1

                                                FILED PURSUANT TO RULE 424(b)(3)
                                            REGISTRATION STATEMENT NO. 333-50524

                          PROSPECTUS SUPPLEMENT NO. 17
                                       TO
                        PROSPECTUS DATED DECEMBER 8, 2000

                                 ALLERGAN, INC.
                     LIQUID YIELD OPTION(TM) NOTES DUE 2020
                          (ZERO COUPON -- SUBORDINATED)

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

     The following information supplements, and must be read in connection with,
the information contained in the Prospectus, dated December 8, 2000 (the
"Prospectus"), of Allergan, Inc., a Delaware corporation. This Prospectus
Supplement must be delivered with a copy of the Prospectus. All capitalized
terms not otherwise defined herein have the respective meanings ascribed to them
in the Prospectus.

     The following information replaces in its entirety the information provided
in the Prospectus under the caption "Selling Securityholders."

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

                             SELLING SECURITYHOLDERS

     The LYONs were originally issued by us and sold by Merrill Lynch, Pierce,
Fenner & Smith Incorporated (the "Initial Purchaser") in a transaction exempt
from the registration requirements of the Securities Act to persons reasonably
believed by such Initial Purchaser to be "qualified institutional buyers" (as
defined by Rule 144A under the Securities Act). The Selling Securityholders
(which term includes their transferees, pledges, donees or successors) may from
time to time offer and sell pursuant to this prospectus any and all of the LYONs
and common stock.

     Set forth below are the names of each Selling Securityholder, the principal
amount of LYONs that may be offered by such Selling Securityholder pursuant to
this prospectus and the number of shares of common stock into which such LYONs
are convertible. Unless set forth below, none of the Selling Securityholders has
had a material relationship with us or any of our predecessors or affiliates
within the past three years.

     The following table sets forth certain information received by us on or
prior to August 23, 2001. However, any or all of the LYONs or common stock
listed below may be offered for sale pursuant to this prospectus by the Selling
Securityholders from time to time. Accordingly, no estimate can be given as to
the amounts of LYONs or common stock that will be held by the Selling
Securityholders upon consummation of any such sales. In addition, the Selling
Securityholders identified below may have sold, transferred, or otherwise
disposed of all or a portion of their LYONs since the date on which the
information regarding their LYONs was provided, in transactions exempt from the
registration requirements of the Securities Act.

   2



                                                           AGGREGATE
                                                        PRINCIPAL AMOUNT
                                                           OF LYONS AT       PERCENTAGE      COMMON STOCK    COMMON STOCK
                                                        MATURITY THAT MAY     OF LYONS        OWNED PRIOR     REGISTERED
NAME                                                         BE SOLD         OUTSTANDING     TO CONVERSION     HEREBY(1)
----                                                    -----------------    -----------     -------------   ------------
                                                                                                 

