Anatomical Therapeutic Chemical Classification System
Acamprosate has a chemical structure similar to that of amino acid neuromediators, such as taurine or gamma-amino-butyric acid (GABA), including an acetylation to permit passage across the blood brain barrier. Acamprosate may act by stimulating GABAergic inhibitory neurotransmission and antagonising excitatory amino-acids, particularly glutamate.
Disulfiram is an inhibitor of numerous enzymes. Disulfiram is used to support the treatment of chronic alcoholism.
Naltrexone is an orally used, long acting specific opioid antagonist. Naltrexone binds competitively to receptors which are located in the central and peripheral nervous system and hence blocks the access for exogenously administered opioids.