Exhibit 32.1

                CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350
                             AS ADOPTED PURSUANT TO
                 SECTION 906 OF THOE SARBANES-OXLEY ACT OF 2002


Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002, with respect to the Quarterly Report of the Company
on Form 10-Q for the quarter ended March 31, 2004, (the "Report"), each of the
undersigned officers of Impax Laboratories, Inc. does hereby certify that:

     1.   The Report fully complies with the requirements of the Section 13(a)
          or 15(d) of the Securities Exchange Act of 1934; and

     2.   The information contained in the Report fairly presents, in all
          material respects, the financial condition and results of operations
          of the Company.






/s/ Barry R. Edwards          Chief Executive Officer         Date:  May 5, 2004
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Barry R. Edwards



/s/ Cornel C. Spiegler        Chief Financial Officer         Date:  May 5, 2004
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Cornel C. Spiegler


The foregoing certification is being furnished solely pursuant to Section 906 of
the Sarbanes-Oxley Act of 2002 (Section 1350 of Chapter 63 of Title 18 of the
U.S. Code) and is not being filed as part of the Report or as a separate
disclosure document.