Definitions for naltrexonenælˈtrɛk soʊn

This page provides all possible meanings and translations of the word naltrexone

Princeton's WordNetRate this definition:(0.00 / 0 votes)

  1. naltrexone(noun)

    an oral antagonist against the action of opiates

WiktionaryRate this definition:(0.00 / 0 votes)

  1. naltrexone(Noun)

    An opiate antagonist used to treat opioid dependence

FreebaseRate this definition:(0.00 / 0 votes)

  1. Naltrexone

    Naltrexone is an opioid receptor antagonist used primarily in the management of alcohol dependence and opioid dependence. It is marketed in generic form as its hydrochloride salt, naltrexone hydrochloride, and marketed under the trade names Revia and Depade. In some countries including the United States, a once-monthly extended-release injectable formulation is marketed under the trade name Vivitrol. Also in the US, Methylnaltrexone Bromide, a closely related drug, is marketed as Relistor, for the treatment of opioid induced constipation. Naltrexone should not be confused with naloxone nor nalorphine. Using naloxone in place of naltrexone can cause acute opioid withdrawal symptoms; conversely, using naltrexone in place of naloxone in an overdose can lead to insufficient opioid antagonism and fail to reverse the overdose.

U.S. National Library of MedicineRate this definition:(0.00 / 0 votes)

  1. Naltrexone

    Derivative of noroxymorphone that is the N-cyclopropylmethyl congener of NALOXONE. It is a narcotic antagonist that is effective orally, longer lasting and more potent than naloxone, and has been proposed for the treatment of heroin addiction. The FDA has approved naltrexone for the treatment of alcohol dependence.


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