  Wyeth and DOV) and in partial consideration for the amendments
                  to be made to the Sublicense Agreement as set forth in Article
                  4 below, DOV hereby irrevocably provides its consent to each
                  of Wyeth and Neurocrine for Wyeth to assign to Neurocrine and
                  for Neurocrine to assume all of Wyeth's rights and obligations
                  under the Compound License Agreement. The rights to be so
                  assigned to Neurocrine (i) shall be subject to the rights and
                  licenses granted to DOV under the Compound License Agreement,
                  and (ii) shall

                                       2


                  not reduce the exclusivity enjoyed by DOV under the Wyeth
                  Patents and Wyeth Know-How (each as defined in the Compound
                  License Agreement) pursuant to the Compound License Agreement
                  beyond that which such exclusivity with respect to such Wyeth
                  Patents and Wyeth Know-How with respect to the Compound was
                  reduced by DOV's grant of rights to Neurocrine under the
                  Sublicense Agreement.

         2.3      CONSENT TO ASSIGN COMPOUND PATENT. Subject to the terms and
                  conditions of this Agreement (including, without limitation,
                  the entry into each of the Compound License Agreement and the
                  Amended and Restated License Agreement by Wyeth and DOV) and
                  in partial consideration for the amendments to be made to the
                  Sublicense Agreement as set forth in Article 4 below, DOV
                  hereby irrevocably provides its consent to each of Wyeth and
                  Neurocrine for Wyeth to assign to Neurocrine and for
                  Neurocrine to assume all of Wyeth's right, title and interest
                  in and to the Compound Patent. The right, title and interest
                  in and to the Compound Patent to be so assigned to Neurocrine
                  (i) shall be subject to the rights and licenses granted to DOV
                  under the Compound License Agreement, and (ii) shall not
                  reduce the exclusivity enjoyed by DOV under the Wyeth Patents
                  and Wyeth Know-How (each as defined in the Compound License
                  Agreement) pursuant to the Compound License Agreement beyond
                  that which such exclusivity with respect to such Wyeth Patents
                  and Wyeth Know-How with respect to the Compound was reduced by
                  DOV's grant of rights to Neurocrine under the Sublicense
                  Agreement.

         2.4      CONSENT TO ASSIGN 2002 CONSENT AGREEMENT. Subject to the terms
                  and conditions of this Agreement (including, without
                  limitation, the entry into each of the Compound License
                  Agreement and the Amended and Restated License Agreement by
                  Wyeth and DOV) and in partial consideration for the amendments
                  to be made to the Sublicense Agreement as set forth in Article
                  4 below, DOV hereby irrevocably provides its consent to each
                  of Wyeth and Neurocrine for Wyeth to assign to Neurocrine and
                  for Neurocrine to assume, subject to the obligations assumed
                  by Neurocrine under the Compound License Agreement, all of
                  Wyeth's rights and obligations under the 2002 Consent
                  Agreement insofar as such rights and obligations relate to the
                  Compound and/or the Compound Patent, it being understood and
                  agreed that Wyeth will at all times remain obligated under the
                  2002 Consent Agreement as and to the extent that Wyeth is the
                  owner or licensor of the ACY Know-How and the ACY Patents (as
                  such terms are defined in the Original License Agreement, but
                  not including the Compound Patent).

         2.5      CONSENT TO GRANT LICENSE TO NEUROCRINE. Subject to the terms
                  and conditions of this Agreement (including, without
                  limitation, the entry into each of the Compound License
                  Agreement and the Amended and Restated License Agreement by
                  Wyeth and DOV) and in partial consideration for the amendments
                  to be made to the Sublicense Agreement as set forth in

