Filed Pursuant to Rule 424(b)(3)
Registration No. 333-136188
PROSPECTUS SUPPLEMENT NO. 19
(TO PROSPECTUS DATED JULY 31, 2006)
$750,000,000
ALLERGAN, INC.
1.50% CONVERTIBLE SENIOR NOTES DUE 2026
SHARES OF COMMON STOCK ISSUABLE UPON CONVERSION OF THE NOTES
This Prospectus Supplement No. 19 supplements and amends the Prospectus dated July 31, 2006
(as amended, the “Prospectus”), relating to the resale from time to time by holders of our 1.50%
Convertible Senior Notes Due 2026 and shares of our common stock issuable upon the conversion of
the notes of such securities. Such information has been obtained from the selling securityholders.
This prospectus supplement should be read in conjunction with the Prospectus, which is to be
delivered with this prospectus supplement.
The information appearing in the table below, as of the date hereof, supplements and amends
the information in the table appearing under the heading “Selling Securityholders” in the
Prospectus, and, where the name of a Selling Securityholder identified in the table below also
appears in the table in the Prospectus, the information set forth in the table below regarding that
Selling Securityholder supersedes the information in the Prospectus:
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PRINCIPAL |
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AMOUNT OF |
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NOTES |
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COMMON |
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COMMON |
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BENEFICIALLY |
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PERCENTAGE |
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STOCK OWNED |
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STOCK |
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OWNED AND |
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OF NOTES |
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PRIOR TO THE |
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OFFERED |
| NAME OF SECURITY HOLDER |
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OFFERED HEREBY |
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OUTSTANDING |
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OFFERING(2) |
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HEREBY (1)(2) |
BNP Parabis Arbitrage
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7,000,000 |
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* |
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0 |
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110,532 |
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(1) The number of shares of common stock offered hereby includes shares of common stock into which
the notes are convertible. The number of shares of common stock offered hereby is based on a
conversion rate of 15.7904 (as adjusted for the stock split described below) shares of common stock
per $1,000 principal amount of maturity of the notes. Information concerning other Selling
Securityholders will be set forth in prospectus supplements from time to time, if required. The
number of shares of common stock owned by the other Selling Securityholders or any future
transferee from any such holder assumes that they do not beneficially own any common stock other
than common stock into which the notes are convertible at a conversion rate of 15.7904
shares of common stock per $1,000 principal amount of maturity of the notes.
(2) Reflects the 2-for-1 stock split in the form of a stock dividend on issued and outstanding
shares of common stock that was paid immediately after the close of business on June 22, 2007 to
holders of record of common stock at the close of business on June 11, 2007.
INVESTING IN THE NOTES OR THE COMMON STOCK ISSUABLE UPON CONVERSION OF THE NOTES INVOLVES A
HIGH DEGREE OF RISK. PLEASE CONSIDER THE “RISK FACTORS” BEGINNING ON PAGE 5 OF THE PROSPECTUS.
NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSION HAS
APPROVED OR DISAPPROVED OF THESE SECURITIES OR DETERMINED IF THE PROSPECTUS IS TRUTHFUL OR
COMPLETE. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
The date of this prospectus supplement is December 6, 2007.