비아그라에 대한 5가지 간단한 기술

Viagra is usually a brand-title Model of your generic drug sildenafil. It’s a phosphodiesterase variety five (PDE5) inhibitor. PDE5 can be an enzyme that regulates particular chemical substances in your blood, but as a result of its effect on your body, it may make it harder so that you can get and maintain an erection.Viagra can lower blood move