Flecainide (Tambocor)


Flecainide (Tambocor) is an antiarrhythmic used to treat certain heart conditions. It is used to treat and / or prevent abnormal or fast rhythms or beats of the heart.

This medication is available as a tablet, or your pharmacist may be able to make it a liquid.

  • Do not discontinue this medication without talking to your child's doctor.
  • Notify your child’s doctor of all medications and herbal remedies your child is currently taking.
  • Because flecainide may interact with other medications, tell the doctor or pharmacist about other prescription or over-the-counter (OTC) medications your child is taking.
  • This medication may be taken with or without food.
  • Do not use after the expiration date on the bottle / package.
  • If too much medication is taken by accident, first call 911, then call the hospital operator at 513-636-4200, or toll free at 1-800-344-2462.  Ask to speak to the cardiologist on call.
  • Keep this medication out of the reach of children.
  • Give a missed dose as soon as possible.
  • If it is almost time for the next dose, skip the missed dose and return to your child's regular schedule.
  • Do not give a double dose or extra doses.
  • Doses should not be given more often than every seven hours. 
  • Do not change dose or stop your child's medicine. Talk with healthcare provider.
  • Headache
  • Tiredness
  • Nervousness
  • Dizziness or lightheadedness
  • Nausea and / or vomiting
  • Diarrhea
  • Pale stools 
  • Chest pain or tightness
  • Palpitations or heart racing
  • Swelling in hand or feet
  • Dizziness or fainting
  • Severe headache
  • Severe diarrhea or vomiting
  • Rash
  • Yellowing of skin or eyes
  • Problems with vision
  • Shortness of breath

Last Updated 06/2015