Cenforce 100 is the best drug for men when it comes to solving their sexual problems. Cenforce 100 takes you one hour before sexual intercourse. The effect of indigestion lasts for 5-6 hours. Sildenafil acts as the active ingredient in Cenforce 100mg. ED is the best drug to solve the problem. ED is the best drug to solve the problem. Must take only one in a day. Is the best drug used by men.