1976 Distribution Trust F/B/O A.R.
  Lauder/Zinterkhoffer...........................          $    32,000              *               --             184
1976 Distribution Trust F/B/O Jene A. Lauder.....               32,000              *               --             184
AIB Securities Services..........................           22,800,000           3.47               --         131,362
AIG Soundshore Opportunity Holding Fund Ltd......            4,250,000              *               --          24,486
AIG Soundshore Strategic Holding Fund Ltd........            4,250,000              *               --          24,486
AIG/National Union Fire Insurance................            2,035,000              *               --          11,725
Allstate Life Insurance Company..................            5,500,000              *           31,000(2)       31,688
Aloha Airlines Non-Pilots Pension Trust..........              375,000              *               --           2,161
Aloha Pilots Retirement Trust....................              210,000              *               --           1,210
American Fidelity Assurance Company..............              200,000              *               --           1,152
American Motorist Insurance Company..............            1,309,000              *               --           7,542
Amerisure Companies/Michigan Mutual Insurance Co.              550,000              *               --           3,169
AmSouth Bank, Custodian for AmSouth
  Variable Equity Income Fund....................            2,180,000              *               --          12,560
AmSouth Bank, Custodian for AmSouth
  Equity Income Fund.............................            4,900,000              *               --          28,231
Arapahoe County Colorado.........................              111,000              *               --             640
Arkansas Teachers Retirement.....................            9,113,000           1.39               --          52,505
Arpeggo Fund, LP.................................            4,200,000              *               --          24,198
Associated Electric & Gas Insurance Services
  Limited........................................            1,000,000              *               --           5,762
Attorney's Title Insurance Fund, Inc.............              500,000              *               --           2,881
Aventis Pension Master Trust.....................              385,000              *               --           2,218
Banc of America Securities LLC...................              500,000              *               --           2,881
Bancroft Convertible Fund, Inc...................              815,000              *               --           4,696
Bank Austria Cayman Island, Ltd..................            2,500,000              *               --          14,404
Baptist Health of South Florida..................              482,000              *               --           2,777
Bay County PERS..................................              455,000              *               --           2,621
Blue Cross Blue Shield of Florida................            2,000,000              *               --          11,523
Boilermaker - Blacksmith Pension Trust...........            2,275,000              *               --          13,107
Boston Museum of Fine Art........................              245,000              *               --           1,412
British Virgin Islands Social Security Board.....               84,000              *               --             484
BS Debt Income Fund - Class A....................               25,000              *               --             144
C & H Sugar Company, Inc.........................              575,000              *               --           3,313
CA State Automobile Assn Inter-Insurance.........            1,100,000              *               --           6,338
CALAMOS(R) Convertible Fund - CALAMOS(R)
  Investment Trust...............................            3,690,000              *               --          21,260
CALAMOS(R) Convertible Growth and Income
  Fund - CALAMOS(R) Investment Trust.............            2,370,000              *               --          13,655
CALAMOS(R) Convertible Portfolio - CALAMOS(R)
  Advisors Trust.................................              150,000              *               --             864



                                       2
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                                                           AGGREGATE
                                                        PRINCIPAL AMOUNT
                                                           OF LYONS AT       PERCENTAGE      COMMON STOCK    COMMON STOCK
                                                        MATURITY THAT MAY     OF LYONS        OWNED PRIOR     REGISTERED
NAME                                                         BE SOLD         OUTSTANDING     TO CONVERSION     HEREBY(1)
----                                                    -----------------    -----------     -------------   ------------
                                                                                                 

CALAMOS(R) Global Convertible Fund - CALAMOS(R)
  Investment Trust...............................          $   500,000              *               --           2,881
California State Automobile Inter Insurance......              390,000              *               --           2,247
California State Automobile Retirement Pension...               90,000              *               --             519
Capital Care, Inc................................               60,000              *               --             346
CareFirst of Maryland, Inc.......................              275,000              *               --           1,584
Charitable Convertible Securities Fund...........              380,000              *               --           2,189
Charitable Income Fund...........................              150,000              *               --             864
Chrysler Corporation Master Retirement Trust.....            2,960,000              *               --          17,054
CIBC World Markets International Arbitrage Corp..            8,000,000           1.22               --          46,092
City of Albany Pension Plan......................              215,000              *               --           1,239
City of Birmingham Retirement & Relief System....            1,800,000              *               --          10,371
City of Knoxville Pension System.................              520,000              *               --           2,996
City University of New York......................              271,000              *               --           1,561
Clinton Riverside Convertible Portfolio Limited..            3,000,000              *               --          17,285
Conseco Annuity Assurance - Multi-bucket
  Annuity Convertible Bond Fund..................            9,000,000           1.37               --          51,854
Conseco Fund Group - Convertible Securities Fund.            2,000,000              *               --          11,523
Continental Assurance Company....................            1,400,000              *               --           8,066
Continental Casualty Company.....................            7,600,000           1.16               --          43,787
Credit Suisse First Boston Corporation...........           13,653,000           2.08               --          78,662
Daimler Chrysler Corporation Emp. #1
  Pension Plan DTD 4/1/89........................            5,665,000              *               --          32,639
DeAm Convertible Arbitrage Fund..................            3,500,000              *               --          20,165
Delta Air Lines Master Trust (c/o Oaktree
  Capital Management, LLC).......................            1,065,000              *               --           6,136
Delta Airlines Master Trust......................            4,280,000              *               --          24,659
Deutsche Bank Alex Brown Inc.....................               39,000              *               --             225
Dorinco Reinsurance Company......................            1,500,000              *               --           8,642
EB Convertible Securities Fund...................              800,000              *               --           4,609
Elf Aquitaine....................................              400,000              *               --           2,305
Ellsworth Convertible Growth and
  Income Fund, Inc...............................              815,000              *               --           4,696
Engineers Joint Pension Fund.....................            1,006,000              *               --           5,796
Enterprise Convertible Security Fund.............              127,000              *               --             732
Fidelity Financial Trust:
  Fidelity Convertible Securities Fund (3).......           10,800,000           1.64               --          62,224
Fidelity Financial Trust:
  Fidelity Equity-Income Fund (3)................           18,103,000           2.75               --         104,300



