Dronedarone — Uses, Dosage, Side Effects & Safety

Drug class: Antiarrhythmic (Class III)

Overview

Dronedarone is a prescription medication used to help control abnormal heart rhythms, specifically in adults with a history of non-permanent atrial fibrillation (AF) or atrial flutter. It works by stabilizing the electrical activity in the heart, helping to maintain a normal, steady heartbeat. Dronedarone is not intended for use in people with permanent atrial fibrillation or those with severe heart failure. It is usually prescribed when other treatments have not worked or are not suitable. Patients should be aware that regular monitoring is needed while taking this medication, as it can affect the liver, lungs, and heart.

Therapeutic uses

  • Atrial fibrillation
  • Atrial flutter

For related Dronedarone guidance, compare Amiodarone and Stroke: A Comprehensive Guide to Symptoms, Causes, and Treatment.

Common side effects

  • Diarrhea
  • Nausea
  • Abdominal pain
  • Bradycardia
  • QT prolongation
  • Liver injury
  • Heart failure exacerbation

Frequently Asked Questions about Dronedarone

What is dronedarone used for?

Dronedarone is used to help maintain a normal heart rhythm in adults with a history of non-permanent atrial fibrillation or atrial flutter.

How does dronedarone work?

Dronedarone works by blocking certain electrical signals in the heart that can cause irregular heartbeats, helping to restore and maintain a normal rhythm.

Can I take dronedarone if I have heart failure?

No, dronedarone should not be used in people with severe heart failure or recent episodes of decompensated heart failure, as it can worsen the condition.

What should I do if I miss a dose?

Take the missed dose as soon as you remember, unless it is close to your next scheduled dose. Do not take two doses at once.

Are there foods or drinks I should avoid?

Yes, avoid grapefruit and grapefruit juice, as they can increase the risk of side effects by raising dronedarone levels in your body.

What are the signs of serious side effects?

Serious side effects include shortness of breath, swelling, yellowing of the skin or eyes, severe fatigue, or irregular heartbeat. Seek medical help if these occur.

Can I stop dronedarone suddenly?

Do not stop taking dronedarone without talking to your doctor, as stopping suddenly may worsen your heart rhythm problems.

Educational information only. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.