Gynaecology & Obstetrics General a5766730 For fetal lung maturation, all the corticosteroids can be used except: A Betamethasone B Dexamethasone C Hydrocortisone D Methylprednisolone High-Yield Explanation DOC for fetal lung maturation is betamethasone. Methylprodnisolone is not effective because of poor placental transfer.