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The difference would be that the results of Viagra don’t last quite prolonged (only about four to six several hours). Viagra is often taken in advance of an predicted sexual exercise.VIAGRA may possibly have an affect on just how other medicines do the job, and other medicines may perhaps have an impact on how VIAGRA will work, causing Unwanted e

sudden vision loss in one or each eyes. Sudden vision loss in a single or both of those eyes can be a sign of a significant eye trouble identified as non-arteritic anterior ischemic optic neuropathy (NAION).Taking sildenafil in combination with nitrates or nitroglycerin (normally prescribed for heart disorders) may result in a severe drop in blood