Encainide and moricizine are very rarely used. Class III drugs block cardiac potassium channels and prolong repolarization. [Mahajan A, et al. Antiarrhythmic Drugs. 2011;5b] Class III drugs are ...

Crude and adjusted fracture risk was significantly raised by a diagnosis of atrial fibrillation (30% and 14% rise), and by amiodarone therapy (80% and 47% rise). Although the crude fracture risk ...