On the central sites for the antinociceptive action of morphine and fentanyl.
D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects*; D001665:Binding Sites; D002247:Carbon Isotopes; D002552:Cerebral Ventricles / Q000187:drug effects*; D003782:Dental Pulp / Q000502:physiology; D004027:Diencephalon / Q000187:drug effects; D004558:Electric Stimulation; D005260:Female; D005283:Fentanyl / Q000494:pharmacology*; D007275:Injections, Intravenous; D007278:Injections, Spinal; D008297:Male; D008636:Mesencephalon / Q000187:drug effects; D009020:Morphine / Q000494:pharmacology*; D010146:Pain; D011817:Rabbits; D012018:Reflex / Q000187:drug effects
D002247:Carbon Isotopes; D009020:Morphine; D005283:Fentanyl