비아그라에 대해 알려지지 않은 사실
sudden eyesight loss in a single or both eyes. Sudden vision decline in a single or each eyes can be a sign of a serious eye problem termed non-arteritic anterior ischemic optic neuropathy (NAION). Prevent using VIAGRA and contact your Health care supplier at once Should you have any sudden vision declineVIAGRA may possibly have an effect on the wa