LITTLE KNOWN FACTS ABOUT VIAGRA.

Sildenafil is usually a strong and selective inhibitor of cGMP-precise phosphodiesterase type 5 (PDE5), and that is responsible for degradation of cGMP from the corpus cavernosum. The molecular composition of sildenafil is analogous to that of cGMP and functions for a aggressive binding agent of PDE5 inside the corpus cavernosum, leading to extra c