Sildenafil acts as the active ingredient in Cenforce 150 mg. Cenforce 150 tablets are taken by you one hour before sex. The effect lasts for 5-6 hours after taking it. This is one of the best drugs to solve the problem of ED. Cenforce 150 Pills are widely used by men. This is one of the best drugs to solve the problem of ED. It is advisable to keep these pills away from small children and pets.