                                       3


                  Article 4 below, DOV hereby irrevocably provides its consent
                  to each of Wyeth and Neurocrine for Wyeth to grant to
                  Neurocrine an exclusive license, with the right to sublicense,
                  under the ACY Know-How and the ACY Patents (as such terms is
                  defined in the Original License Agreement and which terms will
                  be referred to as the "Wyeth Know" and the "Wyeth Patents",
                  respectively, in the Compound License Agreement), with the
                  exception of the Compound Patent, solely for Neurocrine to
                  make, have made, use, import, offer for sale and/or sell
                  pharmaceutical products containing the Compound in the
                  Territory (as such term is defined in the Compound License
                  Agreement). The rights to be so licensed to Neurocrine (i)
                  shall be subject and subordinate to the rights and licenses
                  granted to DOV under the Compound License Agreement, (ii)
                  shall not reduce the exclusivity enjoyed by DOV under the
                  Wyeth Patents and Wyeth Know-How pursuant to the Compound
                  License Agreement beyond that which such exclusivity with
                  respect to such Wyeth Patents and Wyeth Know-How with respect
                  to the Compound was reduced by DOV's grant of rights to
                  Neurocrine under the Sublicense Agreement, and (iii) are to be
                  granted to Neurocrine for purposes of allowing Neurocrine to
                  assume Wyeth's role as licensor of the Wyeth Patents and the
                  Wyeth Know-How and maintaining continuity in the chain of
                  title with respect to the licenses granted thereunder. For the
                  sake of clarity, for so long as the Sublicense Agreement or
                  any license granted under the 2002 Consent Agreement is in
                  effect, Neurocrine's or its Approved Sublicensee's use of the
                  Wyeth Know-How and practice of the Wyeth Patents shall be
                  accomplished through the rights and licenses granted to
                  Neurocrine under the Sublicense Agreement or the 2002 Consent
                  Agreement, respectively.

3.       THE COMPOUND LICENSE AGREEMENT.

         3.1      WAIVER OF CERTAIN RIGHTS. DOV and Neurocrine hereby agree
                  that, effective immediately after the assignment of the
                  Compound License Agreement by Wyeth to Neurocrine and for so
                  long thereafter as the Sublicense Agreement remains in effect,
                  Neurocrine hereby irrevocably waives its rights under, and DOV
                  shall have no further obligations under, Articles 3.0, 8.0 and
                  10.0 and Sections 6.5, 9.2, 14.1, 14.2 and 14.3 of the
                  Compound License Agreement. In the event that the Sublicense
                  Agreement is terminated for any reason, such waiver shall no
                  longer be in effect with respect to any activities occurring
                  after the effective date of such termination.

         3.2      RIGHT OF FIRST REFUSAL. DOV and Neurocrine hereby agree that,
                  effective immediately after the assignment of the Compound
                  License Agreement by Wyeth to Neurocrine, the Compound License
                  Agreement is hereby amended to delete therefrom Article 4.0 in
                  its entirety.

         3.3      PAYMENTS. DOV and Neurocrine hereby agree that effective
                  immediately

                                       4


                  after the assignment of the Compound License Agreement by
                  Wyeth to Neurocrine and for so long thereafter as the
                  Sublicense Agreement remains in effect or any license granted
                  by Wyeth or DOV to Neurocrine or any sublicensee of Neurocrine
                  remains in effect, the Compound License Agreement is hereby
                  amended by deleting Sections 6.2, 6.3 and 6.4 therefrom in
                  their entirety and inserting in their place, the following:

                           "6.2     DOV shall pay to Wyeth each of the following
                                    Scheduled Payments within thirty (30) days
                                    after the occurrence of the event specified
                                    below for such Scheduled Payment:



                 Event                                Scheduled Payment
                 -----                                -----------------
                                                   
First to occur of the filing of an NDA                   $1,000,000
for the Marketed Product in either the
United States, Japan or within the
European Union

Regulatory approval for the marketing                    $1,500,000
of the Marketed Product within either
the United States, Japan or within the
European Union


                           6.3      In consideration of the rights and licenses
                                    granted to DOV under Article 2.0 hereof, DOV
                                    shall pay to Wyeth during the term of this
                                    Agreement, on a country-by-country basis,
                                    royalties consisting of two and one-half
                                    percent (2-1/2 %) of Net Sales of Marketed
                                    Product."

                  In the event that the Sublicense Agreement ceases to be in
                  effect for any reason and the licenses granted by Wyeth or DOV
                  to Neurocrine or any sublicensee of Neurocrine pursuant to the
                  2002 Consent Agreement cease to be in effect, the amendment
                  set forth in this Section 3.3 shall no longer be of any force
                  or effect and the Sections 6.2, 6.3 and 6.4 of the Compound
                  License Agreement as they exist prior to the amendment thereto
                  pursuant to this Section 3.3 shall again become effective as
                  of such time.

