Vilitra 20 is a male enhancement drug used to treat impotence. The form of this drug is solid oral pills. Vardenafil, a generic drug used to treat erectile dysfunction, is included in it. Vardenafil inhibits phosphodiesterase 5 (PDE5). By increasing blood flow in the vessels, it results in a firmer penis. The medicine is used to treat erectile dysfunction and premature ejaculation. Vilitra needs a prescription and is not available over-the-counter in the US.