What is VIAGRA? VIAGRA is a pill used to treat erectile dysfunction (impotence) in men. It can help many men who have erectile dysfunction get and keep an erection when they become sexually excited (stimulated). You will not get an erection just by taking this medicine. VIAGRA helps a man with erectile dysfunction get an erection only when he is sexually excited.

How VIAGRA works: In many men with erectile dysfunction, VIAGRA helps the body's natural erection process. When a man is sexually excited, the penis will fill with enough blood to cause an erection. After sex is over, the erection goes away.

VIAGRA is not for everyone: VIAGRA is only for patients with erectile dysfunction. VIAGRA is not for newborns, children, or women. Research is underway into the possible effectiveness of Viagra for Women, however until the results are known, we do not recommend the use of VIAGRA by women. Do not let anyone else take your VIAGRA. VIAGRA must be used only under a doctor's supervision.

VIAGRA must never be used by men who are taking any medicines that contain nitrates. Nitrates are found in many prescription medicines that are used to treat angina (chest pain due to heart disease) such as: nitroglycerin (sprays, ointments, skin patches or pastes, and tablets that are swallowed or dissolved in the mouth) isosorbide mononitrate and isosorbide dinitrate (tablets that are swallowed, chewed, or dissolved in the mouth)

Nitrates are also found in illicit drugs such as amyl nitrate or nitrite ("poppers"). If you are not sure if any of your medicines contain nitrates, or if you do not understand what nitrates are, ask your doctor or pharmacist. If you take VIAGRA with any nitrate medicine or illicit drug containing nitrates, your blood pressure could suddenly drop to an unsafe level. You could get dizzy, faint, or even have a heart attack or stroke.

What VIAGRA does not do: VIAGRA does not cure erectile dysfunction. It is a treatment for erectile dysfunction. VIAGRA does not protect you or your partner from getting sexually transmitted diseases, including HIV-the virus that causes AIDS. VIAGRA is not a hormone or an aphrodisiac.

Possible side effects: Like all medicines, VIAGRA can cause some side effects. These effects are usually mild and do not last long. Some of these side effects are more likely to occur with higher doses. VIAGRA is generally well tolerated. Side effects are rare, but if experienced they are usually mild and temporary.

The following is a list of the most common side effects: Headache, Flushing, Upset Stomach, Stuffy Nose, Urinary Tract Infection, Visual changes such as mild and temporary changes in blue/green colors or increased sensitivity to light, and Diarrhea.