Multaq, with the active ingredient dronedarone, is a prescription medication primarily used in the management of certain types of irregular heartbeat, particularly atrial fibrillation and atrial flutter in patients. It belongs to a class of drugs known as antiarrhythmics, which work by helping to restore the heart's normal rhythm and maintain it over time. Multaq is specifically designed for patients whose hearts have not been permanently in atrial fibrillation, aiming to reduce the risk of hospitalization due to these heart conditions. It is important for patients to follow their healthcare provider's instructions closely when taking Multaq, as it can have significant interactions with other medications and may not be suitable for everyone, especially those with severe heart failure or liver problems.