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                                                                   EXHIBIT 10.21

                                 ALLERGAN, INC.

                           STOCK PRICE INCENTIVE PLAN



                                    ARTICLE I

                               PURPOSE OF THE PLAN

        The purpose of this Stock Price Incentive Plan (the "PLAN") is to
provide a means of paying incentive compensation to certain key management
employees who contribute materially to the success of Allergan, Inc. (the
"COMPANY"). By relating incentive rewards of certain key management employees to
increases in market price of the Company's common stock, the Company will be in
a position to provide additional motivation and to reward extraordinary
performance by making those employees most responsible for such performance
participants in the Company's success and to align their interests with the
interests of the Company's stockholders.

                                   ARTICLE II

                         EFFECTIVE DATE AND TERM OF PLAN

        2.1 EFFECTIVE DATE OF PLAN. This Plan is adopted by the Committee
effective as of January 1, 1998, subject to stockholder approval. In the event
any Goal is achieved prior to the date of stockholder approval, the Committee
shall pay the amounts due to Participants under this Plan after such stockholder
approval is obtained along with interest at the prime rate from the latest time
such amounts otherwise would have been due to the Participants under this Plan.

        2.2 AMENDMENT AND TERMINATION OF PLAN. The Board may terminate this Plan
or modify or amend this Plan from time to time in such respects as it shall deem
advisable. Unless this Plan shall theretofore have been terminated as herein
provided, the Plan shall automatically terminate on December 31, 2000 and the
Committee shall not have authority to award Incentive Compensation after
December 31, 2000. No termination or amendment of this Plan under this Section
2.2 shall reduce the amount of the benefit which a Participant has already
become entitled to under Article 5, unless such Participant consents to such
reduction.

                                   ARTICLE III

                           ADMINISTRATION OF THE PLAN

        3.1. ADMINISTRATION. This Plan shall be administered by the Company's
Organization and Compensation Committee of the Board of Directors (the
"COMMITTEE"). The Committee shall be comprised solely of two or more outside
directors as defined in Section 162(m) of the Internal Revenue Code of 1986, as
amended (the "CODE") and the regulations promulgated thereunder. No member of
the Committee may, while serving on the Committee, also be a Participant in this
Plan. The Committee shall administer this Plan in accordance with its terms.


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        3.2 AUTHORITY OF THE COMMITTEE. Subject to the express provisions of
this Plan, the Committee has the authority to interpret this Plan, to determine
the terms and conditions of Incentive Compensation, to make all determinations
necessary or advisable for the administration of this Plan, to prescribe, amend
and rescind rules and regulations for the administration hereof as it may deem
desirable, and otherwise to carry out the terms of this Plan. All
interpretations, determinations and actions by the Committee shall be final,
conclusive and binding. Any action taken by, or inaction of, the Committee
relating to this Plan shall be within the absolute discretion of the Committee
and shall be conclusive and binding upon all persons, subject only to compliance
with the express provisions hereof.

        3.3 ORGANIZATION AND OPERATION OF COMMITTEE. The Committee shall act by
a majority vote of its members or by unanimous written consent of its members.
The Committee may authorize any one or more of its members or any specifically
designated officer of the Company to execute any document or documents on behalf
of the Committee. The Committee may appoint such accountants, counsel,
specialists, and other persons as it deems necessary or desirable in connection
with the administration of this Plan.

        3.4 RELIANCE ON REPORTS. Each member of the Committee and each member of
the Board shall be fully justified in relying or acting in good faith upon any
opinion or report made by the independent public accountants of this Company and
upon any other opinions, reports or information furnished in connection with
this Plan by any accountant, counsel, or other specialist (including financial
officers of the Company). In no event shall any person who is or shall have been
a member of the Committee or of the Board be liable for any determination made
or other action taken or any omission to act in reliance upon any such opinion,
report or information or for any action, or failure to act, if in good faith.

        3.5 RECORDS AND REPORTS. The Committee shall keep a record of all its
proceedings and acts, and shall keep all such books of account, records and
other data as may be necessary for proper administration of this Plan.

        3.6 INVALID PROVISIONS. In the event that any provision of this Plan is
found to be invalid or otherwise unenforceable under any applicable law, such
invalidity or unenforceability shall not be construed as rendering any other
provisions contained herein invalid or unenforceable, and all such other
provisions shall be given full force and effect to the same extent as though the
invalid and unenforceable provision were not contained herein.

        3.7 GOVERNING LAW. This Plan shall be governed by and interpreted in
accordance with the internal laws of the State of California, without giving
effect to the principles of the conflicts of laws thereof.

                                   ARTICLE IV

                    ELIGIBILITY AND PARTICIPATION IN THE PLAN

        4.1 ELIGIBILITY. To be eligible as a Participant under this Plan, an
employee must be an officer of the Company at the corporate vice president
(Grade 13) or higher level.

