News Release Detail

December 20, 2004

Mylan Declares Quarterly Cash Dividend

Mylan Declares Quarterly Cash DividendPITTSBURGH, Dec. 20 /PRNewswire-FirstCall/ -- Mylan Laboratories Inc. (NYSE: MYL) announced today that the regular quarterly cash dividend of $.03 per share will be payable on January 14, 2005, to shareholders of record at the close of business on December 31, 2004.

Mylan Laboratories Inc. is a leading pharmaceutical company with four subsidiaries, Mylan Pharmaceuticals Inc., Mylan Technologies Inc., UDL Laboratories, Inc. and Mylan Bertek Pharmaceuticals Inc., that develop, license, manufacture, market and distribute an extensive line of generic and proprietary products.

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

SOURCE Mylan Laboratories Inc.
12/20/2004
CONTACT: Media, Heather Bresch, +1-724-514-1800, or Investors, Kris King, +1-724-514-1800, both of Mylan Laboratories Inc.
Web site: http://www.mylan.com