a white, crystalline, nonaddictive synthetic drug, CHNOHCl, that blocks or reverses the effects of alcohol or a narcotic
in full naltrexone hydrochloride
Origin of naltrexone; from N-al(lyl) + -trex- (; from uncertain or unknown; perhaps ) + -one
A drug that is an endorphin and narcotic antagonist, C20H23NO4, used also in its hydrochloride form to treat alcohol and drug addiction. It is devoid of pharmacologic action when administered in the absence of narcotics.
Origin of naltrexoneBlend of naloxone and 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).