비아그라 효과에 대해 알아야 할 고려 사항
VIAGRA ought to be used with warning, and only once the expected Positive aspects outweigh the dangers, in patients that has a background of NAION. Patients that has a "crowded" optic disc can also be at an elevated chance of NAION. (5.three)Sildenafil is in a category of medications referred to as phosphodiesterase (PDE) inhibitors. Sildenafil tre