title: Inhibition of writhing by narcotic antagonists.
mesh_terms: D000700:Analgesics / Q000494:pharmacology*; D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D003496:Cyclazocine / Q000494:pharmacology; D004336:Drug Antagonism; D008614:Meperidine / Q000494:pharmacology; D051379:Mice; D009019:Morphinans / Q000494:pharmacology; D009020:Morphine / Q000494:pharmacology*; D009269:Nalorphine / Q000494:pharmacology*; D009292:Narcotic Antagonists / Q000494:pharmacology*; D010423:Pentazocine / Q000494:pharmacology*; D011809:Quinones / Q000494:pharmacology; D012640:Seizures / Q000139:chemically induced*
chemical_list: D000700:Analgesics; D009019:Morphinans; D009292:Narcotic Antagonists; D011809:Quinones; D009020:Morphine; D008614:Meperidine; D003496:Cyclazocine; D010423:Pentazocine; D009269:Nalorphine