THE ULTIMATE GUIDE TO VIAGRA

Sildenafil can be a potent and selective inhibitor of cGMP-distinct phosphodiesterase sort 5 (PDE5), which is chargeable for degradation of cGMP while in the corpus cavernosum. The molecular construction of sildenafil is similar to that of cGMP and functions being a competitive binding agent of PDE5 from the corpus cavernosum, resulting in much mor