UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

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                                    FORM 8-K

                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934


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       Date of Report (Date of earliest event reported): September 9, 2003

                            IMPAX LABORATORIES, INC.
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             (Exact name of Registrant as specified in its charter)

            Delaware                    0-27354                65-0403311
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(State or other jurisdiction of       (Commission           (I.R.S. Employer
 incorporation or organization)       File Number)       Identification Number)

                              30381 Huntwood Avenue
                                Hayward, CA 94544
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          (Address of principal executive offices, including zip code)


       Registrant's telephone number, including area code: (510) 476-2000
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Item 9.  Regulation FD Disclosure

         On September 9, 2003, Impax Laboratories Inc. issued a press release
announcing that Alza Corporation, a unit of Johnson & Johnson, had commenced
litigation against the Company in the United States District Court, Northern
District of California related to the Company's generic version of Ditropan XL
(Oxybutynin Chloride) Tablets, 15 mg. A copy of the press release is attached as
Exhibit 99.1 and is incorporated herein by reference.









                                   SIGNATURES


         Pursuant to the requirements of the Securities Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.



                                           Impax Laboratories, Inc.

Date: September 9, 2003
                                           By: Cornel C. Spiegler
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                                               Cornel C. Spiegler
                                               Chief Financial Officer