News Release Detail

January 20, 2004

Mylan Announces Conference Call Date for Third Quarter Fiscal 2004 Financial Results and Guidance for Fiscal 2005

Mylan Announces Conference Call Date for Third Quarter Fiscal 2004 Financial Results and Guidance for Fiscal 2005PITTSBURGH, Pa.--(BUSINESS WIRE)--Jan. 20, 2004--Mylan Laboratories Inc. (NYSE: MYL) announced today that it will release its third quarter fiscal 2004 financial results and guidance for fiscal 2005 before the market opens on Thursday, January 29, 2004.

Mylan management will host a conference call and live Webcast on Thursday, January 29, 2004 at 10:00 AM ET to discuss its third quarter fiscal 2004 financial results and guidance for fiscal 2005. The dial-in-number to access this call is (913) 981-4900. In addition to the live call, a replay will be available from approximately 12:00 PM ET on January 29, through 12:00 PM ET February 5, and can be accessed by dialing (719) 457-0820 with access pass code 512105.

To access the live Webcast, go to Mylan's website at www.mylan.com and click on the Webcast icon at least 15 minutes before the call is to begin to register and download or install any necessary audio software. If you are unable to listen to the live Webcast, please access www.mylan.com at any time within seven days to listen to a replay of the Webcast.

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

    CONTACT: Mylan Laboratories Inc.
             Kris King, 724/514-1800

    SOURCE: Mylan Laboratories Inc.