Increased pethidine dosage in obstetrics associated with the use of nalorphine.
D000698:Analgesia; D000758:Anesthesia; D000760:Anesthesia and Analgesia; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D008614:Meperidine; D009269:Nalorphine; D009774:Obstetrics; D059408:Pain Management; D011247:Pregnancy
D008614:Meperidine; D009269:Nalorphine
LABOR/anesthesia and analgesia; MEPERIDINE/anesthesia and analgesia; NALORPHINE