Viagra

Stethescope

Viagra, manufactured by Pfizer, was the first erectile-dysfunction drug of its kind to be approved by the Food and Drug Administration. The drug, which is Sildenafil citrate, is used to treat male erectile dysfunction and pulmonary arterial hypertension.

Attention has been brought to a number of cases of nonarteritic ischemic optic neuropathy related to the use of Viagra. This is characterized as a stroke of the eye and occurs when blood flow to the optic nerve is blocked, resulting in nerve injury and permanent vision loss. In some cases, men showed symptoms within 36 hours of taking Viagra.

Patients suffering from this condition have had arteriosclerotic risk factors such as hypertension, diabetes or hyperlipidemia, along with low cup-to-disk ratios. The onset of the condition directly after the ingestion of Viagra supports an association between the two.

To learn more about legal claims relating to Viagra, consult an attorney who practices in the area of drugs and medical devices.