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.
  • 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.
  • In infants, dairy products and formula / feedings should be given at least one hour before or two hours after the dose if possible.  However, this medication should always be given at the same time around feedings.  You may want to discuss this topic with your child's doctor.  
  • Do not use after the expiration date on the bottle / package.
  • If too much medication is taken by accident, call the Drug and Poison Information Center (DPIC), 513-636-5111 or 1-800-222-1222.
  • 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.
  • 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 11/2013