Does 80 mg of sotalol twice a day help prevent Atrial Fibrillation ? I've had one per year over the past five years while on that dosage. Since I've been taken off the sotalol by a new cardiologist, I've had one AF episode every month for the last 3 months. Should I restart the intake of the sotalol? I'm really pissed off at my new cardiologist. Can you help me?