[Antispasmodics administered intravenously to primiparas at the onset of labor. (Further contribution to directed labor)].
D000758:Anesthesia; D000773:Anesthesia, Obstetrical; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D009125:Muscle Relaxants, Central / Q000628:therapy*; D010276:Parasympatholytics; D011247:Pregnancy
D009125:Muscle Relaxants, Central; D010276:Parasympatholytics
ANESTHESIA, OBSTETRICAL; MUSCLE RELAXANTS/therapy