비아그라 - 개요

Once the cGMP is wrecked with the phosphodiesterase-5 enzyme, the erection finishes. Viagra prevents phosphodiesterase-five from destroying cGMP so cGMP stays all-around more time, which leads to a more prolonged erection. Viagra is just not envisioned to hurt an unborn infant. Convey to your health care provider For anyone who is Expecting or pro