비아그라에 대한 편견 없는 견해

Once the cGMP is destroyed via the phosphodiesterase-five enzyme, the erection ends. Viagra helps prevent phosphodiesterase-five from destroying cGMP so cGMP stays close to for a longer time, which leads to a far more extended erection. Drug interactions may perhaps change how your drugs operate or improve your danger for major Unwanted side effec