Narcotic cue and narcotic state.
D000700:Analgesics / Q000494:pharmacology; D000701:Analgesics, Opioid / Q000494:pharmacology*; D000930:Antidiarrheals; D003463:Cues; D004193:Discrimination Learning / Q000187:drug effects; D004298:Dopamine / Q000502:physiology; D004361:Drug Tolerance; D006801:Humans; D008297:Male; D018377:Neurotransmitter Agents / Q000502:physiology; D012701:Serotonin / Q000502:physiology; D019966:Substance-Related Disorders / Q000209:etiology
D000700:Analgesics; D000701:Analgesics, Opioid; D000930:Antidiarrheals; D018377:Neurotransmitter Agents; D012701:Serotonin; D004298:Dopamine