LITTLE KNOWN FACTS ABOUT VIAGRA.

Sildenafil is actually a powerful and selective inhibitor of cGMP-unique phosphodiesterase form five (PDE5), and that is responsible for degradation of cGMP inside the corpus cavernosum. The molecular construction of sildenafil is analogous to that of cGMP and acts like a aggressive binding agent of PDE5 during the corpus cavernosum, resulting in f