How the FDA determines the "safety" of drugs: are drugs used in obstetrics really safe?
D004341:Drug Evaluation / Q000592:standards*; D004348:Drug Labeling; D005260:Female; D006801:Humans; D007743:Labor, Obstetric / Q000187:drug effects*; D007880:Legislation, Drug; D011247:Pregnancy / Q000187:drug effects*; D014481:United States; D014486:United States Food and Drug Administration