         3.4      PATENT ENFORCEMENT. DOV and Neurocrine hereby agree that
                  effective immediately after the assignment of the Compound
                  License Agreement by Wyeth to Neurocrine and for so long
                  thereafter as the Sublicense Agreement remains in effect or
                  any license granted by Wyeth or DOV to Neurocrine or
                  Neurocrine's Approved Sublicensee under the 2002

                                       5


                  Consent Agreement remains in effect, DOV's and Neurocrine's
                  (or Neurocrine's Approved Sublicensee's) rights and
                  obligations with respect to the enforcement of any patent
                  included within the Wyeth Patents (as such term is defined in
                  the Compound License Agreement) shall be governed by the terms
                  and conditions of the Sublicense Agreement (as amended hereby)
                  and that Section 12.3 of the Compound License Agreement shall
                  have no effect. In the event that the Sublicense Agreement is
                  terminated for any reason and the licenses granted by ACY or
                  DOV to Neurocrine or Neurocrine's Approved Sublicensee
                  pursuant to the 2002 Consent Agreement cease to be in effect,
                  the rights and obligations of each of DOV and Neurocrine with
                  respect to the enforcement of any patent included within the
                  Wyeth Patents shall thereafter be governed by Section 12.3 of
                  the Compound License Agreement.

         3.5      TERM OF AGREEMENT. DOV and Neurocrine hereby agree that,
                  effective immediately after the assignment of the Compound
                  License Agreement to Neurocrine, the term of the Compound
                  License Agreement shall be, and, subject to Section 5.6 of
                  this Agreement, DOV's payment obligations to Neurocrine as
                  Wyeth's assignee thereunder shall continue in full force and
                  effect, in each country of the Territory until the later of
                  (a) the final expiration in such country of each patent,
                  including, without limitation, any patent included in the
                  Wyeth Patents and any patent owned or controlled by Neurocrine
                  (including, without limitation, U.S. Patent 6,544,999) which
                  patent would be practiced by the manufacture, use or sale of
                  the Compound or (b) ten (10) years following the first sale of
                  the Licensed Product by DOV or its sublicensee in such
                  country.

4.       AMENDMENTS TO SUBLICENSE AGREEMENT.

         4.1      PATENT ENFORCEMENT. In partial consideration for DOV's
                  agreement to provide the consents set forth in Sections 2.2
                  through 2.5 above, Neurocrine and DOV hereby agree to amend
                  Section 8.2 of the Sublicense Agreement by deleting Section
                  8.2 in its entirety and replacing it with the following:

                           "8.2     Each of DOV and Neurocrine shall promptly
                                    inform the other party of any suspected
                                    infringement by a third party of any patent
                                    included within the Patent Rights and
                                    provide such other party with any available
                                    evidence of such suspected infringement.

                                    Neurocrine, either directly or through its
                                    sublicensee, shall have the right but not
                                    the obligation to institute or initiate any
                                    claim, suit or proceeding against an
                                    infringer or a presumed infringer of any
                                    patent included within the Patent

                                       6


                                    Rights. Neurocrine, either directly or
                                    through its sublicensee, shall control the
                                    prosecution of any such suit, claim or
                                    proceeding, including, without limitation,
                                    the choice of counsel and any settlement of
                                    any such suit or claim, provided, however,
                                    Neurocrine shall not admit the invalidity of
                                    any patent included within the Patent Rights
                                    pursuant to any such settlement, without
                                    DOV's prior written consent. DOV shall
                                    provide Neurocrine with all reasonable
                                    assistance (other than financial) required
                                    to institute and maintain such proceedings.

