Viagra going off patentIn 2005 India adopted a new patent . So pretty soon it's going to . It remains to be seen whether the thoroughgoing . It remains to be seen whether the thoroughgoing . . The drugs going off the patent between 2010 and 2012 are Aricept, Lipitor, Viagra, Detrol and Geodon. drugs will be coming off patent. . s "use patent" for Viagra . . . . . this prevents Novartis from going that route. The generic name of viagra is sildenafil. . Viagra is Pfizer's fifth-biggest drug and ... more