        4.2 NEW PARTICIPANTS. Participants shall be selected by the Committee
from among those persons who become eligible under Section 4.1. New Participants



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added during the period from January 1, 1998 through December 31, 1998 shall
participate in this Plan without proration. New Participants added during the
period from January 1, 1999 through December 31, 1999 shall participate in this
Plan on the basis of a 50% proration. No new Participants may be added during
the third calendar year of this Plan.

        4.3 DURATION OF PARTICIPATION. A person shall become a Participant upon
selection as a Participant pursuant to the preceding provisions of this Article
4. A person shall cease to be a Participant upon the earlier of such person's
(i) death, (ii) retirement, or (iii) termination of eligibility as a Participant
(including termination of employment). The Participant must be an employee of
the Company on the date of the relevant Goal achievement in order to receive any
Incentive Compensation with respect to that Goal achievement.

        4.4 NO EMPLOYMENT RIGHTS. Neither this Plan nor any action taken
hereunder shall confer or be deemed to confer upon any employee any right to be
retained in the employ of the Company, or constitute any contract or agreement
for employment or interfere in any way with the right of the Company to reduce
any Participant's compensation or other benefits or to terminate the employment
of such Participant, with or without cause.

        4.5 NONTRANSFERABILITY. A person's rights and interests under this Plan,
including amounts payable, may not be assigned, pledged, transferred or
otherwise hypothecated except, in the event of an employee's death, to his
designated beneficiary as provided in this Plan, or in the absence of such
designation, to his heirs, devisees or legatees by will or the laws of descent
and distribution.

        4.6 TAX WITHHOLDING. The Company shall have the right to deduct any
Federal, state, local or foreign taxes or other charges required by law to be
withheld from payments made to participants under this Plan.

        4.7 UNSECURED OBLIGATIONS. Participants under this Plan shall not have
any interest in any fund or specific assets of the Company by reason of this
Plan. No trust fund shall be created in connection with this Plan, and there
shall be no funding of amounts which may become or are payable to any
Participant.

                                    ARTICLE V

                     DETERMINATION OF INCENTIVE COMPENSATION

        5.1 FIRST GOAL. In the event that the First Goal is achieved for twenty
(20) consecutive trading days at any time during the Performance Period, each
Participant shall be entitled to an Incentive Compensation payment equal to 100%
of such Participant's Base Salary as of such twentieth day; provided, however,
that if (i) the First Goal is achieved for ten (10) or more consecutive trading
days but less than the required twenty (20) consecutive trading days and (ii)
the Committee makes a good faith determination that the failure to sustain the
First Goal for the required twenty (20) consecutive trading day period was
predominately due to factors external to the Company's performance, then each
Participant shall be entitled to an Incentive Compensation payment equal to 100%
of such Participant's Base Salary as of such twentieth day. Notwithstanding
anything herein to the contrary, there may not be more than one (1) First Goal
attained during the Performance Period.



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        5.2 SECOND GOAL. In the event that the Second Goal is achieved for
twenty (20) consecutive trading days at any time during the Performance Period,
each Participant shall be entitled to an Incentive Compensation payment equal to
200% of such Participant's Base Salary as of such twentieth day; provided,
however, that if (i) the Second Goal is achieved for ten (10) or more
consecutive trading days but less than the required twenty (20) consecutive
trading days and (ii) the Committee makes a good faith determination that the
failure to sustain the Second Goal for the required twenty (20) consecutive
trading day period was predominately due to factors external to the Company's
performance, then each Participant shall be entitled to an Incentive
Compensation payment equal to 200% of such Participant's Base Salary as of such
twentieth day. Notwithstanding anything herein to the contrary, there may not be
more than one (1) Second Goal attained during the Performance Period.

                                   ARTICLE VI

                        PAYMENT OF INCENTIVE COMPENSATION

        6.1 FORM OF PAYMENT. The Committee shall have the discretion to
determine whether the Incentive Compensation shall be paid in cash as a lump
sum, in common stock of the Company or in any combination thereof. If the
Committee elects to pay Incentive Compensation in the common stock of the
Company, in whole or in part, such common stock shall be valued at the average
of the high and low prices of the Company's common stock on the New York Stock
Exchange as reported in the Wall Street Journal for the day on which the
Committee makes such election. All Incentive Compensation shall be paid within
thirty (30) days of the Committee's determination that Incentive Compensation
shall be paid in accordance with Article 5 hereof, unless deferred by the
Participant in accordance with any applicable program for deferring incentive
compensation under which such Participant has made a valid election to defer all
or part of such award.

        6.2 SOURCE OF SHARES. Any common stock to be issued under this Plan in
accordance with Section 6.1 will be made available, at the discretion of the
Board, either from authorized but unissued shares or from shares held in
treasury.

        6.3    DEATH OR TERMINATION OF EMPLOYMENT PRIOR TO FULL PAYMENT.

               (a) In the event that a Participant has amounts payable as
Incentive Compensation under this Plan in accordance with Article 5 or Article 7
and dies prior to the payment of such amounts, the amounts payable at the time
of the Participant's death shall be paid to the Participant's beneficiary or, if
no beneficiary was designated by the Participant, to the Participant's estate.

