THE BEST SIDE OF VIAGRA

Sildenafil is a powerful and selective inhibitor of cGMP-unique phosphodiesterase sort 5 (PDE5), and that is accountable for degradation of cGMP while in the corpus cavernosum. The molecular composition of sildenafil is similar to that of cGMP and acts as being a competitive binding agent of PDE5 within the corpus cavernosum, resulting in extra cGM