cenforce is a classPDE inhibitor of the active ingredient sildenafil citrate. In other words,sildenafil citrate cenforce isprescribed by doctors to treat erectile dysfunction (ED) or impotence in men.cenforce is an FDA approved drug for thetreatment of ED. When a patient cannot achieve a hard erection, he loses confidence in sex. In such cases, sildenafil citrate cenforce is prescribed by a doctor