title: Multiple opiate receptors: emerging concepts.
mesh_terms: D000701:Analgesics, Opioid / Q000378:metabolism; D000818:Animals; D001519:Behavior; D001667:Binding, Competitive; D001921:Brain / Q000378:metabolism*; D003496:Cyclazocine / Q000031:analogs & derivatives / Q000378:metabolism; D016314:Ethylketocyclazocine; D007700:Kinetics; D010620:Phenazocine / Q000031:analogs & derivatives / Q000378:metabolism; D051381:Rats; D011957:Receptors, Opioid / Q000502:physiology*; D013329:Structure-Activity Relationship
chemical_list: D000701:Analgesics, Opioid; D011957:Receptors, Opioid; D016314:Ethylketocyclazocine; C012134:SK&F 10047; D010620:Phenazocine; D003496:Cyclazocine