Sildenafil relaxes muscles found in the walls of blood vessels and increases blood flow to particular areas of the body. Sildenafil under the name is used to treat erectile dysfunction (impotence) in men. Sildenafil is used to treat high blood pressure in the lungs (pulmonary hypertension). It works by relaxing and widening the blood vessels in your lungs which allows the blood to flow more easily.

Sildenafil relaxes muscles found in the walls of blood vessels and increases blood flow to particular areas of the body. Sildenafil under the name is used to treat erectile dysfunction (impotence) in men. Sildenafil is used to treat high blood pressure in the lungs (pulmonary hypertension). It works by relaxing and widening the blood vessels in your lungs which allows the blood to flow more easily.