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Impotence Drugs to Add Warning About Hearing Loss

U.S. regulators said warnings about the risk of sudden hearing loss linked to popular drugs for impotence, including Viagra, Cialis and Levitra, would be added to the drugs' labels.

Pfizer's Viagra
AP
Pfizer's Viagra

The Food and Drug Administration was prompted to look into a possible connection after a published report of a man taking Viagra, made by Pfizer, who suffered from
sudden hearing loss, a rare condition.

Eli Lilly sells Cialis and GlaxoSmithKline sells Levitra.

A further review of the FDA's side effect data found 29 cases of sudden hearing loss with a relationship to the three drugs. In two-thirds of the cases, the hearing loss was ongoing, the agency said.

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