title: Repeated administration of naltrexone produces tolerance to naloxone-induced hyperalgesia.
mesh_terms: D000818:Animals; D004361:Drug Tolerance; D008297:Male; D051379:Mice; D009270:Naloxone / Q000031:analogs & derivatives* / Q000494:pharmacology*; D009271:Naltrexone / Q000008:administration & dosage*; D010146:Pain / Q000188:drug therapy*
chemical_list: D009270:Naloxone; D009271:Naltrexone