Cenforce D is one of the best tablets for men with impotence. Cenforce D is taken 1 hour before intercourse. The effect lasts for 4-5 hours after ingestion. Cenforce D is widely used. Couples can enjoy their sex better after taking Cenforce D. Since Cenforce D is a drug used by men, women should not use this drug. Sildenafil acts as the active ingredient in Cenforce D tablets.