LITTLE KNOWN FACTS ABOUT VIAGRA.

Sildenafil is actually a strong and selective inhibitor of cGMP-particular phosphodiesterase variety five (PDE5), which can be chargeable for degradation of cGMP within the corpus cavernosum. The molecular framework of sildenafil is analogous to that of cGMP and acts as being a competitive binding agent of PDE5 while in the corpus cavernosum, leadi