Generic Name: dronedarone (droe NE da role)
Brand Names: Multaq

What is Multaq?

Multaq (dronedarone) is an antiarrhythmic medication that affects the rhythm of heartbeats.

Multaq helps keep the heart beating normally in people with life-threatening heart rhythm disorders of the atrium (the upper chambers of the heart that allow blood to flow into the heart) and risk factors such as diabetes, high blood pressure, a history of stroke, or being over 70 years old.

Multaq is used to treat certain heart rhythm disorders called atrial fibrillation or atrial flutter. Multaq is given to reduce the need for hospitalization due to these heart conditions.

Multaq may also be used for other purposes not listed in this medication guide.

Important information

Multaq is used to treat intermittent or "temporary" heart rhythm disorders. In some people with "permanent" atrial fibrillation, Multaq increased the risk of stroke, hospitalization due to heart failure, and death. Talk with your doctor about your individual risk.

Do not stop taking Multaq without first talking to your doctor. Stopping suddenly may make your condition worse.

You should not use Multaq if you are allergic to dronedarone, if you are pregnant or breast-feeding, or if you have severe liver disease, certain serious heart conditions, especially severe heart failure, "AV block" or sick sinus syndrome (unless you have a pacemaker), a history of slow heart beats that have caused you to faint, or if you were recently hospitalized for heart failure.

Slideshow: Atrial Fibrillation - Stroke Prevention Guidelines & Treatment Options

There are many other medicines that can cause serious medical problems if you take them together with Multaq. You may need to stop taking certain drugs while you are taking Multaq. Tell your doctor about all other medications you use.

Also tell your doctor if you have kidney disease, liver disease, a history of heart failure, an electrolyte imbalance (such as low levels of potassium or magnesium in your blood), or if you have a pacemaker or defibrillator implanted in your chest.

This medication can harm an unborn baby or cause birth defects. Do not use Multaq if you are pregnant. Use effective birth control, and tell your doctor right away if you become pregnant during treatment.

You may need regular medical tests to be sure Multaq is not causing harmful effects. Visit your doctor regularly.

Before taking this medicine

You should not use Multaq if you are allergic to dronedarone, or if you have:

  • severe liver disease;
  • certain serious heart conditions, especially severe heart failure, "AV block" or sick sinus syndrome (unless you have a pacemaker);

  • a history of slow heart beats that have caused you to faint;

  • if you were hospitalized with severe heart failure within the past 30 days; or

  • if you are pregnant or breast-feeding.

There are many other medicines that can cause serious medical problems if you take them together with Multaq. You may need to stop taking certain drugs while you are taking Multaq. Tell your doctor about all other medications you use, especially:

  • heart rhythm medication;

  • an antibiotic or antifungal medication;

  • an antidepressant;

  • medicine to treat HIV or AIDS;

  • medicine to treat or prevent malaria;

  • medicine to treat a psychiatric disorder;

  • migraine headache medication;

  • narcotic pain medicine;

  • medicine to prevent or treat nausea and vomiting; or

  • medicine used to prevent organ transplant rejection.

If you have any of these other conditions, you may need a dose adjustment or special tests to safely take Multaq:

  • kidney disease;

  • liver disease;

  • a history of heart failure;

  • an electrolyte imbalance (such as low levels of potassium or magnesium in your blood); or

  • if you have a pacemaker or defibrillator implanted in your chest.

FDA pregnancy category X. Multaq can harm an unborn baby or cause birth defects. Do not use this medicine if you are pregnant. Tell your doctor right away if you become pregnant during treatment. Use effective birth control while you are using this medication. It is not known whether dronedarone passes into breast milk or if it could harm a nursing baby. Do not use Multaq if you are breast-feeding a baby.

See also: Pregnancy and breastfeeding warnings (in more detail)

How should I take Multaq?

Take Multaq exactly as prescribed by your doctor. Do not take in larger or smaller amounts or for longer than recommended. Follow the directions on your prescription label.

Take this medicine with a full glass of water. Multaq works best if you take it with your morning and evening meals.

Use Multaq regularly even if you feel fine or have no symptoms. Get your prescription refilled before you run out of medicine completely.

To be sure Multaq is not causing harmful effects, your heart function will need to be checked every 3 months using an electrocardiograph or ECG (sometimes called an EKG). An ECG measures electrical activity of the heart. This will help your doctor determine how long to treat you with Multaq. Your liver and kidney function may also need to be tested. Visit your doctor regularly.

Do not stop taking this medication without first talking to your doctor.

Store Multaq at room temperature away from heat and moisture.

What happens if I miss a dose?

Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. Overdose symptoms may include weakness, slow heart rate, feeling light-headed, or fainting.

What should I avoid?

Grapefruit and grapefruit juice may interact with Multaq and lead to potentially dangerous effects. Discuss the use of grapefruit products with your doctor.

