Schedule-induced narcotic ingestion.
D000701:Analgesics, Opioid / Q000494:pharmacology; D000818:Animals; D001562:Benzimidazoles / Q000494:pharmacology; D003216:Conditioning, Operant / Q000187:drug effects; D004048:Diethylamines / Q000494:pharmacology; D005247:Feeding Behavior; D005502:Food; D006801:Humans; D008691:Methadone / Q000008:administration & dosage; D009020:Morphine / Q000008:administration & dosage; D009294:Narcotics / Q000008:administration & dosage*; D051381:Rats; D012055:Reinforcement Schedule; D012054:Reinforcement, Psychology; D012652:Self Mutilation / Q000139:chemically induced; D013997:Time Factors; D014868:Water Deprivation
D000701:Analgesics, Opioid; D001562:Benzimidazoles; D004048:Diethylamines; D009294:Narcotics; D009020:Morphine; D008691:Methadone