                                    In the event that a claim, suit or other
                                    proceeding against an infringer or a
                                    presumed infringer of any patent included
                                    within the Patent Rights is not instituted
                                    or initiated by either Neurocrine or its
                                    sublicensee within six (6) months after DOV
                                    has requested Neurocrine to do so, DOV,
                                    after good faith consultation with
                                    Neurocrine regarding the reasons for
                                    electing not to initiate or institute such
                                    claim, suit or other proceeding, and subject
                                    to Neurocrine's consent, such consent not to
                                    be unreasonably withheld, shall have the
                                    right to institute a claim, suit or
                                    proceeding against such infringer or
                                    presumed infringer. In such event DOV shall
                                    control the prosecution of any such suit,
                                    claim or proceeding, including, without
                                    limitation, the choice of counsel and any
                                    settlement of any such suit or claim,
                                    provided, however, that DOV shall not admit
                                    the invalidity of any patent included within
                                    the Patent Rights pursuant to any such
                                    settlement without Neurocrine's prior
                                    written consent. Neurocrine shall provide,
                                    and shall cause its sublicensee to provide,
                                    DOV with all reasonable assistance (other
                                    than financial) required to institute and
                                    maintain such proceedings.

                                    Any proceeds from any proceeding brought by
                                    or on behalf of Neurocrine or Neurocrine's
                                    sublicensee against an infringer or presumed
                                    infringer as provided in this Section 8.2
                                    shall first be allocated to reimburse each
                                    of DOV, Neurocrine and Neurocrine's
                                    sublicensee for the costs incurred by such
                                    party in connection with such proceedings.
                                    DOV shall be entitled to receive ten percent
                                    (10%) of any amount remaining from such
                                    proceeds and Neurocrine, subject to
                                    Neurocrine's obligations under any agreement
                                    between Neurocrine and its sublicensee with
                                    respect to such proceeds, shall be entitled
                                    to retain the remaining amount of such
                                    proceeds. Any remaining proceeds from any
                                    proceeding brought by or on behalf of DOV
                                    against an infringer or presumed infringer
                                    as

                                       7


                                    provided in this Section 8.2 shall first be
                                    allocated to reimburse each of DOV and
                                    Neurocrine for the costs incurred by such
                                    party in connection with such proceedings.
                                    DOV shall be entitled to retain ninety
                                    percent (90%) of any amount remaining from
                                    such proceeds and, subject to Neurocrine's
                                    obligations under any agreement between
                                    Neurocrine and its sublicensee with respect
                                    to such proceeds, the remainder shall be
                                    distributed to Neurocrine."

         4.2      TERM. In partial consideration for DOV's agreement to provide
                  the consents set forth in Sections 2.2 through 2.5 above,
                  Neurocrine and DOV hereby agree to amend Section 15.1 of the
                  Sublicense Agreement by deleting Section 15.1 in its entirety
                  and replacing it with the following:

                           "15.1    This Agreement and Neurocrine's payment
                                    obligations hereunder shall continue in full
                                    force and effect in each country of the
                                    Territory until the later of (a) the final
                                    expiration in such country of each patent,
                                    including, without limitation, any patent
                                    included in the Patent Rights and any patent
                                    owned or controlled by Neurocrine
                                    (including, without limitation, U.S. Patent
                                    6,544,999) which patent would be practiced
                                    by the manufacture, use or sale of the
                                    Compound or (b) ten (10) years following the
                                    first sale of the Licensed Product by
                                    Neurocrine or its sublicensee in such
                                    country."

         4.3      GOVERNING LAW. Neurocrine and DOV hereby agree to amend
                  Article 13 of the Sublicense Agreement by replacing in the
                  second line thereof "Delaware" with "New York".

         4.4      PUBLIC COMMUNICATIONS. In partial consideration for DOV's
                  agreement to provide the consents set forth in Sections 2.2
                  through 2.5 above, Neurocrine and DOV hereby agree to amend
                  Section 16.9 of the Sublicense Agreement by adding the
                  following to the end thereof:

                           "In any annual filing made by Neurocrine under the
                           Securities Act of 1934 or any press release issued by
                           or on behalf of Neurocrine or Neurocrine's Affiliates
                           regarding the Compound, Neurocrine shall use its
                           reasonable best efforts to state that the Compound is
                           being developed and/or commercialized under license
                           from DOV. In any public presentation of regarding the
                           Compound made by any employee or representative of
                           Neurocrine or any of Neurocrine's Affiliates,
                           Neurocrine shall use its reasonable efforts to
                           indicate that the Compound is being developed and/or
                           commercialized under license from DOV. Neurocrine
                           shall use its

                                       8


                           reasonable efforts to request that its sublicensee
                           undertake similar obligations."

