Erectile dysfunction (ED) drug Viagra has made a lot of people very happy, but ironically it might also have made their outlook rather blue. A man taking high doses of the erectile dysfunction drug Viagra report seeing a blue haze, but until now nobody has studied whether normal doses of the drug affect vision. And since most people turn off the lights after taking Viagra, such side effects are likely to be under-reported in most of the cases.
To investigate this matter, investigators took a standard 100-milligram dose of Viagra. To test if the drug disrupted their ability to pick out changes in images against a blue background, the men watched a flashing red circle on a blue screen. Each found that their ability to distinguish very high-frequency flashes from solid patterns was reduced for up to two hours after taking the Viagra though the problem was temporary. Viagra, Cialis and Levitra are widely used ED drugs and they’ve provided relief to millions of ED sufferers.
Tags: Generic Cialis, Generic Viagra, Viagra
