Generic Viagra Online is the brand name of medicine known as sildenafil which has been shown to be effective for the treatment of erectile dysfunction. Generic Viagra Online contains the same active ingredient as the brand-name drug, in this case, sildenafil citrate, and is therapeutically equivalent to the brand-name drug Generic Viagra Online. The main difference between a brand name and a generic product is primarily the price, with the generic usually being cheaper. Sildenafil Tadalafil Avanafil (SPEDRA) Vardenafil (GENERIC LEVITRA) Dapoxetine