Dictionary

naltrexone

noun nal·trex·one \nal-ˈtrek-ˌsōn\

Definition of NALTREXONE

:  a synthetic opiate antagonist C20H23NO4 administered in the form of its hydrochloride
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Origin of NALTREXONE

N-allyl + trex- (as in methotrexate) + -one
First Known Use: 1973
Medical Dictionary

naltrexone

noun nal·trex·one \nal-ˈtrek-ˌsōn\

Medical Definition of NALTREXONE

:  a synthetic opiate antagonist administered especially in the form of its hydrochloride C20H23NO4·HCl to maintain a drug-free state in detoxified opiate-dependent patients or to maintain abstinence in alcohol-dependent patients

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