5.       OTHER MATTERS.

         5.1      ASSUMPTION OF OBLIGATIONS. Each Party agrees that, upon the
                  assignment by Wyeth to Neurocrine of Wyeth's rights and
                  obligations under the Compound License Agreement, it shall
                  sign and deliver to each of the other Parties an assignment
                  and assumption agreement in the form attached hereto as
                  Exhibit 5.1 duly executed by an authorized officer of such
                  Party.

         5.2      PRESERVATION OF PATENTS. Neurocrine agrees that, upon
                  assignment by Wyeth of the Compound Patent to Neurocrine that
                  Neurocrine shall not, without DOV's prior written consent, (i)
                  allow the Compound Patent to lapse (by reason of failure to
                  pay maintenance fees or annuities or to take any other action
                  necessary to maintain the Compound Patent in full force and
                  effect) or (ii) admit the invalidity of the Compound Patent or
                  take any other action that would result in the invalidity of
                  the Compound Patent.

         5.3      PAYMENT OF LEGAL EXPENSES. Neurocrine agrees that, within five
                  (5) business days after the effective date of this Agreement,
                  it shall pay to DOV those legal fees incurred by DOV in
                  negotiating and entering into the 2002 Consent Agreement,
                  which legal fees amount to Thirty Thousand Nine Hundred Ninety
                  Two Dollars and Seventy-Eight Cents ($30,992.78).

         5.4      NO FURTHER OBLIGATIONS. Each of DOV and Neurocrine agree that,
                  upon the assignment by Wyeth to Neurocrine of Wyeth's rights
                  and obligations under the Compound License Agreement and of
                  Wyeth's right, title and interest in and to the Compound
                  Patent, that Wyeth shall have no further obligations under the
                  Compound License Agreement or with respect to the Compound
                  Patent.

         5.5      EXERCISE OF RIGHTS. Each of DOV and Neurocrine shall exercise
                  and shall cause their respective Affiliates to exercise any
                  and all rights and elections required to preserve the rights
                  granted under the Compound License Agreement and the
                  Sublicense Agreement pursuant to Section 365(n) of the United
                  States Bankruptcy Code (11 USC Section 365(n)).

         5.6      NET PAYMENTS. DOV and Neurcrine hereby agree, that upon the
                  assignment by Wyeth to Neurocrine of Wyeth's rights and
                  obligations under the Compound License Agreement, Neurocrine
                  may subtract from each payment to be made by Neurocrine to DOV
                  under the Sublicense Agreement an amount equal to that portion
                  of such payment that DOV is required to pay to Neurocrine, as
                  Wyeth's assignee, under the Compound License Agreement (prior
                  to such subtraction), provided, however, that for any amount
                  so subtracted by Neurocrine from payments due DOV under

                                       9


                  the Sublicense Agreement, DOV shall not be required to pay
                  such amounts to Neurocrine, as Wyeth's assignee, under the
                  Compound License Agreement.

6.       MISCELLANEOUS.

         6.1      AMENDMENT. No amendment, modification or supplement of any
                  provision of this Agreement shall be valid or effective unless
                  made in writing and signed by a duly authorized officer of
                  each of the Parties.

         6.2      WAIVER. No provision of the Agreement shall be waived by any
                  act, omission or knowledge of a Party or its agents or
                  employees except by an instrument in writing expressly waiving
                  such provision and signed by a duly authorized officer of the
                  waiving Party. The waiver by either of the Parties of any
                  breach of any provision hereof by the other Party shall not be
                  construed to be a waiver of any succeeding breach of such
                  provision or a waiver of the provision itself.

