This type of Cenforce drug is used when you are suffering from the problem of impotence. Sildenafil acts as the active ingredient in the Cenforce drug. Cenforce drug is taken 1 hour before intercourse, after which its effect lasts for 4-5 hours. Cenforce tablets are widely used. Cenforce is one of the best tablets for impotence. Consult a doctor before taking Cenforce. Cenforce is also found in different powers.