The uses of Silagra include: Sildenafil (sil-DEN-a-fil) belongs to a group of medicines that delay the enzymes called phosphodiesterases from working too quickly. The penis is one of the areas where these enzymes work. Sildenafil is used to treat men who have erectile dysfunction (also called sexual impotence).
Sildenafil relaxes muscles and increases blood flow to particular areas of the body.
Sildenafil used to treat erectile dysfunction (impotence) in men. Another brand of sildenafil, which is used to treat pulmonary arterial hypertension and improve exercise capacity in men and women.