title: An animal model for opiate induced euphoria and analgesia.
mesh_terms: D000701:Analgesics, Opioid / Q000494:pharmacology*; D000818:Animals; D001921:Brain / Q000187:drug effects; D004195:Disease Models, Animal; D004361:Drug Tolerance; D004569:Electroencephalography; D005059:Euphoria / Q000187:drug effects*; D009020:Morphine / Q000494:pharmacology; D009294:Narcotics / Q000008:administration & dosage / Q000494:pharmacology*; D051381:Rats
chemical_list: D000701:Analgesics, Opioid; D009294:Narcotics; D009020:Morphine