5 ESSENTIAL ELEMENTS FOR VIAGRA

Sildenafil can be a strong and selective inhibitor of cGMP-certain phosphodiesterase type 5 (PDE5), and that is accountable for degradation of cGMP during the corpus cavernosum. The molecular construction of sildenafil is similar to that of cGMP and functions as being a competitive binding agent of PDE5 inside the corpus cavernosum, leading to addi