Cenforce is also available in different strengths. It is the best drug for solving sexual problems. Sildenafil acts as the active ingredient in Cenforce A pills. Cenforce is taken one hour before sex. After taking it its effect remains for 5-6 hours. Cenforce is widely used. Widely used by men. It is advisable to consult a doctor before taking Cenforce. This Cenforce is used only once in a day. Cenforce should be kept away from small children and pets.