title: DMSO (dimethyl sulfoxide), morphine and analgesia.
mesh_terms: D000284:Administration, Oral; D000287:Administration, Topical; D000700:Analgesics; D000818:Animals; D004121:Dimethyl Sulfoxide / Q000008:administration & dosage / Q000494:pharmacology*; D007275:Injections, Intravenous; D008297:Male; D009020:Morphine / Q000494:pharmacology*; D009270:Naloxone / Q000494:pharmacology; D051381:Rats; D013997:Time Factors
chemical_list: D000700:Analgesics; D009270:Naloxone; D009020:Morphine; D004121:Dimethyl Sulfoxide