                                       3
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                                                           AGGREGATE
                                                        PRINCIPAL AMOUNT
                                                           OF LYONS AT       PERCENTAGE      COMMON STOCK    COMMON STOCK
                                                        MATURITY THAT MAY     OF LYONS        OWNED PRIOR     REGISTERED
NAME                                                         BE SOLD         OUTSTANDING     TO CONVERSION     HEREBY(1)
----                                                    -----------------    -----------     -------------   ------------
                                                                                                 

Fidelity Management Trust Company on behalf
  of accounts managed by it (4)..................          $ 1,097,000              *               --           6,320
Field Foundation of Illinois.....................               40,000              *               --             230
Finance Factors Limited..........................              450,000              *               --           2,593
First Republic Bank..............................              175,000              *               --           1,008
Franklin and Marshall College....................              375,000              *               --           2,161
Free State Health Plan, Inc......................               80,000              *               --             461
GE Pension Trust.................................            2,800,000              *               --          16,132
Global Bermuda Limited Partnership...............              750,000              *               --           4,321
Genesee County Employees' Retirement System......              475,000              *               --           2,737
Goldman Sachs and Company........................           20,000,000           3.04               --         115,230
Grady Hospital Foundation........................              243,000              *               --           1,400
Greek Catholic Union.............................               35,000              *               --             202
Greek Catholic Union II..........................               30,000              *               --             173
Group Hospitalization and Medical Services, Inc..              300,000              *               --           1,728
Gryphon Domestic III, LLC........................           12,200,000           1.86               --          70,290
H.K. Porter Company, Inc.........................               60,000              *               --             346
Hamilton Partners Limited........................            1,000,000              *               --           5,762
Hawaiian Airlines Employees Pension Plan - IAM...              170,000              *               --             979
Hawaiian Airlines Pension Plan for
  Salaried Employees.............................               35,000              *               --             202
Hawaiian Airlines Pilots Retirement Plan.........              330,000              *               --           1,901
HealthNow New York, Inc..........................              175,000              *               --           1,008
Independence Blue Cross .........................              235,000              *               --           1,354
ING Barings LLC..................................               50,000              *               --             288
Investcorp-SAM Fund Limited......................           13,000,000           1.98               --          74,900
Island Insurance Convertible Account.............              310,000              *               --           1,786
Islands Holdings.................................              125,000              *               --             720
Jackson County Employees' Retirement System......              375,000              *               --           2,161
Jefferies & Co...................................            4,000,000              *               --          23,046
KBC Financial Products USA, Inc..................            1,000,000              *               --           5,762
Kerr McGee Corporation...........................            1,750,000              *               --          10,083
Kettering Medical Center Funded
  Depreciation Account...........................              145,000              *               --             835
Key Trust Convertible Securities Fund............              160,000              *               --             922
Key Trust Fixed Income Fund......................              210,000              *               --           1,210
Knoxville Utilities Board Retirement System......              335,000              *               --           1,930
Lakeshore International Ltd......................            1,750,000              *               --          10,083
Lancer Securities Cayman.........................            1,400,000              *               --           8,066
Lehman Brothers Inc..............................           54,820,000           8.34               --         315,845
Local Universities Support Corporation...........              108,000              *               --             622
Louisiana Workers' Compensation Corporation......              325,000              *               --           1,872
Lumberman's Mutual Casualty......................            1,039,000              *               --           5,986



                                       4
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                                                           AGGREGATE
                                                        PRINCIPAL AMOUNT
                                                           OF LYONS AT       PERCENTAGE      COMMON STOCK    COMMON STOCK
                                                        MATURITY THAT MAY     OF LYONS        OWNED PRIOR     REGISTERED
NAME                                                         BE SOLD         OUTSTANDING     TO CONVERSION     HEREBY(1)
----                                                    -----------------    -----------     -------------   ------------
                                                                                                 

