비아그라에 대한 소문

If the cGMP is destroyed via the phosphodiesterase-five enzyme, the erection ends. Viagra helps prevent phosphodiesterase-5 from destroying cGMP so cGMP stays around extended, which ends up in a far more extended erection. The maximum dose of Viagra is a hundred mg on a daily basis. Doses over the maximum dose, which include two hundred mg per day