Quinidine (Qualaquin) belongs to a class of medications known as antiarrhythmics which are used to treat certain heart conditions. This medication is used to treat and / or prevent abnormal rhythms or beats of the heart. It can also be used to treat malaria. It may be given as a tablet, sustained release tablet, by injection, or your pharmacist may be able to make a liquid.

  • Do not discontinue this medication without talking to your child's doctor.
  • Because quinidine may interact with other medications, tell the doctor or pharmacist all other medications your child is taking, prescription and over-the-counter (OTC).
  • This medication should be given to your child on an empty stomach (1 hour before to 2 hours after a meal). If stomach upset occurs, call your child's doctor.
  • Avoid giving grapefruit or grapefruit juice to your child while they take this medication.
  • Do not crush or chew long-acting tablets -- have your child swallow them whole (unless the doctor tells you to cut them in half).
  • Do not use after the expiration date on the bottle / package.
  • If too much medicine is taken by accident, call the Drug and Poison Information Center (DPIC) at 513-636-5111, or 1-800-222-1222, or call your child's doctor.
  • Store medicine at room temperature. Do not store it in the bathroom.
  • Keep this medication out of the reach of children.

For any medication information related to your child's dosing schedule and / or missed doses, contact the healthcare provider who prescribed the medication.

  • Irregular heart beat
  • Flushing
  • Headache
  • Nausea or vomiting
  • Diarrhea
  • Muscle aches
  • Irregular heart beat
  • Dizziness or fainting
  • Fever
  • Rash
  • Vomiting
  • Diarrhea
  • Ringing in ears or difficulty hearing
  • Problems with vision
  • Unusual bleeding

Last Updated 12/2013