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In cases sudden vision loss with Viagra pills use has occurred most often in people with heart disease, diabetes, high blood pressure, high cholesterol, or certain pre-existing eye problems, and in those who smoke or are over 50 years old, because stop using Viagra pills and get emergency medical help if you have sudden vision loss.

Generally these pills Viagra take if you are also using a nitrate drug for chest pain or heart problems, so this includes nitroglycerin, isosorbide dinitrate, and isosorbide mononitrate, and nitrates are also found in some recreational drugs such as amyl nitrate or nitrite, thus taking Viagra pills with a nitrate medicine can cause a serious decrease in blood pressure, leading to fainting, stroke, or heart attack.

However, small number of patients have had a sudden loss of eyesight after taking Viagra pills, thus this type of vision loss is caused by decreased blood flow to the optic nerve of the eye, then it is not clear whether Viagra pills is the actual cause of such vision loss.

It is to be noted that you should not take Viagra pils if you are using a nitrate drug for chest pain or heart problems at this moment because it can cause a serious decrease in blood pressure, leading to fainting, stroke, or heart attack.