DETAILED NOTES ON VIAGRA

Sildenafil is a powerful and selective inhibitor of cGMP-unique phosphodiesterase sort five (PDE5), that is to blame for degradation of cGMP within the corpus cavernosum. The molecular composition of sildenafil is similar to that of cGMP and acts like a competitive binding agent of PDE5 while in the corpus cavernosum, leading to additional cGMP and