Therapy

• pharmacological cardioversion 

Note:

• No one method of pharmacological cardioversion is definitively better than another - studies are small and have short follow-up, so some of the differences noted below may be due to chance.
• Adverse effects from anti-arrhythmic drugs are common and often lead to withdrawal or dose reduction. ^b
• Arrhythmias, particularly ventricular ones, are common. ^b The effects on mortality are unclear.