title: Antagonism by phenoxybenzamine of the analgesic effect of morphine injected into the nucleus reticularis gigantocellularis of the rat.
mesh_terms: D000818:Animals; D007267:Injections; D008297:Male; D008526:Medulla Oblongata / Q000187:drug effects*; D008784:Methysergide / Q000494:pharmacology; D009020:Morphine / Q000008:administration & dosage / Q000037:antagonists & inhibitors*; D010643:Phenoxybenzamine / Q000494:pharmacology*; D011433:Propranolol / Q000494:pharmacology; D051381:Rats; D013997:Time Factors
chemical_list: D010643:Phenoxybenzamine; D009020:Morphine; D011433:Propranolol; D008784:Methysergide