These pills remove the problem of sex. Sildenafil is a drug used to treat ED in men. It is necessary to take the medicine within 1 hour or 30-35 minutes before you engage in sexual activity. It relaxes the muscles. It works well in getting a strong erection. It increases the speed of the blood. It works by making it more exciting with its partner. cenforce pills affect the person. It ad will affect 4-5 hours.