Lutheran Brotherhood.............................          $ 3,000,000              *               --          17,285
Lydian Overseas Partners Master Fund.............           24,000,000           3.65               --         138,276
Macomb County Employees' Retirement System.......              325,000              *               --           1,872
McMahan Securities Co. L.P.......................              975,000              *               --           5,617
Merrill Lynch Insurance Group....................              569,000              *               --           3,278
Merrill Lynch, Pierce, Fenner & Smith, Inc. (5)..           31,862,000           4.85               --         183,573
Merrill Lynch Quantitative Advisors Securities
  Arbitrage Ltd..................................           11,500,000           1.75               --          66,257
Morgan Stanley & Co..............................           20,000,000           3.04               --         115,230
Morgan Stanley Dean Witter Convertible
  Securities Trust...............................            3,600,000              *               --          20,741
Motion Picture Industry Health Plan - Active
  Member Fund....................................              345,000              *               --           1,988
Motion Picture Industry Health Plan - Retiree
  Member Fund....................................              175,000              *               --           1,008
Museum of Fine Arts, Boston......................               20,000              *               --             115
Nabisco Holdings.................................               67,000              *               --             386
Nalco Chemical Company...........................              750,000              *               --           4,321
Nashville Electric Service.......................              325,000              *               --           1,872
New Orleans Firefighters Pension/Relief Fund.....              252,000              *               --           1,452
New York Life Insurance and Annuity Corporation..            1,250,000              *               --           7,202
New York Life Insurance Company..................           11,250,000           1.71               --          64,817
Nicholas Applegate Convertible Fund..............            3,165,000              *               --          18,235
Nicholas Applegate Global Holdings Co. LP........               80,000              *               --             461
Nicholas Applegate Investment Grade Convertible..               13,000              *               --              75
Norcal Mutual Insurance Company..................              400,000              *               --           2,305
Occidental Petroleum.............................              433,000                              --           2,495
OCM Convertible Trust............................            1,355,000              *               --           7,807
Ohio Bureau of Workers Compensation..............              302,000              *               --           1,740
Oxford, Lord, Abbett & Co........................            2,750,000              *               --          15,844
Pacific Life Insurance Company...................            2,000,000              *               --          11,523
Pacific Specialty (Convertibles).................              850,000              *               --           4,897
Palladin Securities..............................            1,050,000              *               --           6,050
Parker/Key Convertible Securities Fund...........              180,000              *               --           1,037
Parker-Hannifin Corporation......................              190,000              *               --           1,095
Partner Reinsurance Company Ltd..................              590,000              *               --           3,399
Penn Treaty Network American Insurance Company...              460,000              *               --           2,650
PGEP III LLC.....................................            1,050,000              *               --           6,050
Physicians Life..................................              791,000              *               --           4,557
Physicians' Reciprocal Insurers Account #7.......            2,000,000              *               --          11,523
PIMCO Convertible Fund...........................            5,900,000              *               --          33,993



                                       5
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                                                           AGGREGATE
                                                        PRINCIPAL AMOUNT
                                                           OF LYONS AT       PERCENTAGE      COMMON STOCK    COMMON STOCK
                                                        MATURITY THAT MAY     OF LYONS        OWNED PRIOR     REGISTERED
NAME                                                         BE SOLD         OUTSTANDING     TO CONVERSION     HEREBY(1)
----                                                    -----------------    -----------     -------------   ------------
                                                                                                 

