What is Viagra?
Viagra (sildenafil) relaxes muscles and increases blood flow to particular areas of the body.
Viagra is used to solve a problem with erectile dysfunction (impotence) in men. Another brand of sildenafil is Revatio, which is used to treat pulmonary arterial hypertension and improve exercise capacity in both men and women. Caution! Do not take Viagra while taking Revatio, unless your got doctor's permission.
viagra can also be used for other purposes not listed in this reference. cialis