비아그라에 대해 거의 알려지지 않은 사실

Sildenafil belongs to a class of medicines named phosphodiesterase type 5 (PDE5) inhibitors. A class of medications is a group of prescription drugs that work in the same way. These drugs are frequently employed to deal with identical disorders.For those with sickle cell anemia: This drug could cause a common distressing complication of sickle mobi