Viagra is a medication used to treat impotence, a condition medically known as erectile dysfunction. Impotence occurs when you are unable to have or sustain an erection during sexual intercourse.
Features
According to MedlinePlus, Viagra belongs to the class of drugs known as phosphodiesterase inhibitors. It works to increase blood flow to the penis, so that an erection results.
Side Effects
MedlinePlus indicates that Viagra's common side effects include back pain, memory loss, nasal congestion, stomach problems and a headache. Serious side effects include shortness of breath, visual changes and sudden vision or hearing loss.
Warning
Do not drink alcohol when taking Viagra, as it can potentiate its side effects. Do not use nitrate medications, such as nitroglycerin or isosorbide mononitrate, while taking Viagra. The combination can lead to potentially fatal hypotension (low blood pressure). This can result in fainting, a heart attack or death, according to Drugs.com.
Other Uses
Viagra may be also used to treat pulmonary arterial hypertension, a condition in which the blood vessels in the lungs are constricted, according to MedlinePlus. It works to loosen the blood vessels in the lungs and allows for easier blood flow to them.
Generic Name
Drugs.com indicates that Viagra's generic name is sildenafil.
