Prophylaxis to Reduce Postoperative Atrial Fibrillation in Cardiac Surgery

metoprolol 25mg by mouth every 6 hours

amiodarone 600mg by mouth evening before surgery amiodarone 600mg by mouth morning of surgery amiodarone 400mg by mouth every 12 hours for 3 days postoperatively

ascorbic acid 2,000mg by mouth evening before surgery ascorbic acid 2,000mg by mouth morning of surgery ascorbic acid 1,000mg by mouth every 12 hours for 5 postoperative days