비아그라 - 개요
Viagra is meant for use in Males, which is unlikely to be used in Girls who will be pregnant or breastfeeding. Even so, Viagra is not really expected for being hazardous to the fetus.Sildenafil improves the outcome of NO by inhibiting phosphodiesterase sort five (PDE5), that is chargeable for degradation of cGMP inside the corpus cavernosum. Silden