levitra

Generic Name: vardenafil (var DEN a fil) Brand Names: Levitra

levitra is a phosphodiesterase inhibitor. It works by helping to relax muscles and increase blood flow into the penis during sexual stimulation. This helps men to achieve and maintain an erection. levitra is used to treat erectile dysfunction (impotence). levitra may also be used for purposes other than those listed in this medication guide.

Do not take levitra if you are also using a nitrate drug for chest pain or heart problems. This includes nitroglycerin (Nitrostat, Nitrolingual, Nitro-Dur, Nitro-Bid, and others), isosorbide dinitrate (Dilatrate-SR, Isordil, Sorbitrate), and isosorbide mononitrate (Imdur, ISMO, Monoket). Nitrates are also found in some recreational drugs such as amyl nitrate or nitrite ("poppers"). Taking levitra with a nitrate medicine can cause a serious decrease in blood pressure, leading to fainting, stroke, or heart attack. During sexual activity, if you become dizzy or nauseated, or have pain, numbness, or tingling in your chest, arms, neck, or jaw, stop and call your doctor right away. You could be having a serious side effect of levitra. Do not take levitra more than once a day. Allow 24 hours to pass between doses. Contact your doctor or seek emergency medical attention if your erection is painful or lasts longer than 4 hours. A prolonged erection (priapism) can damage the penis. levitra can decrease blood flow to the optic nerve of the eye, causing sudden vision loss. This has occurred in a small number of people taking levitra, most of whom also had heart disease, diabetes, high blood pressure, high cholesterol, or certain pre-existing eye problems, and in those who smoke or are over 50 years old. It is not clear whether levitra is the actual cause of vision loss. Stop using levitra and get emergency medical help if you have sudden vision loss.

Do not take levitra if you are also using a nitrate drug for chest pain or heart problems. This includes nitroglycerin (Nitrostat, Nitrolingual, Nitro-Dur, Nitro-Bid, and others), isosorbide dinitrate (Dilatrate-SR, Isordil, Sorbitrate), and isosorbide mononitrate (Imdur, ISMO, Monoket). Nitrates are also found in some recreational drugs such as amyl nitrate or nitrite ("poppers"). Taking levitra with a nitrate medicine can cause a serious decrease in blood pressure, leading to fainting, stroke, or heart attack. Before taking levitra, tell your doctor if you are allergic to any drugs, or you have: * heart disease or heart rhythm problems; * a recent history (in the past 6 months) of a heart attack, angina (chest pain), or congestive heart failure; * a recent history of stroke or blood clots; * a personal or family history of "Long QT syndrome"; * high or low blood pressure; * liver disease; * kidney disease (or if you are on dialysis); * a blood cell disorder such as sickle cell anemia, multiple myeloma, or leukemia; * a bleeding disorder such as hemophilia; * a stomach ulcer; * retinitis pigmentosa (an inherited condition of the eye); * a physical deformity of the penis (such as Peyronie s disease); or * if you have been told you should not have sexual intercourse for health reasons. If you have any of these conditions, you may need a dose adjustment or special tests to safely take levitra. levitra can decrease blood flow to the optic nerve of the eye, causing sudden vision loss. This has occurred in a small number of people taking levitra, most of whom also had heart disease, diabetes, high blood pressure, high cholesterol, or certain pre-existing eye problems, and in those who smoke or are over 50 years old. It is not clear whether levitra is the actual cause of vision loss.Stop using levitra and get emergency medical help if you have sudden vision loss. FDA pregnancy category B: Although levitra is not for use in women, this medication is not expected to be harmful to an unborn baby. Do not use levitra without telling your doctor if you are pregnant or plan to become pregnant during treatment. Although levitra is not for use in women, it is not known if vardenafil passes into breast milk or if it could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.

Take levitra exactly as it was prescribed for you. Do not take it in larger doses or for longer than recommended by your doctor. Take each dose with a full glass of water. levitra can be taken with or without food. levitra is usually taken only when needed, about 60 minutes before sexual activity. The medication can help achieve an erection when sexual stimulation occurs. An erection will not occur just by taking a pill. Follow your doctor s instructions. Do not take levitra more than once a day. Allow 24 hours to pass between doses. Contact your doctor or seek emergency medical attention if your erection is painful or lasts longer than 4 hours. A prolonged erection (priapism) can damage the penis. Store levitra at room temperature away from moisture and heat.

Since levitra is used as needed, you are not likely to be on a dosing schedule.

Seek emergency medical attention if you think you have used too much of this medicine. Overdose symptoms may include back pain, muscle pain, or vision problems.

Avoid drinking alcohol, which can increase some of the side effects of levitra. Grapefruit and grapefruit juice may interact with levitra. Discuss the use of grapefruit products with your doctor. Do not increase or decrease the amount of grapefruit products in your diet without first talking to your doctor. Do not use any other drug to treat impotence, such as alprostadil (Caverject, Muse, Edex) or yohimbine (Yocon, Yodoxin, others), unless your doctor tells you to.