title: Drug combinations in pleasure and pain.
mesh_terms: D000818:Animals; D001362:Avoidance Learning / Q000187:drug effects*; D001921:Brain / Q000187:drug effects*; D003216:Conditioning, Operant; D003913:Dextroamphetamine / Q000494:pharmacology; D004347:Drug Interactions; D008297:Male; D009020:Morphine / Q000494:pharmacology; D010423:Pentazocine / Q000494:pharmacology; D011619:Psychotropic Drugs / Q000494:pharmacology*; D051381:Rats; D012201:Reward; D012653:Self Stimulation / Q000187:drug effects*; D014309:Tripelennamine / Q000494:pharmacology
chemical_list: D011619:Psychotropic Drugs; D014309:Tripelennamine; D009020:Morphine; D010423:Pentazocine; D003913:Dextroamphetamine