You will find a full list in the manufacturer’s information leaflet supplied with your medicine. If you are taking or using any other medicines. Do not use any other medicine to treat impotence unless your doctor tells you to. One possibly serious, but rare, side effect with vardenafil is heart attack. Other Effects There have been rare reports of prolonged erections greater than 4 hours and priapism painful erections greater than 6 hours in duration for this class of compounds, including vardenafil. In vivo studies: Nitrates: The blood pressure lowering effects of sublingual nitrates 0.Drugs & Supplements Levitra (Vardenafil) Generic Name: Vardenafil Reviewed: March 21, Vardenafil is used in adult men to treat erectile dysfunction (impotence). Vardenafil may also be used. Levitra, known by the generic name vardenafil hydrochloride, is an erectile dysfunction (ED) medication first manufactured by the German company Bayer Pharmaceuticals in as a competitor to. Erectile dysfunction (sometimes called impotence) means that you cannot get or maintain a proper erection. There are several causes, the most common being due to a narrowing of the arteries that take blood to the penis. Vardenafil works by preventing the action of a chemical in your body, called phosphodiesterase type