Viagra Linked to Hearing Loss

Add hearing loss to the list of potential side effects of Viagra and other drugs to treat sexual dysfunction. The federal Food and Drug Administration will add a warning about the risk to the labels of Viagra, Cialis, Levitra and a hypertension drug, Revatio, which contains the same ingredient as Viagra. There have been 29 cases of hearing loss linked to the drugs in 10 years.

"We don't know enough to say that it's ironclad caused by the drugs, but we see enough to say we can't ignore it ," said an FDA official.  Hearing loss is also linked to other conditions such as age, diabetes and heart disease, that can lead to impotence. (More Hearing loss stories.)