title: Differential enhancement of narcotic discrimination and analgesia by amphetamine and haloperidol: an evidence for distinct mechanisms underlying analgesia and euphoria.
mesh_terms: D000698:Analgesia; D000818:Animals; D003913:Dextroamphetamine / Q000494:pharmacology*; D004192:Discrimination, Psychological; D004357:Drug Synergism; D005059:Euphoria / Q000187:drug effects*; D006220:Haloperidol / Q000494:pharmacology*; D008297:Male; D009020:Morphine / Q000494:pharmacology*; D051381:Rats; D011919:Rats, Inbred Strains
chemical_list: D009020:Morphine; D006220:Haloperidol; D003913:Dextroamphetamine