VIAGRA CAN BE FUN FOR ANYONE

Sildenafil is actually a potent and selective inhibitor of cGMP-distinct phosphodiesterase type 5 (PDE5), which is responsible for degradation of cGMP within the corpus cavernosum. The molecular composition of sildenafil is similar to that of cGMP and acts for a aggressive binding agent of PDE5 within the corpus cavernosum, leading to far more cGMP