Levitra.
Levitra (vardenafil) is a popularly prescribed drug that belongs to the class of PDE5 inhibitors and is often used to treat male impotence. You may need to take Levitra if you are unable to get an erection that would be satisfactory and would allow sufficient penetration. The effects of Levitra are based on dilating the blood vessels in your penis, therefore making it possible for you to get an erection likely to last for as long as you need to complete sexual intercourse. Both mild and more serious side effects are possible. You will need to make sure you tell your doctor about such serious side effects as swelling in your hands, ankles, or feet, sudden vision loss, vision changes, shortness of breath, light-headedness, seizure, pain spreading to the arm or shoulder, ringing in your ears, chest pain, and irregular heartbeat. In most cases, however, only mild side effects are likely to be experienced. You will need to make sure you watch the following mild side effects carefully to see if they go away or change in intensity: flushing, heartburn, stuffy or runny nose, flu-like symptoms, upset stomach, and headache.