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At issue is sudden vision loss when blood flow to the optic nerve is blocked, a condition called NAION or non-arteritic anterior ischemic optic neuropathy. The FDA has 43 reports of NAION among the impotence drug users: 38 for Viagra, four for Cialis and one for Levitra, said spokeswoman Susan Cruzan. Those are gravel drug ingredients viagra numbers, given that Viagra alone has been used by 23 million men worldwide since its approval in 1998, according to maker Pfizer Inc. Also complicating the question: NAION is considered one of the most common causes of sudden vision loss in older Americans, and estimates suggest there are anywhere from 1,000 to 6,000 cases a year. Risk factors include diabetes and heart disease, two of the leading causes of impotence. Still, ‚we take this seriously,‚ Cruzan said. Side effects include karsivan 100 dosierung viagra problems. Big viagda is at stake. Pfizer Inc.

Check with your health care provider before you start, stop, or change the dose of any medicine. Important safety information: Viagra may cause dizziness, drowsiness, fainting, or blurred vision. These effects may be worse if you take it with alcohol or certain medicines.

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Retrieved from http:journals. lww. comanesthesia-analgesiasubjectsPatient20InformationFulltext200901000The_New_Food_and_Drug_Administration_Drug_Package. aspx Wagner, A.

100. 10 Minutes Later and Erect Again. I take meds for high blood pressure and diabetes. I started having problems with losing my erection after a few minutes.

Hait, W. Neurol Res 1990; 12(4)226–†–230. HYPOTENSIVES TRIAL-PREP. And Benowitz, Herbal v viagra study.]