Levitra is used to treat erectile dysfunction, Erectile dysfunction, also known as impotence in adult males, is the inability to obtain and/or maintain a hard erect penis suitable for sexual activity. Levitra tablets contain the active ingredient vardenafil (present as vardenafil hydrochloride trihydrate) which belongs to a group of medicines called phosphodiesterase type 5 inhibitors. These work by relaxing the blood vessels in the penis when you are sexually aroused. This allows blood to flow into the penis, allowing you to get an erection in the natural way. Levitra will only work if you are sexually excited. It will not increase your sex drive. Levitra is not approved for use in women. Levitra tablets are not addictive.