Inform your doctor of your allergies (food or drugs), medical conditions and medical history before taking this drug, especially of: liver disease, certain types of irregular heartbeat (second- or third-degree atrioventricular block or sick sinus syndrome, unless you have a heart pacemaker), certain heart problems (heart failure, slow heartbeat, QT prolongation in the EKG), family history of certain heart problems (QT prolongation in the EKG, sudden cardiac death). Other conditions that increase the risk of QT prolongation: Low levels of potassium or magnesium, diuretics, severe sweating, diarrhea, or vomiting. Talk to your doctor about using dronedarone safely.
Consult your doctor before having surgery or dental procedures.
For pregnant and nursing (breastfeeding) women, consult your doctor before using this medication.
Before using this drug, tell your doctor of the current medications, products (herbal/nonprescription) that you are taking especially of: fingolimod, amiodarone, disopyramide, dofetilide, flecainide, pimozide, procainamide, propafenone, quinidine, sotalol, azole antifungals (such as ketoconazole, itraconazole, voriconazole), cyclosporine, macrolide antibiotics (such as clarithromycin, erythromycin), nefazodone, HIV protease inhibitors (such as lopinavir, ritonavir), rifampin, St. John’s wort, drugs used to treat seizures (such as carbamazepine, phenobarbital, phenytoin), telithromycin, dabigatran, among others.