Port Authority of Allegheny County Retirement
  and Disability Allowance Plan for the
  Employees Represented by Local 85 of the
  Amalgamated Transit Union......................          $ 2,520,000              *               --          14,519
Potlatch-First Trust Company of St. Paul.........              300,000              *               --           1,728
PRIM Board.......................................            6,050,000              *               --          34,857
ProMutual........................................              420,000              *               --           2,420
Putnam Asset Allocation Funds--Balanced
  Portfolio......................................              845,000              *               --           4,868
Putnam Asset Allocation Funds--Conservative
  Portfolio......................................              510,000              *               --           2,938
Putnam Convertible Income--Growth Trust..........            7,396,000           1.12               --          42,612
Putnam Convertible Opportunities and Income
  Trust..........................................              280,000              *               --           1,613
Quattro Fund, LLC................................            1,500,000              *               --           8,642
Queens Health Plan...............................              125,000              *               --             720
R2 Investments, LDC..............................           12,000,000           1.83               --          69,138
Radian Guaranty, Inc.............................            2,500,000              *               --          14,404
Ramius Capital Group Holdings, Ltd...............              700,000              *               --           4,033
Raytheon Master Pension Trust....................              876,000              *               --           5,047
RCG Lattitude Master Fund........................              800,000              *               --           4,609
Ret Pension Plan of the CA State Automob.........              350,000              *               --           2,017
Rhapsody Fund LP.................................           14,600,000           2.22               --          84,118
RJR Reynolds.....................................              220,000              *               --           1,268
Rockhaven Premier Dividend Fund..................              930,000              *               --           5,358
Salomon Brothers Asset Management, Inc...........            1,650,000              *               --           9,506
Salomon Smith Barney Inc.........................            4,000,000              *               --          23,046
San Diego City Retirement........................            1,973,000              *               --          11,367
San Diego County Convertible.....................            4,250,000              *               --          24,486
Screen Actors Guild Pension Convertible..........            1,072,000              *               --           6,176
Shell Pension Trust..............................              831,000              *               --           4,788
Southern Farm Bureau Life Insurance..............            3,350,000              *               --          19,301
SPT..............................................            1,830,000              *               --          10,544
Standard Insurance Company.......................              450,000              *               --           2,593
Starvest Combined Portfolio......................            2,475,000              *               --          14,260
Starvest Managed Portfolio.......................              200,000              *               --           1,152
State Employees' Retirement Fund of the
  State of Delaware..............................            1,495,000              *               --           8,613
State of Connecticut Combined Investment Funds...            3,290,000              *               --          18,955
State of Maryland Retirement System..............            5,923,000              *               --          34,125
State of Mississippi Health Care Trust Fund......            1,600,000              *               --           9,218
State of Oregon/SAIF Corporation.................           14,750,000           2.24               --          84,982
Teacher's Insurance and Annuity Association......            7,000,000           1.06               --          40,331
The Class 1c Company.............................            4,000,000              *               --          23,046
The Cockrell Foundation..........................              125,000              *               --             720
The Dow Chemical Company Employees'
  Retirement Plan................................            4,550,000              *               --          26,215



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                                                           AGGREGATE
                                                        PRINCIPAL AMOUNT
                                                           OF LYONS AT       PERCENTAGE      COMMON STOCK    COMMON STOCK
                                                        MATURITY THAT MAY     OF LYONS        OWNED PRIOR     REGISTERED
NAME                                                         BE SOLD         OUTSTANDING     TO CONVERSION     HEREBY(1)
----                                                    -----------------    -----------     -------------   ------------
                                                                                                 

The Fondren Foundation...........................          $   145,000              *               --             835
The Grable Foundation............................              216,000              *               --           1,244
Tribeca Investments LLC..........................            12,000,00           1.83               --          69,138
UBS AG, London Branch............................           11,000,000           1.67               --          63,377
UBS O'Connor LLC f/b/o UBS Global Equity
  Arbitrage Master Limited.......................            7,500,000           1.14               --          43,211
UBS Warburg LLC..................................           61,540,000           9.36               --         354,563
Unifi, Inc. Profit Sharing Plan and Trust........              230,000              *               --           1,325
United Food and Commercial Workers Local 1262
  and Employers Pension Fund.....................            1,140,000              *               --           6,568
University of Rochester..........................              100,000              *               --             576
University of South Florida .....................              550,000              *               --           3,169
University of South Florida Foundation...........               80,000              *               --             461
Van Kampen Harbor Fund...........................           13,700,000           2.08        2,635,165(6)       78,933
Van Waters & Rogers, Inc. Retirement Plan........              650,000              *               --           3,745
Vanguard Convertible Securities Fund, Inc........            3,725,000              *               --          21,462
Victory Convertible Securities Fund..............              580,000              *               --           3,342
Victory Invest Quality Bond Fund.................               90,000              *               --             519
Wake Forest University...........................            1,867,000              *               --          10,757
Writers Guild Convertible........................              626,000              *               --           3,607
Wyoming State Treasurer..........................            2,153,000              *               --          12,405


------------
 *   Less than one percent.

