an erection that will not disappear (priapism). If you have an erection that lasts in excess of four hours, get clinical assist instantly. If it is not taken care of at once, priapism can permanently hurt your penis.Th?c ph?m ch?c n?ngD??c m? ph?mCh?m sóc cá nhânThu?cTrang thi?t b? y t???t thu?c onlineTrung tâm Tiêm ch?ngTh?c ph?m ch?c n?ngD??