<prompt> Antiarrhythmic drug causing hypothyroidism is: E. REPEAT 2007LidocainePropanololAmiodaroneProcainamide  <response>: Ref: Drug-Induced Diseases: Prevention, Detection and Management, James E. Tisdale, 2nd edition, Page 587Explanation:Amiodarone causes both Hypo and Hyperthyroidism.DRUGS CAUSING HYPOTHYROIDISMEthionamide.Amiodarone.Nitroprusside.Perchlorate.Povidone iodine Betadine.Sulfonylureas.INF alpha.Lithium.Octreotide.Rifampin.Aldesleukin.Thalildomide.Leuprolide.DRUGS CAUSING HYPERTHYROIDISMAmiodarone.Cyclosporine.INF alpha.INF beta.lodinated compounds.Lenalidomide.Leuprolide.Lithium. 