Erectile dysfunction (impotence; inability to get or keep an erection) in men is treated with sildenafil (Viagra). In adults with pulmonary arterial hypertension, sildenafil (Revatio) is used to improve their ability to exercise (PAH; high blood pressure in the vessels carrying blood to the lungs, causing shortness of breath, dizziness, and tiredness).
Children should not usually take sildenafil, but a doctor may decide that sildenafil (Revatio) is the best medication for a child’s condition in some cases.
Sildenafil belongs to the class of drugs known as phosphodiesterase (PDE) inhibitors. The Sildenafil improves blood flow to the penis during sexual stimulation, which helps to treat erectile dysfunction.
An erection may result from the increased blood flow. Sildenafil treats PAH by allowing blood to flow freely by relaxing the blood vessels in the lungs.
If you’re taking sildenafil to treat erectile dysfunction, keep in mind that it won’t cure it or make you more sexually desire. Sildenafil does not protect against pregnancy or sexually transmitted diseases like the human immunodeficiency virus (HIV).
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