title: Modification of morphine analgesia by drugs affecting adrenergic and tryptaminergic mechanisms.
mesh_terms: D000698:Analgesia; D000818:Animals; D005260:Female; D006358:Hot Temperature; D008297:Male; D008781:Methyltyrosines / Q000494:pharmacology; D008784:Methysergide / Q000494:pharmacology; D051379:Mice; D009020:Morphine / Q000037:antagonists & inhibitors*; D010646:Phentolamine / Q000494:pharmacology; D010649:Phenylalanine / Q000494:pharmacology*; D011433:Propranolol / Q000494:pharmacology; D012110:Reserpine / Q000494:pharmacology*; D012701:Serotonin / Q000494:pharmacology; D013035:Spasm / Q000139:chemically induced
chemical_list: D008781:Methyltyrosines; D012701:Serotonin; D010649:Phenylalanine; D009020:Morphine; D012110:Reserpine; D011433:Propranolol; D008784:Methysergide; D010646:Phentolamine