The difference between a brand name medicine like Viagra and a generic one like Generic Viagra (Sildenafil) is in the name, shape and in the price. A generic drug like Generic Viagra is usually called by the name of the active ingredient Sildenafil while a manufacturer uses a brand name like Viagra. However, a manufacturer cannot possess a patent for a certain chemical agent, this is why manufacturers of generic medications like Generic Viagra can legally produce the so-called "generics". Generic Viagra is the same chemically as brand Viagra and since the active ingredient Sildenafil is identical, they have the same medical effect.

Generic Cialis Tadalafil relaxes muscles and increases blood flow to particular areas of the body. Generic Cialis Tadalafil is used to treat erectile dysfunction (impotence). Generic Cialis Tadalafil may also be used for purposes other than those listed in this medication guide.