naltrexone
nal·trex·one
noun \nal-ˈtrek-ˌsōn\Definition of NALTREXONE
: a synthetic opiate antagonist C20H23NO4 administered in the form of its hydrochloride
Origin of NALTREXONE
N-allyl + trex- (as in methotrexate) + -one
First Known Use: 1973
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