( Impotence drug such as Viagra use is li...)Impotence drug such as Viagra may cause Vision Loss,Health

Impotence drug such as Viagra use is linked to development of vision disorders. It is found that 19% of people with// vision disorders have used Viagra medicines. It is found that it contains three phosphodiesterase 5 (PDE5) inhibitors which is found to cause risk of blindness. Men most at risk for the vision loss are those older than 50 who have diabetes, heart disease, high blood pressure and high cholesterol, among other ailments. The US consumers groups want the impotence drug to carry 'Strong Warning Labels' which mentions about the side effects of these drugs. Even doctors and pharmacists are not aware of the side effects caused by the drug so, letters should be sent to doctors regarding the risk of blindness due to impotence drugs. Earlier this year drug makers agreed to put information on their impotence drug labels about the possible vision loss, called non-arteritic anterior ischemic optic neuropathy.

U.S. consumer group Public Citizen said on Thursday in a petition filed with health regulators that 'U.S. Food and Drug Administration should immediately, add a black box warning regarding the risks of drug-induced blindness for the three phosphodiesterase 5 (PDE5) inhibitors that are prescribed for the treatment of erectile dysfunction'.

Pharmaceutical Company:
Pfizer Inc.'s pulmonary hypertension drug Revatio, which has the same active ingredient as its impotence drug Viagra, should also carry a similar black box warning, the strongest warning the agency can require, the advocacy group said. Viagra, Cialis, sold by Eli Lily & Co. and Icos Corp. and Levitra, sold by GlaxoSmithKline, Bayer AG and Schering-Plough Corp. now carry the new labels, which say the condition "has been reported rarely. Both the companies and the FDA have said the cause of the blindness is not known.

Public Citizen:
The Public Citizen petitioner said, 'The fact that Viagra's large numbers of adverse reaction reports occurred with
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