viagra Things To Know Before You Buy
Sildenafil is a strong and selective inhibitor of cGMP-precise phosphodiesterase form 5 (PDE5), that is accountable for degradation of cGMP within the corpus cavernosum. The molecular composition of sildenafil is analogous to that of cGMP and functions to be a aggressive binding agent of PDE5 from the corpus cavernosum, resulting in a lot more cGMP