Pfizer Begins Court Proceedings to Protect Viagra Patent - Pharmaceutical Technology

Pfizer will begin court proceedings in Virginia, US, today to fight to keep the exclusive rights to sell Viagra (sildenafil citrate) through to 2019. The company, based in New York, sued generic maker Teva Pharmaceutical Industries earlier this month to block a copycat version of the drug, which treats erectile dysfunction. The shared feeling in Wall Street is that Pfizer ...