(1)  Assumes conversion of all of the Holder's LYONs at a conversion rate of
     5.7615 shares of common stock per $1,000 principal amount at maturity of
     the LYONs. However, this conversion rate will be subject to adjustment as
     described under "Description of the LYONs - Conversion Rights." As a
     result, the amount of common stock issuable upon conversion of the LYONs
     may increase or decrease in the future.

(2)  The Allstate Corporation ("Allstate") directly and through its subsidiaries
     currently owns 29,600 shares of Company common stock. The Agents Pension
     Plan (the "Pension Plan") currently owns 1,400 shares of Company common
     stock. The Pension Plan is a qualified ERISA plan that is maintained for
     the benefit of certain agents of Allstate Insurance Company ("AIC"), a
     subsidiary of Allstate. The Trustee for the Pension Plan holds title to all
     Pension Plan investments. Allstate disclaims any interest in securities
     held in the pension plan trust, although the Investment Committee of the
     Pension Plan consists of AIC officers. In the course of managing their
     investment portfolios, AIC and its affiliates may acquire and hold
     investments that exceed 10% of a class of equity securities of an issuer.
     The Public Equity Group of the Investment Department of AIC, which has the
     responsibility for the securities described herein, is not aware of any
     positions, offices or other material relationships involving AIC or its
     subsidiaries which are required to be disclosed. However, no independent
     investigation has been made as to whether there are or may have been any
     such transactions as a result of insurance activities, investment
     activities or other groups or divisions or actions with respect to or by
     such investing companies.

(3)  This entity is either an investment company or a portfolio of an investment
     company registered under Section 8 of the Investment Company Act of 1940,
     as amended, or a private investment account advised by Fidelity Management
     & Research Company ("FMR Co."). FMR Co. is a Massachusetts corporation and
     an investment advisor registered under Section 203 of the Investment
     Advisers Act of 1940, as amended, and provides investment advisory services
     to each of such Fidelity entities identified above, and to other registered
     investment companies and to certain other funds which are generally offered
     to a limited group of investors. FMR Co. is a wholly-owned subsidiary of
     FMR Corp. ("FMR"), a Massachusetts corporation. The holdings indicated are
     as of December 13, 2000.


                                       7
   8

(4)  Shares indicated as owned by such entity are owned directly by various
     private investment accounts, primarily employee benefit plans for which
     Fidelity Trust Management Trust Company ("FMTC") serves as trustee or
     managing agent. FMTC is a wholly-owned subsidiary of FMR and a bank as
     defined in Section 3(a)(6) of the Securities Exchange Act of 1934, as
     amended. The holdings indicated are as of December 13, 2000.

(5)  Merrill Lynch, Pierce, Fenner & Smith, Inc. was the Initial Purchaser in a
     private placement of the LYONs by the Company on November 1, 2000. Merrill
     Lynch, Pierce, Fenner & Smith, Inc. is not aware of any position, office or
     directorship relationship with the Company or its affiliates. However, it
     may or may not have, from time to time, acted in a financial investment
     advisory capacity to the Company.

(6)  Van Kampen Asset Management, Inc. is the investment advisor to the Van
     Kampen Harbor Fund and has discretionary authority over its portfolio. Van
     Kampen Asset Management, Inc. is also the investment advisor to a number of
     other funds. Those funds hold an aggregate amount of 2,635,165 shares of
     common stock of the Company.


     The preceding table has been prepared based upon information furnished to
us by the Selling Securityholders in the table. From time to time, additional
information concerning ownership of the LYONs and common stock may rest with
certain Holders thereof not named in the preceding table, with whom we believe
we have no affiliation.

     The Selling Securityholders listed in the above table may have sold or
transferred, in transactions exempt form the registration requirements of the
Securities Act, some or all of their LYONs since the date on which the
information is presented in the above table. Information about the Selling
Securityholders may change over time. Any changed information will be set forth
in prospectus supplements.

     Because the Selling Securityholders may offer all or some of their LYONs or
the underlying common stock from time to time, we can not estimate the amount of
the LYONs or the underlying common stock that will be held by the Selling
Securityholders upon the termination of any particular offering. See "Plan of
Distribution."

            THE DATE OF THIS PROSPECTUS SUPPLEMENT IS AUGUST 24, 2001


                                       8