Which class does Dronedarone (Multaq) belong to?

Dronedarone (Multaq) is classified as a Class III antiarrhythmic medication. Class III agents primarily work by blocking potassium channels, which prolongs the action potential and refractory period in myocardial tissues. This action helps to stabilize cardiac rhythm and is particularly beneficial in managing conditions such as atrial fibrillation or atrial flutter. Dronedarone is known for its use in reducing the risk of cardiovascular hospitalization and managing arrhythmias, which aligns with the cardiac rhythm control goals associated with Class III drugs. Understanding this classification helps nurses and healthcare providers select appropriate treatments for patients with heart failure who also present with arrhythmias, ensuring they administer therapies that effectively address both rhythm and heart failure management.