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Flecainide (fle KAY nide)

Adult Medication

Brand Names: U.S.

Tambocor [DSC]

Brand Names: Canada

Apo-Flecainide®; Tambocor™

Warning

  • This drug is only to be used to treat life-threatening abnormal heartbeats. It may cause very bad and sometimes deadly side effects. Talk with the doctor.
  • Other types of abnormal heartbeats have happened with this drug in some people. Sometimes, this has been deadly. Do not take this drug if you have a certain type of abnormal heartbeat called chronic atrial fibrillation. Talk with your doctor.

What is this drug used for?

  • It is used to treat heartbeats that are not normal.

What do I need to tell my doctor BEFORE I take this drug?

  • If you have an allergy to flecainide or any other part of this drug.
  • If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
  • If you have any of these health problems: Heart block without a working pacemaker, heart failure, a long QT on ECG, or low blood pressure.
  • If you have any of these health problems: Low potassium or magnesium levels.
This is not a list of all drugs or health problems that interact with this drug.
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take this drug with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.

What are some things I need to know or do while I take this drug?

  • Tell dentists, surgeons, and other doctors that you use this drug.
  • Avoid driving and doing other tasks or actions that call for you to be alert until you see how this drug affects you.
  • To lower the chance of feeling dizzy or passing out, rise slowly over a few minutes when sitting or lying down. Be careful climbing stairs.
  • Have your blood work checked often. Talk with your doctor.
  • If you have a pacemaker, talk with your doctor.
  • In children with certain heart problems, heart attack and sudden death have happened with this drug. Talk with the doctor.
  • This drug may need to be started in a hospital where you will be closely watched. Talk with your doctor.
  • Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using this drug while you are pregnant.
  • Tell your doctor if you are breast-feeding. You will need to talk about any risks to your baby.

What are some side effects that I need to call my doctor about right away?

WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
  • Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
  • Signs of liver problems like dark urine, feeling tired, not hungry, upset stomach or stomach pain, light-colored stools, throwing up, or yellow skin or eyes.
  • Chest pain or pressure.
  • Very bad dizziness or passing out.
  • A new or worse heartbeat that does not feel normal.
  • Fast or slow heartbeat.
  • Shortness of breath, a big weight gain, swelling in the arms or legs.
  • Shakiness.
  • Change in eyesight.
  • Any bruising or bleeding.

What are some other side effects of this drug?

All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
  • Headache.
  • Dizziness.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to your national health agency.

How is this drug best taken?

Use this drug as ordered by your doctor. Read and follow the dosing on the label closely.
  • Take with or without food.
  • Take as you have been told, even if you feel well.
  • To gain the most benefit, do not miss doses.

What do I do if I miss a dose?

  • Take a missed dose as soon as you think about it.
  • If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
  • Do not take 2 doses at the same time or extra doses.

How do I store and/or throw out this drug?

  • Store at room temperature.
  • Protect from light.
  • Store in a dry place. Do not store in a bathroom.
  • Keep all drugs out of the reach of children and pets.
  • Check with your pharmacist about how to throw out unused drugs.

General drug facts

  • If your symptoms or health problems do not get better or if they become worse, call your doctor.
  • Do not share your drugs with others and do not take anyone else’s drugs.
  • Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
  • Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
  • Some drugs may have another patient information leaflet. If you have any questions about this drug, please talk with your doctor, pharmacist, or other health care provider.
  • If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.

Consumer Information Use and Disclaimer

This information should not be used to decide whether or not to take this medicine or any other medicine. Only the healthcare provider has the knowledge and training to decide which medicines are right for a specific patient. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about this medicine. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not specific medical advice and does not replace information you receive from the healthcare provider. You must talk with the healthcare provider for complete information about the risks and benefits of using this medicine.

Last Reviewed Date

2014-10-28

Copyright

Copyright © 2014 Clinical Drug Information, LLC and Lexi-Comp, Inc.