Hi. I was thinking about Viagra or Cialis but afraid to try. Heard that Viagra and Cialis cause blindness??? Is the possible? Or is it just an urban myth? Any info?
Hi. Yeah, heard about some reports of blindness among men who used Viagra and Cialis but I think that`s an urban myth or something. However, you have some real, serious warnings about Viagra. Viagra is not to be used by men who take nitrate-containing drugs and it can be the cause of some temporary vision changes. But I don`t think that it can be the cause of blindness, there is no evidence. And I know Cialis can cause dizziness, a heart attack, stroke, or your blood pressure to drop to an unsafe level.
More than 27 million men use Viagra and there is no evidence to show a link between Viagra and blindness after ten years of safety monitoring and clinical studies. The pharmacy conducts over 130 clinical trials before launching a drug.
According to Pfizer, the vision loss is a result of NAION, non-arteritic anterior ischemic optic neuropathy. It is a common acute optic nerve disease seen in adults and shares the common risk factors with erectile dysfunction. A report suggests that men who were at the risk of NAION suffered vision loss within 36 hours of taking Viagra.
On May 27, Pfizer announced its willingness to work closely with FDA and revise labeling of the drug. Pfizer agreed to include the report-facts in Viagra label to inform patients and physicians. Pfizer urged FDA to give similar instructions to other pharmaceuticals manufacturing Erectile Dysfunction medicines.
Pfizer does not believe that the risk of NAION is any greater in Viagra users than in men not taking the drug. The most common side effects of Viagra are headache, facial flushing and upset stomach. Blurred vision or sensitivity to light are rare side effects found in Viagra users and our wonder drug does not initiate any form of vision loss, states Pfizer.
According to Pfizer, the vision loss is a result of NAION, non-arteritic anterior ischemic optic neuropathy. It is a common acute optic nerve disease seen in adults and shares the common risk factors with erectile dysfunction. A report suggests that men who were at the risk of NAION suffered vision loss within 36 hours of taking Viagra.
On May 27, Pfizer announced its willingness to work closely with FDA and revise labeling of the drug. Pfizer agreed to include the report-facts in Viagra label to inform patients and physicians. Pfizer urged FDA to give similar instructions to other pharmaceuticals manufacturing Erectile Dysfunction medicines.
Pfizer does not believe that the risk of NAION is any greater in Viagra users than in men not taking the drug. The most common side effects of Viagra are headache, facial flushing and upset stomach. Blurred vision or sensitivity to light are rare side effects found in Viagra users and our wonder drug does not initiate any form of vision loss, states Pfizer.