+The Cenforce drug is primarily the best drug used by men. Sildenafil acts as the active ingredient in the Cenforce drug. The Cenforce drug is used to treat when you are unable to have sex. The Cenforce drug is also found in different strengths. Cenforce Drug is a drug prescribed by a doctor as it is a prescription drug. different strengths. Cenforce Drug is a drug prescribed by a doctor as it is a prescription drug.