PLE-4125

A 20-year-old G1P0 at 40 weeks AOG came to your hospital. She denied having any prenatal check-up. She subsequently gave birth to a baby boy. Upon delivery, you noted that the baby had an upturned nose, mild midfacial hypoplasia, a long upper lip with a thin vermilion border, and distal digital hypoplasia. What medication could the mother have been taking during her pregnancy?