Sildenafil is an oral therapy for erectile dysfunction which restores impaired erectile function by increasing blood flow to penis. It is indicated for the treatment of erectile dysfunction in adult males under medical supervision. It is contraindicated in men for whom sexual intercourse is inadvisable due to cardiovascular risk factors such as patients with cardiac failure and unstable angina pectoris. The possibility of undiagnosed cardiovascular disorders in men with erectile dysfunction should be considered before using it. A thorough medical history and physical examination should be undertaken to diagnose erectile dysfunction and determine potential underlying causes before using sildenafil. Advice 1. Do not take sildenafil without doctor’s prescription 2. Avoid smoking and alcohol as it affects your erection 3. Start workout in gym 4. Lose weight if you are overweight Thanks