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Name of the generic: Flecainide FLEK-a-nide
The class of drug: Group I antiarrhythmics

What is Tambocor?

Tambocor is a Class IC anti-arrhythmic that is employed in specific situations to avoid heart rhythm disorders. Tambocor could also be used to treat conditions that are not mentioned in this guide.

Side effects of Tambocor

Contact a medical professional immediately in the event that you exhibit symptoms that indicate an allergy, such as asthma, hives, or swelling of your lips, face, or tongue.

Tambocor could cause serious adverse reactions. Consult your physician immediately in the event that you experience:

  • Rapid heartbeats or fast beats;
  • The chest is fluttering, there is shortness of breath, and there is sudden dizziness (like you're about to pass out).
  • Slow heartbeat slow heart rate, weak pulse slow breathing (breathing could be stopped);
  • Being breathless;
  • Swelling and rapid weight gain
  • Pale skin, no bleeding or bruising, unusual fragility;
  • Fever, flu-like symptoms, or
  • Jaundice (yellowing of the eyes or skin).

Common adverse effects of Tambocor could include:

  • Dizziness;
  • Issues with vision;
  • Trouble breathing
  • Headache;
  • Nausea; or
  • Feeling tired or weak.

This isn't a complete list of possible side effects, and other side effects could occur. Consult your physician to seek medical advice on adverse effects. You can report any symptoms to the FDA at 1-800-FDA-1088.


It is not recommended to use Tambocor when you suffer from an extremely serious heart problem like branches of the bundle or AV block (without the use of a pacemaker) or if your heart is unable to pump blood efficiently.

Your first dose at the clinic or in a hospital setting in order to address any severe reactions.

Before taking this medication

Tambocor is not a good choice. Tambocor in case you are allergic to it, or:

  • You have a serious heart disease, like a bundle branch block, an AV block (unless you have a pacemaker), or
  • Your heart's blood supply isn't efficient.

Inform your doctor if you were ever diagnosed with:

  • A heart attack;
  • Persistent atrial fibrillation chronic atrial fibrillation, also known as afib;
  • Congestive heart failure;
  • A heart disease referred to as "sick sinus syndrome";
  • The imbalance of electrolytes (such as low concentrations of magnesium or potassium within your blood) or
  • The liver condition.

It isn't known if this medicine could cause harm to a baby who is not yet born. Inform your doctor if you are expecting or planning to be pregnant.

It is not recommended to breastfeed while taking this medication. Consult your physician regarding any risks.

How to take Tambocor?

Follow all the instructions on the prescription label and study all medication guides or instruction sheets. The doctor might alter your dosage. Follow the medication precisely as directed. It is possible to receive your first few doses at the clinic or in a hospital setting to treat any severe reactions. The heart rate of your patient will be recorded using an electrocardiograph, or ECG (sometimes known as the EKG). This will allow your doctor to determine the duration of treatment for your heart with Tambocor. It is also possible that you will require frequent blood tests to monitor the function of your kidneys or liver. Keep at room temperature, free of heat, moisture, and light.

What happens if I miss the dose?

Do not take the medicine for as long as you are able, but do not take your missed dose if you are close to the time of the next dose. Don't take two doses at a time.

What happens if I overdose?

Get medical attention in an emergency or contact the Poison Help line toll-free at 1-800-222-1222. Overdose symptoms may include nausea, vomiting, a slow heart rate, fainting, or seizures (convulsions).

What should be avoided?

Follow the instructions of your physician regarding any limitations on foods, drinks, or activities.

Interaction with other drugs

Inform your doctor about any other medications you take, particularly:

  • Digoxin;
  • A diuretic "water pill";
  • Beta-blocker (atenolol, metoprolol, propranolol, sotalol, and more);
  • Other heart medications like diopyramide, amiodarone, quinidine, nifedipine, or verapamil;
  • Seizure medication.

This list isn't complete. Other medications can influence Tambocor, which includes prescription and over-the-counter medicines, vitamins, and herbal products. Some interactions with drugs are not listed here. are listed here.





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