title: Prior exposure to footshock induced naloxone hyperalgesia.
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects; D004597:Electroshock; D005260:Female; D009270:Naloxone / Q000494:pharmacology*; D010146:Pain / Q000139:chemically induced*; D051381:Rats; D014828:Vocalization, Animal / Q000187:drug effects
chemical_list: D009270:Naloxone