Pfizer In Talks With FDA Over Viagra Label Update To Reflect Vision Loss
• By Steele Thomas
Discussions follow an FDA investigation prompted by journal article reporting 15 cases of non-arteritic anterior ischemic optic neuropathy in sildenafil patients. Pfizer said a review of 103 clinical trials found no reports of the NAION; the company has submitted 23 cases to FDA since Viagra entered the market in 1998.
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