This site has information intended for people who have been prescribed MULTAQ as well as for their caregivers.
For U.S. Residents Only
Man's upper body Important Safety Information

Keep the Following Important Safety Information About MULTAQ In Mind

Who should not take MULTAQ?

Do not take MULTAQ if you have severe heart failure or if you have been in the hospital recently for heart failure, even if you are better now. People with severe heart failure who take MULTAQ have an increased chance of dying.

When should I call the doctor?

Call your doctor immediately if you’re taking MULTAQ and you feel the symptoms of worsening heart failure, which may include:

Shortness of breath or wheezing at rest
Wheezing, chest tightness, or coughing up frothy sputum at rest, nighttime, or after minor exercise
Trouble sleeping or waking up at night because of breathing problems
Using more pillows to prop yourself up at night so you can breathe more easily
Gaining more than 5 pounds quickly
Increased swelling of feet or legs

Who else shouldn't take MULTAQ?

You should not take MULTAQ if you have severe liver problems. You should not take MULTAQ if you are breastfeeding, pregnant, or plan to become pregnant as it is not known if it may pass to or harm your baby.

Is it OK to take water pills while on MULTAQ?

Your potassium levels should be within the normal range prior to and while taking MULTAQ. Tell your doctor about any diuretic medications (”water pills”) you are taking as some can lower the level of potassium or magnesium in your blood.

Will I need any tests while I’m on MULTAQ?

Your doctor may perform certain tests, such as heart exams and blood tests, while you're taking MULTAQ.

Are there any medications I should avoid while taking MULTAQ?

MULTAQ can interact with certain medications and herbal supplements. Do not use the following medications with MULTAQ:

Nefazodone
Ritonavir
Ketoconazole
Itraconazole
Voriconazole
Telithromycin
Clarithromycin
Cyclosporine

Are there other medicines that would be harmful when taken with MULTAQ?

The following medicines can lead to be a dangerous abnormal heart rhythm if taken with MULTAQ:

Phenothiazines
Tricyclic antidepressants
Certain medicines used to treat an abnormal heart rhythm or fast heartbeat
Certain antibiotics

Please read the Medication Guide and tell your doctor about all medications you take to help avoid serious drug interactions. Do not drink grapefruit juice while taking MULTAQ.

What are the most common side effects?

The most common side effects when taking MULTAQ are diarrhea, nausea, stomach pain, skin rash, and slowed heartbeat.


Remember, your doctor is the single best source of information regarding your health.
Please consult your doctor if you have any questions about your health or your medicine.


Remember, your doctor is the single best source of information regarding your health.
Please consult your doctor if you have any questions about your health or your medicine.

MULTAQ is a prescription medicine used to lower the chance you would need to go into the hospital for heart problems. It is meant for people who have had an abnormal heart rhythm called atrial fibrillation (AFib) or atrial flutter (AFlutter) in the last 6 months, but who may currently have a regular heart rhythm or will have medical treatment to return to a regular rhythm. MULTAQ may be safely used by people who have had AFib and AFlutter who also have other conditions such as high blood pressure, stroke, or diabetes.