title: Narcotic antagonists and their uses in obstetrics.
mesh_terms: D004347:Drug Interactions; D005260:Female; D006801:Humans; D007743:Labor, Obstetric / Q000187:drug effects; D007977:Levallorphan; D009020:Morphine; D009269:Nalorphine; D009270:Naloxone; D009292:Narcotic Antagonists; D009774:Obstetrics; D010423:Pentazocine; D011247:Pregnancy
chemical_list: D009292:Narcotic Antagonists; D007977:Levallorphan; D009270:Naloxone; D009020:Morphine; D010423:Pentazocine; D009269:Nalorphine