title: The effects of intravenous fentanyl, morphine and naloxone on nociceptive responses of neurones in the rat caudal medulla.
mesh_terms: D000818:Animals; D004558:Electric Stimulation; D004569:Electroencephalography; D005283:Fentanyl / Q000494:pharmacology*; D008297:Male; D008526:Medulla Oblongata / Q000166:cytology / Q000187:drug effects*; D009020:Morphine / Q000494:pharmacology*; D009270:Naloxone / Q000494:pharmacology*; D009474:Neurons / Q000187:drug effects*; D010146:Pain / Q000503:physiopathology*; D051381:Rats; D012154:Reticular Formation / Q000166:cytology / Q000187:drug effects; D013997:Time Factors
chemical_list: D009270:Naloxone; D009020:Morphine; D005283:Fentanyl