title: Analgesia following sulfapyridine administration in morphine-pretreated mice: a morphine "reservoir"?
mesh_terms: D000700:Analgesics; D000818:Animals; D001921:Brain / Q000378:metabolism; D004357:Drug Synergism; D008297:Male; D051379:Mice; D008810:Mice, Inbred C57BL; D009020:Morphine / Q000008:administration & dosage / Q000378:metabolism / Q000494:pharmacology*; D011725:Pyridines / Q000008:administration & dosage / Q000494:pharmacology; D013424:Sulfanilamides / Q000008:administration & dosage / Q000494:pharmacology*
chemical_list: D000700:Analgesics; D011725:Pyridines; D013424:Sulfanilamides; D009020:Morphine