a white, crystalline, nonaddictive synthetic drug, CHNOHCl, that blocks or reverses the effects of alcohol or a narcotic
in full naltrexone hydrochloride
Origin of naltrexonefrom N-al(lyl) + -trex- ( from uncertain or unknown; perhaps ) + -one
A synthetic opioid antagonist, C20H23NO4, used in its hydrochloride form to treat addiction to alcohol and to opioid drugs such as heroin.
Origin of naltrexoneBlend of naloxone tre- (probably alteration of tri- from the three carbon atoms of the propyl group that distinguishes it from naloxone, of which it is a congener )