The U.S. Food and Drug Administration has warned several pharmaceutical companies, including Eli Lilly & Co. (LLY) and Bayer AG (BAYRY, BAYN.XE), for either overstating the effectiveness of their medicines or not mentioning risks associated with them in promotional material, according to letters posted to the agency's Web site Tuesday.

The letters were sent to the companies from December 2009 through Jan. 7 of this year and say promotional material from Amylin Pharmaceuticals Inc.'s (AMLN), Cephalon Inc. (CEPH), Eli Lilly and Bayer is misleading. The FDA wants the companies to stop disseminating the misleading material.

The FDA said representatives of Amylin Pharmaceuticals and Eli Lilly exaggerated the diabetes-drug Byetta's ability to help patients lose weight. The companies co-market the product.

The agency said a print advertisement for Eli Lilly's depression-drug Cymbalta "fails to communicate any risk information in the main part of the ad." Cymbalta is associated with numerous risks, including that it may cause patients to contemplate suicide.

The agency reviewed a script for a live program for Bayer's birth-control medicine Mirena and said it doesn't adequately convey that if a woman becomes pregnant while on the medicine she may lose her baby. Bayer had discontinued using the promotional material in February 2009 and will respond to the FDA, a company spokeswoman said.

The agency said a pocket dosing card for Cephalon's non-Hodgkin's lymphoma treatment, Treanda, includes an "extremely limited risk presentation." Treanda may cause fatal allergic reactions or pneumonia.

"Importantly, this presentation omits critical details about the risks it discloses, including the context that some of these risks are frequent, severe and potentially fatal," the agency said in its letter to the company.

- By Jared A. Favole, Dow Jones Newswires; 202-862-9207; jared.favole@dowjones.com

 
 
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