Used to treat certain types of irregular heart rhythms, specifically to reduce the risk of hospitalization due to atrial fibrillation or atrial flutter in patients with a history of these conditions. It helps maintain normal heart rhythm and is typically prescribed when other antiarrhythmic drugs are not suitable. Dronedarone is not intended for use in patients with severe heart failure or those who have recently decompensated heart failure. It is often part of a broader cardiovascular management plan to improve quality of life and reduce complications related to rhythm disorders.