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Naltrexone Contraindications

Naltrexone (Revia®) is a medication prescribed to help prevent a relapse in people who are trying to stop drinking or stop using opioid medications. Although this can be an effective form of treatment, it is not suitable for some people.
Some contraindications for naltrexone apply to people who have problems with their kidneys or liver. In addition, this drug should not be used in people who:
  • Are having opioid withdrawal symptoms.
  • Have opioids in their urine (your healthcare provider may order a urine test) or have opioid withdrawal symptoms after a naloxone challenge test.
  • Have acute hepatitis or liver failure.
  • Are allergic to Revia, naltrexone, or any of the inactive components used to make the medication. Your healthcare provider or pharmacist has a list of the inactive ingredients.
(Click Precautions and Warnings With Naltrexone for a more detailed look at contraindications for this product, including who may have an increased risk for problems while using it and those who should avoid naltrexone altogether.)
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