NEW STEP BY STEP MAP FOR VIAGRA

Sildenafil is really a strong and selective inhibitor of cGMP-distinct phosphodiesterase form 5 (PDE5), that is responsible for degradation of cGMP in the corpus cavernosum. The molecular structure of sildenafil is comparable to that of cGMP and acts as a aggressive binding agent of PDE5 from the corpus cavernosum, leading to much more cGMP and amp