Digoxin (Lanoxin)

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Digoxin (dih JOX inn) or Lanoxin® (lan-OX-in) is a medicine that makes the heart work more efficiently. Digoxin slows down a rapid heart rate, improves the pumping action of the heart and regulates an irregular heart rate. Lanoxin is a light green liquid. (Most children think this medicine tastes good, so be sure to store it out of the reach of children.) Digoxin is also available in tablets for older children.

Doctor's Order

Child's name: _______________________________________ Date: ___________________

Age: __________________       Weight: __________________  

Your child's dose is ________ mg.

If your child takes pills, this dose is ______tablet(s).

If your child takes liquid medicine, this dose is________________.

Give a dose ______time(s) a day at the following time(s) ________am ________pm.


  • Digoxin is usually given 12 hours apart, twice a day (once in the morning and once
    in the evening). Remember to always give it at the same time each day.
  • Always use the marked dropper or oral syringe so that the exact dose is given.
  • Always give the exact dose as ordered - never give more or less.
  • Stay with your child until he or she has swallowed the dose of medicine.
  • Never stop giving the medicine without talking with your child's doctor first.
  • If your child has trouble taking medicine, ask your child’s nurse for Helping Hand HH-IV-28, Medications: How to Give by Mouth.


  • Read the label each time before you give your child this medicine.
  • If the medicine is a liquid, use the oral syringe to measure the exact dose. Do not measure liquid medicines in kitchen spoons.

Food and Drug Interactions

This medicine should be given on an empty stomach (before eating). Avoid giving with foods high in fiber.

Make sure your child gets enough potassium in his or her diet (bananas, orange juice). If the amount of potassium in your child’s body is too low, he or she may be more likely to develop side effects.

If you have any questions about this, please tell the nursing staff and they can contact a pharmacist or nutritionist.

If You Forget to Give a Dose

If you forget to give a dose, you may give it up to 2 hours later. If it has been more than 2 hours, do not give that dose. Wait and give the next dose at the next regularly scheduled time.

DO NOT GIVE EXTRA DOSES or try to catch up.

If a Dose Is Vomited

If your child vomits after taking the medicine, do not repeat the dose. Give the normal dose at the next regularly scheduled time.

Possible Side Effects

  • Nausea
  • Sensitivity to light
  • Vomiting
  • Older children may complain of vision problems
  • Loss of appetite, without any reason
  • Acting irritable (grouchy) without any reason

When to Call the Doctor

Call your child's doctor if any of the following occurs:

  • Nausea and vomiting that continues for more than 24 hours.
  • Your child has any of the side effects.
  • If your child takes or is given more digoxin than was ordered, immediately call your doctor or go to your nearest emergency room. Bring all your remaining medicines with you.

Storage of Medication

Store your medicine outside of a child's reach

  • Store all medicine out of the reach of children.  
  • Look for the expiration date which is printed on the container. Do not use this medicine after that date.
  • Always keep medicine in the original container from the pharmacy.

Safety Tips and Other Information

  • This medicine is very important for your child's heart. Do not stop giving this medicine and do not change the amount given without first talking with your child's doctor.
  • The doctor has prescribed this medicine for your child only. Do not give it to anyone else.
  • Get this prescription refilled at least 2 days before the last dose is given. This is very important.
  • Tell your child's teacher, school nurse, coach, baby-sitter and others your child is taking this medicine and what side effects to watch for.
  • Bring all your child's medicines with you (in the original containers) whenever your child sees a doctor, goes to an emergency room or is admitted to the hospital. This helps doctors who may not know your child.
  • When it is no longer needed, dissolve the leftover medicine in water or rubbing alcohol. Mix the dissolved medication with an unwanted material like coffee grounds and place the mixture back in the pill container or in another container that will not leak. Throw the container away in the trash where children and pets cannot reach it.

Follow-Up Appointments

  • Blood may need to be drawn from time to time to check the digoxin level in the blood.
  • Write down all of your questions as you think of them. Bring this list with you when you see the doctor.
  • Be sure to call the doctor’s office if you cannot keep the appointment.

If you have any questions be sure to ask your child’s doctor, nurse or pharmacist, or call the Cardiology Department at (phone) ___________________________________________________________.

Digoxin (Lanoxin) (PDF)

HH-V-21 10/79 Revised 5/16 Copyright 1979, Nationwide Children’s Hospital