Category Archives: Pharmaceuticals

Pfizer`s Viagra Patent Invalidated Due to Failure to Disclose

Posted on November 12, 2012 by mjwhitekingston

The Supreme Court of Canada has invalidate Pfizer’s Canadian patent on Viagra, citing the drug-maker’s failure to disclose essential information about the main ingredient, sildenafil citrate, in the original application, which was filed in 1994 and granted in 1998. (CA … Continue reading →

Posted in Disclosure, Drugs, Generics, Pfizer, Pharmaceuticals, Teva | Leave a comment