Impotence drug users report rare cases of blindness

Impotence drug users report rare cases of blindness

The FDA is investigating reports that rare cases of blindness are occurring among men using the impotence drugs Viagra and Cialis.  Coming at an especially bad time for the drug industry in light of recent drug recalls, the FDA has 42 reports of the type of blindness called NAION – 38 among Viagra users and four among Cialis users.

NAION, or non-arteritic anterior ischemic optic neuropathy can occur in men who are diabetic or have heart disease – which is the same conditions that can cause impotence and lead to Viagra and Cialis use.  Approved in 1998, Viagra has become a household name and blockbuster drug.  

Viagra was approved to treat erectile dysfunction but should not be used by men with heart conditions whose doctors have warned them to avoid sex.  Patients also taking drugs that contain nitrates have been warned not to take Viagra because of the sudden, unsafe drops in blood pressure.  Other warnings on Viagra’s label include erections lasting longer than four hours, painful erections lasting longer than six hours, headache, flushed skin and vision problems.  

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