Vigora 100 Mg is a generic medication that contains sildenafil citrate, the active ingredient in Viagra. It is used to treat erectile dysfunction and pulmonary arterial hypertension in men. It works by increasing blood flow to the penis, thereby helping men achieve and maintain an erection. It also helps reduce symptoms of pulmonary arterial hypertension, such as shortness of breath, chest pain, and fatigue. Vigora 100 Mg is available as a tablet and can be taken with or without food.