         6.3      SEVERABILITY. If any clause or portion thereof in this
                  Agreement is for any reason held to be invalid, illegal or
                  unenforceable, the same shall not affect any other portion of
                  this Agreement, as it is the intent of the Parties that this
                  Agreement shall be construed in such fashion as to maintain
                  its existence, validity and enforceability to the greatest
                  extent possible. In any such event, this Agreement shall be
                  construed as if such clause or portion thereof had never been
                  contained in this Agreement, and there shall be deemed
                  substituted therefor such provision as will most nearly carry
                  out the intent of the Parties as expressed in this Agreement
                  to the fullest extent permitted by applicable law.

         6.4      REPRESENTATION BY LEGAL COUNSEL. Each Party hereto represents
                  that it has been represented by legal counsel in connection
                  with this Agreement and acknowledges that it has participated
                  in the drafting hereof and that it has not relied on any
                  statement or action made by any other Party's legal counsel in
                  the discussions regarding this Agreement. In interpreting and
                  applying the terms and provisions of this Agreement, the
                  Parties agree that no presumption shall exist or be implied
                  against the Party who drafted such terms and provisions.

         6.5      NOTICES. Any notices required hereunder shall be sent by
                  registered or certified mail or by an equivalent service
                  capable of verification at the address stated below or such
                  other address as to which the parties may provide in the
                  future.

                                       10


                  If to Wyeth:

                      Wyeth Pharmaceuticals
                      500 Arcola Road
                      Collegeville, Pennsylvania 19426
                      Attn: Senior Vice President, Global Business Development

                               With a copy to:

                               Wyeth
                               5 Giralda Farms
                               Madison, New Jersey 07940
                               Attn:  General Counsel

                  If to Neurocrine:

                           Neurocrine Biosciences, Inc.
                           10555 Science Center Drive
                           San Diego, California 92121
                           Attn: CEO
                           With copy: General Counsel

                  If to DOV:

                           DOV Pharmaceutical, Inc.
                           433 Hackensack Avenue
                           Hackensack, New Jersey 07601
                           Attn: CEO
                           With copy: General Counsel

         6.6      DESCRIPTIVE HEADINGS. The descriptive headings of this
                  Agreement are for convenience only, and shall be of no force
                  or effect in construing or interpreting any of the provisions
                  of this Agreement.

         6.7      GOVERNING LAW. This Agreement and the 2002 Consent Agreement
                  shall be governed by and interpreted in accordance with the
                  substantive laws of the State of New York, without regard to
                  conflict of law principles thereof.

         6.8      COUNTERPARTS. This Agreement may be executed in any number of
                  counterparts each of which shall be an original and all
                  originals of which shall be deemed a single instrument.

         6.9      ENTIRE AGREEMENT. This Agreement represents the full
                  understanding between the Parties with respect to the subject
                  matter hereof and cancels and supersedes any and all prior
                  negotiations, correspondence, understandings and agreements,
                  whether oral or written, among the Parties respecting the
                  subject matter hereof. Notwithstanding the foregoing,

                                       11


                  except as expressly stated herein with respect to the
                  amendments to be made to the Compound License Agreement, the
                  amendments to be made to the Sublicense Agreement, and the
                  rights and obligations of Wyeth under each of the Compound
                  License Agreement and the 2002 Consent Agreement, this
                  Agreement shall have no effect on the Compound License
                  Agreement, the Sublicense Agreement or the 2002 Consent
                  Agreement, which agreements shall continue in full force and
                  effect as so amended.

         6.10     INDEPENDENT CONTRACTORS. This Agreement shall not constitute
                  any Party as the joint venturer, legal representative or agent
                  of any other Party hereto and no Party hereto shall have the
                  right or authority to assume or create any obligation on the
                  part of any other Party hereto.

IN WITNESS WHEREOF, THE PARTIES HERETO HAVE CAUSED THIS AGREEMENT TO BE EXECUTED
BY THEIR DULY AUTHORIZED REPRESENTATIVES.

WYETH HOLDINGS CORPORATION

/s/ Robert A. Dougan
By: Robert A. Dougan
Title: Senior Vice President

NEUROCRINE BIOSCIENCES, INC.

/s/ Gary A. Lyons
By: Gary A. Lyons
Title: President and CEO

DOV PHARMACEUTICAL, INC.

/s/ Robert Horton
By: Robert Horton
Title: Vice President and General Counsel

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