비아그라에 대해 알려지지 않은 사실

an erection that will not go away (priapism). When you have an erection that lasts more than 4 several hours, get health-related aid without delay. If It's not necessarily treated straight away, priapism can permanently injury your penisSildenafil improves the outcome of NO by inhibiting phosphodiesterase sort five (PDE5), that is to blame for degr