Health Guide
Drug Guide

Propafenone (By mouth)

Propafenone Hydrochloride (proe-PA-fen-one hye-droe-KLOR-ide)

Treats or prevents atrial fibrillation (heart rhythm problems or arrhythmias).

Brand Name(s):

Rythmol, Rythmol SR

There may be other brand names for this medicine.

When This Medicine Should Not Be Used:

Do not use this medicine if you have had an allergic reaction to propafenone. Your doctor will determine if this medicine is right for you, because this medicine should not be used if you have certain heart or heart rhythm problems, such as Brugada syndrome, heart failure, AV block, or sick sinus syndrome (unless you have an artificial pacemaker). Do not use this medicine if you have very low blood pressure, mineral imbalance (such as low salt levels in your blood), or lung disease (such as severe COPD).

How to Use This Medicine:

Long Acting Capsule, Tablet

If a dose is missed:

How to Store and Dispose of This Medicine:

Drugs and Foods to Avoid:

Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.

Warnings While Using This Medicine:

Possible Side Effects While Using This Medicine:

Call your doctor right away if you notice any of these side effects:

If you notice these less serious side effects, talk with your doctor:

If you notice other side effects that you think are caused by this medicine, tell your doctor

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088


Last Updated: 12/12/2016

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Thomson & A.D.A.M