Cenforce 100 contains the same active ingredient Sildenafil PDE5 inhibitors, A phosphodiesterase type 5 inhibitor is a vasodilating drug that works by blocking the degradative action of cGMP-specific phosphodiesterase type 5 on cyclic GMP in the smooth muscle cells lining the blood vessels supplying various tissues. IT helps in getting and maintaining erections problems. It also helps in treating Erectile Dysfunction & Impotence conditions in adult men.