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Quantity: 60
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Formulation : Tablet
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Tambocor is an anti-arrhythmic medication used to prevent heart rhythm disorders.

Flecainide is a benzamide monoacetate that offers anesthetic properties and promotes a decrease in intracardiac conduction. The drug belongs to the membrane stabilizing class of antiarrhythmic drugs meaning that it supports the stabilization of electrical impulses in your cardiovascular system. These actions allow Tambocor to prevent serious heart rhythm disorders in individuals with heart conditions.

Dosage and Administration

The dose of Tambocor that is prescribed will vary depending on the individual and severity of the heart condition being treated. Follow all directions provided by your healthcare provider and read packaging labels carefully to ensure the best therapeutic results during treatment. Do not change your dose on your own.

  • Swallow tablet whole
  • Take your dose before or after meals
  • Your first few doses may be provided in a hospital or clinic setting for immediate treatment for any serious side effects that you have
  • Most adults start by taking 50 to 100mg of Tambocor once every 12 hours
  • Your dose may increase up to a maximum of 300mg each day
  • Some patients may be prescribed up to 400mg daily if needed
  • Do not suddenly stop using Tambocor
  • Store at room temperature away from children and pets

Side Effects

Tambocor may cause some side effects to develop. Speak with your healthcare provider if you have any questions regarding any symptoms that you may encounter during treatment.

Common Tambocor side effects:

  • Dizziness
  • Vision problems
  • Trouble breathing
  • Headache
  • Nausea
  • Weakness, tiredness

Serious Side Effects

Some more serious side effects may occur during treatment with Tambocor. Contact your healthcare provider right away if you notice any of the following symptoms:

  • Fast or pounding heartbeats
  • Fluttering in your chest, shortness of breath
  • Sudden dizziness, feeling faint
  • Slow heart rate, weak pulse, slow breathing that may stop
  • Swelling, rapid weight gain
  • Pale skin, easy bruising or bleeding
  • Unusual weakness
  • Fever, flu symptoms
  • jaundice

Allergic Reactions

Do not take Tambocor if you are allergic to flecainide or any of the other tablet ingredients. Stop using this medication and call your healthcare provider if you develop signs of an allergic reaction.

Tambocor allergy symptoms may include:

  • Hives
  • Difficulty breathing
  • Swelling of face, lips, tongue, or throat


Do not take Tambocor if you have any of the following conditions:

  • Second- or third-degree AV block
  • Right bundle branch block that is associated with a left hemiblock unless you have a pacemaker
  • Cardiogenic shock
  • If your heart cannot properly pump blood

Do not suddenly stop taking Tambocor or change your dose without talking with your healthcare provider first.

To ensure your safety when taking Tambocor, tell your healthcare provider if you have ever had any of the following:

  • Heart attack
  • Chronic atrial fibrillation
  • Congestive heart failure
  • Heart condition called sick sinus syndrome
  • Electrolyte imbalance
  • Liver disease
  • Kidney problems

Avoid driving or operating machinery until you know how this medication will affect you. Tambocor may cause you to become dizzy which can impair your thinking and reactions.

Tell your healthcare provider if you are pregnant or plan to become pregnant during treatment with Tambocor. It is unclear whether this heart medication will affect your unborn child.

Ask your healthcare provider about the risks and benefits of breastfeeding while taking Tambocor.

Some drugs may interact with Tambocor and cause adverse reactions. Tell your healthcare provider about all the medications you take, including over the counter medicines, but especially any of the following:

  • Digoxin
  • Propranolol
  • Enzyme inducers (phenytoin, phenobarbital, carbamazepine)
  • Stomach ulcer medication like cimetidine
  • Diuretic medication
  • Beta-blocker
  • Quinidine
  • Other heart medications (amiodarone, diltiazem, disopyramide, nifedipine, and others)
  • Seizure medication

Tambocor is not an approved form of treatment for children.

Form and Strength

This antiarrhythmic medication is available in tablet form.

Tambocor tablet strengths:

  • 50mg
  • 100mg

The 50 and 100mg strength Tambocor tablets are both available in quantities of 120 while the 50mg tablets are also available in quantities of 60.


What to avoid when taking Tambocor?

You should avoid driving or performing any hazardous tasks until you know how Tambocor affects you. The medication may make you dizzy which can impair your reactions and make it unsafe to drive. During treatment you should also avoid taking certain medications, especially other heart medications, without first speaking with your healthcare provider.

Does Tambocor have to be taken 12 hours apart?

Yes, it is recommended that you take your doses of Tambocor every 12 hours. This is to help ensure that you maintain a constant concentration of the medication in your blood for the best antiarrhythmic results during treatment. You can take your doses with or without food at times that are most convenient for you, but you should try to take your doses at the same time each day.



Additional information

Brand Name:


Scientific Name:


Other Names:

Flecainide, Tambocor


50mg, 100mg

Quantities Available:

60, 120