Viagra
What is it? Overview Usage Side Effects and Warnings
Answers

What is Viagra?

Viagra should not be used in the following conditions:

  • Recent heart attack or stroke
  • Heart failure
  • Concurrent use of nitrate
  • Concurrent use of other medicines for erectile dysfunction
  • Hereditary retinal disorders, such as retinitis pigmentosa

Viagra should be used with caution in the following:

  • Liver or kidney failure
  • Bleeding disorders
  • Ulcer disease
  • Heart disease
  • Concurrent use of blood pressure medicines, especially alpha-blockers
  • The elderly

Viagra must be obtained by prescription. There is important information your doctor needs to know about your health before the medicine is prescribed.

Possible side effects include:

  • Headache
  • Flushing
  • Indigestion
  • Visual...
 
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