THE BEST SIDE OF VIAGRA

Sildenafil is often a strong and selective inhibitor of cGMP-unique phosphodiesterase type 5 (PDE5), that is liable for degradation of cGMP while in the corpus cavernosum. The molecular framework of sildenafil is comparable to that of cGMP and acts being a competitive binding agent of PDE5 from the corpus cavernosum, causing far more cGMP and great