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Contraindications

From Wikipedia, the free encyclopedia

Contraindications include:

  • When taking nitric oxide donors, organic nitrites and nitrates, such as glyceryl trinitrate (nitroglycerin), sodium nitroprusside, amyl nitrite ("poppers")
  • In men for whom sexual intercourse is inadvisable due to cardiovascular risk factors
  • Severe hepatic impairment (decreased liver function)
  • Severe impairment in renal function
  • Hypotension (low blood pressure)
  • Recent stroke or heart attack
  • Hereditary degenerative retinal disorders (including genetic disorders of retinal phosphodiesterases)

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