What country does Viagra come from?

In July, 2000, Viagra was approved as a prescription drug in China with the name of Viagra. In September, 20001year, China National Intellectual Property Administration approved the patent use of Viagra in China, and in May, 2004, it was allowed to retail in pharmacies.

According to media reports, the word Viagra has been generalized from "Viagra" specifically referring to Pfizer to "a drug for treating sexual dysfunction".

Pfizer, USA and Guangzhou willman Pharmaceutical Co., Ltd. have conducted many civil and administrative lawsuits on disputes related to Viagra trademarks. Finally, Guangzhou willman Pharmaceutical Co., Ltd. obtained the trademarkNo.191818 "Viagra".