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Updated labeling for Viagra, Levitra and Cialis were approved by the Food and Drug Administration to show little post-marketing information of sudden vision loss, ascribed to NAION (it is not an arthritic ischemic optic neuropathy), a situation when the optic nerve is blocked by blood flow.

According to FDA advice, you should give up taking these medicines, and call healthcare provider or a doctor right now if you feel decreased or sudden loss of vision in both or one eye. Then if you take or just going to take these medicines you should inform your health care professionals if you have ever had serious loss of vision, which might reproduce a preceding episode of NAION. Such people are at an enlarged risk of developing NAION yet again.

Also, it’s just absolutely impossible to know if these oral preparations for erectile dysfunction were the reason of the eyesight loss or if the problem is connected with other factors: diabetes or high blood pressure, or to a mixture of these problems.

Cialis and Viagra(buy viagra online) May Cause Increased Optic Nerve Damage Risk If Men Experience Cardiovascular Problems

Cialis and Viagra, the medicines used to treat erectile dysfunction, may be connected with an enlarged optic nerve damage risk if men have a history of high blood pressure or heart attack, gives a small study in the Ophthalmology British Journal(cheap herbal phentermine).

Doctors should warn people about the potential risk of these drugs, the authors say. All results are based on seventy-six men who attend one United States’ specialist eye health center. Half of the people experienced optic nerve damage that was diagnosed as NAION (non-arteritic anterior ischaemic optic neuropathy).

The most regular type of optic nerve damage is NAION among older American adults, with up to six thousand developing the problem each year. Every fourth will continue to develop NAION in both eyes.

The other part, selected accidentally and didn’t have the problem, was regarded as a comparison group.

All the members of this experiment answered the questions about their way of life, whether they took alcohol and smoked, whether they had had with diabetes, high blood pressure or heart disease, and prearranged treatment for these diseases. They answered also whether Cialis and Viagra had been prescribed for them.

Both groups had similar characteristics of lifestyle, race, and age, and men having optic nerve damage might not more have taken the drugs for impotency than men in the other group. However those who had experienced a heart attack might ten times more have optic nerve damage if before the diagnosis they had taken Cialis or Viagra.

People experienced high blood pressure also might more have optic nerve damage if they had used these medicines, though this wasn’t statistically considerable.

The authors notify that their study isn’t big, however, it suggests that the medicines may decrease the blood flow just to the anterior optic nerve, causing tissue damage. The medicines may increase the NAION risk for those who have vascular disease, for those who are more at risk.

Every patient who has undergone a sudden serious vision loss, and he is prescribed Cialis or Viagra, ought to tell their doctors at first.

Some men getting impaired eyesight as a NAION result have sued Pfizer, the Viagra manufacturers.
The editorial continues saying that Pfizer has reported that there was no information of NAION in the trials of the medicine carried out previous to the drug was licensed, and that more cases concerning this sort of medicine would have been reported by present if the organization was anything other than simultaneous.

However, the editorial reports that doctors can’t be asking people diagnosed with NAION if they use Cialis or Viagra.

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