Pharmacology General ca6a367a All of following inhibit peripheral conversion of T4 and T3 except - A Propylthiouracil B Methimazole C Proparanolal D Amiodarone High-Yield Explanation Ans is 'b' i.e. Methimazole o Propylthiouracil, propranolal, amiodarone and glucocoicoids inhibit peripheral conversion of T4 and T3.