               (b) In the event that a Participant has amounts payable as
Incentive Compensation under this Plan in accordance with Article 5 or Article 7
and retires or is no longer eligible to be a Participant prior to the payment of
such amounts, the amounts payable at the time the Participant retires or at the
time the Participant's eligibility changes shall be paid to the Participant.

                                   ARTICLE VII

                                 REORGANIZATIONS

        As of the effective time and date of any Change in Control this Plan and
the Participant's rights hereunder shall automatically terminate, the Committee
shall not 



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have authority to award Incentive Compensation and no Incentive Compensation
shall be paid. Notwithstanding the foregoing, if (i) the Committee previously
determined that Incentive Compensation shall be paid in accordance with Article
5 hereof and such Incentive Compensation has not yet been paid in accordance
with Article 6 hereof or (ii) the value of the per share Change in Control
consideration to be received by the Company's stockholders in such Change in
Control transaction, as determined in good faith by the Committee, equals or
exceeds the First Goal or the Second Goal, then the applicable Incentive
Compensation shall be paid prior to or at the effective time of the Change in
Control.

                                  ARTICLE VIII

                                   DEFINITIONS

        Capitalized terms used in this Plan and not otherwise defined shall have
the meanings set forth below:

        "BASE SALARY" shall mean the Participant's base annual compensation
excluding any overtime or other elements of compensation. Without limiting the
generality of the foregoing, Base Salary shall not include commissions, bonuses,
incentive compensation, automobile or other expense allowances or any other
compensation generally regarded as perquisites.

        "BOARD" shall mean the Board of Directors of the Company.

        "CHANGE IN CONTROL" means the following and shall be deemed to occur if
any of the following events occur:

        (i) Any "person," as such term is used in Sections 13(d) and 14(d) of
the Exchange Act, is or becomes the "beneficial owner" (as defined in Rule 13d-3
under the Exchange Act), directly or indirectly, of securities of the Company
representing 50% or more of the combined voting power of the Company's then
outstanding voting securities;

        (ii) Individuals who, as of the effective date hereof, constitute the
Board (the "INCUMBENT BOARD"), cease for any reason to constitute at least a
majority of the Board, provided that any person becoming a director subsequent
to the date hereof whose election, or nomination for election by the Company's
stockholders, is approved by a vote of at least a majority of the directors then
comprising the Incumbent Board (other than an election or nomination of an
individual whose initial assumption of office is in connection with an actual or
threatened election contest relating to the election of the directors of the
Company, as such terms are used Rule 14a-11 of Regulation 14A promulgated under
the Exchange Act) shall, for the purposes of this Plan, be considered as though
such person were a member of the Incumbent Board;

        (iii) The stockholders of the Company approve a merger or consolidation
with any other corporation, other than

        (A) a merger or consolidation which would result in the voting
securities of the Company outstanding immediately prior thereto continuing to
represent (either by remaining outstanding or by being converted into voting
securities of another entity) more than 50% of the combined voting power of the
voting securities of the Company or such other entity outstanding immediately
after such merger or consolidation, and



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        (B) a merger or consolidation effected to implement a recapitalization
of the Company (or similar transaction) in which no person acquires 50% or more
of the combined voting power of the Company's then outstanding voting
securities; or

        (iv) The stockholders of the Company approve a plan of complete
liquidation of the Company or an agreement for the sale or other disposition by
the Company of all or substantially all of the Company's assets.

        Notwithstanding the preceding provisions of this definition, a Change in
Control shall not be deemed to have occurred (1) if the "person" described in
the preceding provisions of this definition is an underwriter or underwriting
syndicate that has acquired the ownership of 50% or more of the combined voting
power of the Company's then outstanding voting securities solely in connection
with a public offering of the Company's securities or (2) if the "person"
described in the preceding provisions of this definition is an employee stock
ownership plan or other employee benefit plan maintained by the Company that is
qualified under the provisions of the Employee Retirement Income Security Act of
1974, as amended.

        "EXCHANGE ACT" means the Securities Exchange Act of 1934, as amended.

        "FIRST GOAL" shall mean a Stock Price of $50.00 per share.

        "GOAL" shall mean the First Goal and the Second Goal, collectively.

        "INCENTIVE COMPENSATION" shall mean the dollar amount awarded to a
Participant.

        "PARTICIPANT" means each officer of the Company (corporate vice
president or above) who is selected as a participant and who continues to be a
participant under the provisions of this Plan.

        "PERFORMANCE PERIOD" shall mean the three (3) years beginning January 1,
1998 and ending December 31, 2000.

        "SECOND GOAL" shall mean a Stock Price of $60.00 per share.

        "STOCK PRICE" shall mean the closing price of the Company's common stock
on the New York Stock Exchange as reported in the Wall Street Journal. The Stock
Price described in the definition of the First Goal and the Second Goal shall be
adjusted appropriately (as determined by the Committee in good faith) for any
stock splits, reverse stock splits or stock dividends.



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