Mylan Laboratories and Watson Pharmaceuticals Announce FDA Acceptance of Resubmission of New Drug Application for EMSAM Antidepressant PatchPITTSBURGH & CORONA, Calif.--(BUSINESS WIRE)--Aug. 21, 2003--

Supplemental Clinical Data Supporting Safety and Efficacy Provided to FDA

    Mylan Laboratories Inc. (NYSE:MYL) and Watson Pharmaceuticals,
Inc. (NYSE:WPI) announced today that the U.S. Food and Drug
Administration (FDA) has accepted for filing Somerset Pharmaceutical,
Inc.'s EMSAM(TM) selegiline transdermal therapy for which Somerset is
seeking marketing clearance for the treatment of depression. Somerset
is a joint venture between Mylan and Watson.
    The amendment to the New Drug Application includes additional
clinical data evaluating the safety and efficacy of EMSAM(TM) at 20mg,
30mg and 40mg doses as compared to placebo. In addition, results from
a 1 year relapse study and supplemental safety studies were submitted.
The FDA has provided an action date of February 1, 2004.
    Mylan Laboratories Inc.
    Mylan Laboratories Inc. is a leading pharmaceutical company with
four subsidiaries, Mylan Pharmaceuticals Inc., Mylan Technologies
Inc., UDL Laboratories Inc. and Bertek Pharmaceuticals Inc., that
develop, manufacture and market an extensive line of generic and
proprietary products.

For more information about Mylan, visit www.mylan.com.

Watson Pharmaceuticals, Inc.

    Watson Pharmaceuticals, Inc., headquartered in Corona, CA, is a
leading specialty pharmaceutical company that develops, manufactures,
markets and distributes branded and generic pharmaceutical products.
Watson pursues a growth strategy combining internal product
development, strategic alliances and collaborations and synergistic
acquisitions of products and businesses.
    For press releases and other company information, visit Watson
Pharmaceuticals' Web site at http://www.watsonpharm.com.
    The parties caution that this press release may contain
forward-looking statements, which are made pursuant to the safe harbor
provisions of the Private Securities Litigation Reform Act of 1995.
Actual future results may differ materially from those expressed or
implied by such forward-looking statements due to such factors
including, but not limited to, changing market conditions, the
availability and cost of raw materials, the impact of competitive
products and pricing, the timely development, FDA approval, and market
acceptance of Somerset's and its competitors' products, the outcome of
litigation and other risks detailed from time-to-time in the
Securities and Exchange Commission filings of Mylan Laboratories Inc.
and Watson Pharmaceuticals, Inc. The parties undertake no obligation
to update these statements for revisions or changes after the date of
this release.

CONTACT: Mylan Laboratories Inc., Canonsburg, Pa. Kris King, 724-514-1800 or Watson Pharmaceuticals, Inc., Corona Patty Eisenhaur or Chris Eso 909-493-5611 or 909-493-4013

SOURCE: Mylan Laboratories Inc.