This drug treats the problem of erectile dysfunction (impotence). Erectile dysfunction is a ***** condition that affects men and makes them unable to achieve an erection firm enough to maintain ***** intimacy. Cenforce 200 mg is a PDE 5 inhibitor that inhibits the PDE 5 enzyme that causes penile agitation. This drug dilates blood vessels, thereby increasing blood flow to the penile area. Cenforce 200 mg is the main ingredient of this drug, Sildenafil. Sildenafil helps treat erectile dysfunction by reducing the effects of phosphodiesterase type 5 (PDE 5), a naturally occurring chemical found in the *****. Sildenafil citrate helps dilate (relax) blood vessels during sex. In turn, it increases the amount of blood circulating in the penile area. This helps men maintain and achieve an effective ***** erection.