Multaq side effects

Get emergency medical help if you have any of these signs of an allergic reaction to Multaq: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Call your doctor at once if you have a serious side effect such as:

  • severe dizziness, fainting, fast or pounding heartbeats;

  • slow heart rate, feeling like you might pass out;

  • a new or a worsening irregular heartbeat pattern;

  • feeling short of breath, even with mild exertion, swelling in your ankles or feet, rapid weight gain;

  • wheezing, cough, chest pain, trouble breathing, coughing up mucus;

  • nausea, upper stomach pain, itching, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes);

  • breathing problems while lying down trying to sleep; or

  • low electrolytes (confusion, jerky muscle movements, uneven heartbeats, extreme thirst, increased urination, leg discomfort, muscle weakness or limp feeling).

Less serious Multaq side effects may include:

  • mild stomach pain, diarrhea, upset stomach;

  • feeling weak or tired; or

  • mild skin rash or redness.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

See also: Side effects (in more detail)

What other drugs will affect Multaq?

Many drugs can interact with Multaq and some should not be used at the same time. Below is only a partial list of these drugs. Tell your doctor if you are using:

  • cyclosporine (Gengraf, Neoral, Sandimmune);

  • dexamethasone (Cortastat, Dexasone, Solurex, DexPak);

  • medication for treating tuberculosis;

  • cyclosporine (Gengraf, Neoral, Sandimmune), sirolimus (Rapamune) or tacrolimus (Prograf);

  • St. John's wort;

  • theophylline (Elixophyllin, Theo-24, Uniphyl);

  • an antibiotic such as clarithromycin (Biaxin), erythromycin (E.E.S., EryPed, Ery-Tab, Erythrocin, Pediazole), levofloxacin (Levaquin), moxifloxacin (Avelox), pentamidine (NebuPent, Pentam), rifabutin (Mycobutin), rifampin (Rifadin, Rifater, Rifamate), rifapentine (Priftin), or telithromycin (Ketek);

  • antifungal medication such as itraconazole (Sporanox), ketoconazole (Nizoral), miconazole (Oravig), posaconazole (Noxafil), or voriconazole (Vfend);

  • an antidepressant such as amitriptylline (Elavil, Vanatrip, Limbitrol), clomipramine (Anafranil), desipramine (Norpramin), or nefazodone;

  • anti-malaria medications such as chloroquine (Aralen) or mefloquine (Lariam);

  • a barbiturate such as butabarbital (Butisol), secobarbital (Seconal), pentobarbital (Nembutal), or phenobarbital (Solfoton);

  • a beta-blocker such as atenolol (Tenormin), bisoprolol (Zebeta, Ziac), metoprolol (Lopressor, Toprol), propranolol (Inderal, InnoPran), and others;

  • cholesterol-lowering medicines such as cholestyramine (Prevalite, Questran), atorvastatin (Lipitor), simvastatin (Zocor), lovastatin (Mevacor), pravastatin (Pravachol), or fluvastatin (Lescol);

  • heart or blood pressure medication such as amlodipine (Norvasc), digoxin (digitalis, Lanoxin, Lanoxicaps), diltiazem (Cardizem, Dilacor, Tiazac), felodipine (Plendil), nifedipine (Procardia, Adalat), verapamil (Calan, Covera, Isoptin, Verelan), and others; or

  • heart rhythm medicine such as amiodarone (Cordarone, Pacerone), dofetilide (Tikosyn), disopyramide (Norpace), dronedarone (Multaq), ibutilide (Corvert), nicardipine (Cardene), procainamide (Procan, Pronestyl), propafenone (Rythmol), quinidine (Quin-G), or sotalol (Betapace);

  • medicine to prevent blood clots, such as warfarin (Coumadin, Jantoven) or dabigatran (Pradaxa);

  • medicine to prevent or treat nausea and vomiting such as dolasetron (Anzemet), droperidol (Inapsine), or ondansetron (Zofran);

  • medicine to treat HIV, AIDS, or hepatitis C;

  • medicines to treat psychiatric disorders, such as chlorpromazine (Thorazine), clozapine (FazaClo, Clozaril), haloperidol (Haldol), pimozide (Orap), thioridazine (Mellaril), or ziprasidone (Geodon);

  • migraine headache medicine such as sumatriptan (Imitrex, Treximet) or zolmitriptan (Zomig);

  • narcotic medication such as methadone (Methadose, Diskets, Dolophine); or

  • seizure medication such as carbamazepine (Carbatrol, Equetro, Tegretol), phenytoin (Dilantin), and others.

This list is not complete and there are many other medicines that can cause serious drug interactions with Multaq. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor. Keep a list with you of all the medicines you use and show this list to any doctor or other healthcare provider who treats you.

Where can I get more information?

  • Your pharmacist can provide more information about Multaq.
  • Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects.

Copyright 1996-2014 Cerner Multum, Inc. Version: 10.01. Revision Date: 2012-04-04, 11:47:03 AM.

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