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naltrexone
(redirected from Vivitrol)

    Also found in: Wikipedia 0.04 sec.
naltrexone /nal·trex·one/ (nal-trek´sōn) an opioid antagonist used as the hydrochloride salt in treatment of opioid or alcohol abuse.
nal·trex·one (nl-trksn)
n.
An endorphin and narcotic antagonist. It is devoid of pharmacologic action when administered in the absence of narcotics.
naltrexone (nal·trekˑ·sōn),
n a pharmacologic substance that increases the body's production of endorphins; used in treating narcotic addiction.
naltrexone
an opiate antagonist similar to naloxone but with longer action and greater potency.
naltrexone
Substance abuse An opioid antagonist used to manage opiate, alcohol and other abuse substances; naltrexone binds to endorphin receptors, preventing endophin receptor binding, reducing the craving for abuse substances. See Cocaine. Cf Antabuse.


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