title: [Blockade of morphine analgesia by intracerebroventricular or subarachnoid injections of cholecystokinin in rats].
mesh_terms: D000698:Analgesia; D000818:Animals; D005260:Female; D007276:Injections, Intraventricular; D007278:Injections, Spinal; D008297:Male; D009020:Morphine / Q000037:antagonists & inhibitors*; D010146:Pain / Q000503:physiopathology; D051381:Rats; D012684:Sensory Thresholds / Q000187:drug effects; D012844:Sincalide / Q000494:pharmacology*
chemical_list: D009020:Morphine; D012844:Sincalide