Sildenafil, commonly known as Viagra, is employed to address erectile dysfunction, a condition characterized by the inability to achieve or sustain an erection in men. On the other hand, Sildenafil in the form of Revatio is utilized to enhance exercise capacity in adults grappling with pulmonary arterial hypertension (PAH), which entails elevated blood pressure within the vessels responsible for transporting blood to the lungs, often resulting in symptoms like breathlessness, dizziness, and fatigue.