비아그라 효능에 대한 5가지 간단한 설명 설명

Viagra can help you have an erection when sexual stimulation takes place. An erection will not arise just by having a pill. Observe your medical doctor's instructions.My doctor prescribed 50mg, which I took, and approx. 35 minutes later on I realized some an erection that lasted a lot less than a minute. Quite DISAPPOINTED! I'm 84 and a retired Ski