Sildenafil is the active ingredient in Viagra. viagra 974 is a brand name for the medication containing sildenafil.
Both are used to treat erectile dysfunction, but sildenafil is the generic version while Viagra is the brand name version.
Sildenafil is the active ingredient in Viagra. viagra 974 is a brand name for the medication containing sildenafil.
Both are used to treat erectile dysfunction, but sildenafil is the generic version while Viagra is the brand name version.