Vardenafil is the active ingredient in Levitra. Vardenafil is a prescribed drug that is used primarily to treat erectile dysfunction (ED), also known as impotence, which is the inability to get or maintain an erection satisfactory for intercourse.

Clinical studies have found Vardenafil to be highly effective for the treatment of ED in patients who have diabetes, hypertension, and dyslipidemia (high cholesterol). Further studies revealed that men with low testosterone as well as ED respond well to Vardenafil in combination with a testosterone replacement regimen.