Nisentil in 1,000 obstetric cases.
D000522:Alphaprodine; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D010880:Piperidines; D011247:Pregnancy
D010880:Piperidines; D000522:Alphaprodine; C032727:piperidine
LABOR; PIPERIDINE AND COMPOUNDS