HOW VIAGRA CAN SAVE YOU TIME, STRESS, AND MONEY.

Sildenafil is actually a powerful and selective inhibitor of cGMP-specific phosphodiesterase type 5 (PDE5), which happens to be answerable for degradation of cGMP from the corpus cavernosum. The molecular framework of sildenafil is analogous to that of cGMP and functions as being a competitive binding agent of PDE5 while in the corpus cavernosum, c