As a type of antiarrhythmic medication, Tambocor can help prevent certain types of irregular heartbeats. This prescription medication works to stabilize the heart rhythm by slowing down the electrical impulses in the heart. It comes as a tablet that is usually taken every 8 or 12 hours. It is available in brand-name and generic forms. Side effects may include dizziness, headaches, and vision problems.

What Is Tambocor?

Tambocor™ (flecainide acetate) is a prescription medication approved to prevent certain types of irregular heartbeats (also called arrhythmias). It belongs to a group of medications known as antiarrhythmics.
(Click Tambocor Uses for more information on this topic, including possible off-label uses.)

Who Makes This Medication?

Tambocor is made by 3M Drug Delivery Systems for Medicis.

How Does Tambocor Work?

Tambocor belongs to a group of medications known as Class I antiarrhythmics. Class I antiarrhythmic medications block sodium channels in the heart. This slows down the speed at which electrical impulses move through the heart, which helps stabilize the heart rhythm.

When and How to Take It

Some general considerations to keep in mind during treatment with Tambocor include the following:
  • This medication comes in the form of a tablet. It is usually taken by mouth every 12 hours, although some people may need to take it every 8 hours.
  • You may need to start taking this medication in the hospital, where your healthcare provider can closely monitor your heart rhythm.
  • You can take Tambocor with or without food. Try taking it with food if it seems to bother your stomach.
  • Try to take your doses at the same time each day to keep an even level of the drug in your bloodstream.
  • For the medication to work properly, it must be taken as prescribed.
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Tambocor Drug Information

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