IMPAX Announces FDA Approval of Generic Corzide

April 3, 2007

Product to Be Launched by Global Pharmaceuticals Division

HAYWARD, Calif., Apr 03, 2007 (BUSINESS WIRE) -- IMPAX Laboratories, Inc. (OTC:IPXL) ("IMPAX" or "the Company") announced today that the U.S. Food and Drug Administration (FDA) has granted final approval of the Company's Abbreviated New Drug Applications (ANDA) for Nadolol/Bendroflumethiazide 40mg/5mg and 80mg/5mg, generic of Corzide(R). The Company will begin marketing the products through its Global Pharmaceuticals division in the near future.

Corzide, marketed by Monarch Pharmaceuticals, a wholly-owned subsidiary of King Pharmaceuticals, Inc., for the treatment of hypertension, had sales of approximately $5.5 million in the 12 months ended February 28, 2007, according to Wolters Kluwer Health.

"This is our first approval in 2007 and we are very pleased to add generic Corzide to the growing portfolio of products our Global Pharmaceuticals division offers to patients," said Larry Hsu, Ph.D., President and Chief Executive Officer of IMPAX Laboratories.

About IMPAX Laboratories, Inc.

IMPAX Laboratories, Inc. is a technology-based specialty pharmaceutical company applying its formulation expertise and drug-delivery technology to the development of controlled-release and specialty generics in addition to the development of branded products. IMPAX markets its generic products through its Global Pharmaceuticals division and markets its branded products through the IMPAX Pharmaceuticals division. Additionally, where strategically appropriate, IMPAX has developed marketing partnerships to fully leverage its technology platform. IMPAX Laboratories is headquartered in Hayward, California, and has a full range of capabilities in its Hayward and Philadelphia facilities. For more information, please visit the Company's Web site at www.impaxlabs.com.

"Safe Harbor" statement under the Private Securities Litigation Reform Act of 1995:

To the extent any statements made in this press release contain information that is not historical, these statements are forward-looking in nature and express the beliefs and expectations of management. Such statements are based on management's current expectations and are subject to a number of known and unknown risks and uncertainties that could cause IMPAX's future results, performance or achievements to differ significantly from the results, performance or achievements expressed or implied by such forward-looking statements. Such risks and uncertainties include, but are not limited to, possible adverse effects resulting from the delisting of and suspension of trading in IMPAX's stock, the SEC proceeding to determine whether to suspend or revoke the registration of IMPAX's securities under section 12 of the Securities Exchange Act, IMPAX's delay in filing its periodic reports subsequent to its Form 10-Q for the third quarter of 2004, the time that will be required to complete the filing of IMPAX's delinquent periodic reports, IMPAX's ability to obtain sufficient capital to fund its operations, the difficulty of predicting FDA filings and approvals, consumer acceptance and demand for new pharmaceutical products, the impact of competitive products and pricing, IMPAX's ability to successfully develop and commercialize pharmaceutical products, IMPAX's reliance on key strategic alliances, the uncertainty of patent litigation, the availability of raw materials, the regulatory environment, dependence on patent and other protection for innovative products, exposure to product liability claims, fluctuations in operating results and other risks detailed from time to time in IMPAX's filings with the Securities and Exchange Commission. Forward-looking statements speak only as to the date on which they are made, and IMPAX undertakes no obligation to update publicly or revise any forward-looking statement, regardless of whether new information becomes available, future developments occur or otherwise.

SOURCE: IMPAX Laboratories, Inc.

Company Contacts:
IMPAX Laboratories, Inc.
Larry Hsu, Ph.D., President & CEO
510-476-2000, ext. 1111
or
Arthur A. Koch, Jr., CFO, 215-933-0351
www.impaxlabs.com
or
Investor Relations Contacts:
Lippert/Heilshorn & Associates, Inc.
Kim Sutton Golodetz, 212-838-3777
kgolodetz@lhai.com
or
Bruce Voss, 310-691-7100
bvoss@lhai.com
www.lhai.com