Benzodiazepines and z-hypnotics are drugs mainly prescribed for the treatment of anxiety and insomnia.1 Up to 15% experience anxiety disorders during pregnancy, often comorbid with depression.2,3 The global prevalence of prescribed benzodiazepines and z-hypnotics during pregnancy is estimated at 1.9%.4 Maternal benzodiazepine or z-hypnotic use may have the potential to influence fetal neurodevelopment,5,6 but studies on child neurodevelopment after prenatal exposure to benzodiazepines and/or...