DETAILED NOTES ON VIAGRA

Sildenafil is actually a potent and selective inhibitor of cGMP-unique phosphodiesterase type five (PDE5), which is liable for degradation of cGMP from the corpus cavernosum. The molecular structure of sildenafil is comparable to that of cGMP and functions being a aggressive binding agent of PDE5 in the corpus cavernosum, resulting in a lot more cG