Liothyronine is the drug of choice in treatment of:: (A) Myxedema coma., (B) Cretinism, (C) Iodine deficiency Goiter., (D) Non resectable causes of papillary thyroid carcinoma.
Answer is A. Myxoedema coma is an emergency condition; hence faster acting T3 (Liothyronine) is preferred over thyroxine (T4). For the other indications thyroxine is preferred because of longer duration of action.