Regeneron Announces Presentation at the Lehman Brothers Eighth Annual

    Business Editors/Health/Medical Writers
    BIOWIRE2K
    Lehman Brothers Eighth Annual Healthcare Conference

    TARRYTOWN, N.Y.--(BUSINESS WIRE)--March 28, 2005--Regeneron Pharmaceuticals, Inc. (Nasdaq: REGN) will webcast its presentation at Lehman Brothers Eighth Annual Healthcare Conference on Wednesday, March 30, 2005.
    Leonard S. Schleifer, M.D., Ph.D., President and Chief Executive Officer of Regeneron, will provide an overview of the company and its clinical candidates. The presentation is scheduled to be broadcast live on Wednesday, March 30, 2005 at 3:45 p.m. Eastern Time. The session may be accessed through the Company's website (www.regn.com on the Events page, under the Investor Relations heading) at the time of the presentation. An archived version of the presentation will be available after the live webcast through April 29, 2005.

    Regeneron is a biopharmaceutical company that discovers, develops, and intends to commercialize therapeutic medicines for the treatment of serious medical conditions. Regeneron has therapeutic candidates for the potential treatment of cancer, eye diseases, rheumatoid arthritis and other inflammatory diseases, asthma and allergies and has preclinical programs in other diseases and disorders.

    Additional information about Regeneron and recent news releases are available on Regeneron's Worldwide Web Home Page at www.regeneron.com

--30--MW/ny*

CONTACT: (Investors) Regeneron Pharmaceuticals, Inc. Charles Poole, 914/345-7640 charles.poole@regeneron.com or (Media) Lauren Tortorete, 212/845-5609 ltortorete@biosector2.com

KEYWORD: NEW YORK TRACK INDUSTRY KEYWORD: PHARMACEUTICAL BIOTECHNOLOGY TRADESHOW SOURCE: Regeneron Pharmaceuticals, Inc.

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