Pediatric Medication

Brand Names: US

Betapace; Betapace AF; Sorine; Sotylize

Brand Names: Canada

Apo-Sotalol; CO Sotalol; Dom-Sotalol; Med-Sotalol; Mylan-Sotalol; Novo-Sotalol; Nu-Sotalol; PHL-Sotalol; PMS-Sotalol; PRO-Sotalol; ratio-Sotalol; Rhoxal-sotalol; Riva-Sotalol; Rylosol; Sandoz-Sotalol; ZYM-Sotalol


All products:

  • This drug may cause a life-threatening type of heartbeat that is not normal (prolonged QT interval). Talk with the doctor if your child has a long QT on ECG.
  • Your child will have to start and restart this drug in a setting where your child’s heart can be watched nonstop. Talk with the doctor.
  • If your child has kidney disease, talk with the doctor.

All oral products:

  • Do not change from one form of this drug to another without talking with the doctor.

What is this drug used for?

  • It is used to treat certain types of life-threatening abnormal heartbeats.
  • It is used to keep a normal heartbeat in people who have a certain type of abnormal heartbeat (atrial fibrillation or atrial flutter).

What do I need to tell the doctor BEFORE my child takes this drug?

  • If your child has an allergy to this drug or any part of this drug.
  • If your child is allergic to any drugs like this one or any other drugs, foods, or other substances. Tell the doctor about the allergy and what signs your child had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
  • If your child has any of these health problems: Asthma or other lung or breathing problems that cause shortness of breath or wheezing, heart failure (weak heart), certain types of abnormal heartbeats called heart block or sick sinus syndrome, or a slow heartbeat.
  • If your child has any of these health problems: Low potassium or magnesium levels.
  • If your child is taking any drugs used for a heartbeat that is not normal.
  • If your child is taking any drugs that can cause a certain type of heartbeat that is not normal (prolonged QT interval). There are many drugs that can do this. Ask the doctor or pharmacist if you are not sure.

If your child is breast-feeding a baby:

  • Be sure your child does not breast-feed a baby while taking this drug.
This is not a list of all drugs or health problems that interact with this drug.
Tell the doctor and pharmacist about all of your child’s drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for your child to take this drug with all of his/her drugs and health problems. Do not start, stop, or change the dose of any drug your child takes without checking with the doctor.

What are some things I need to know or do while my child takes this drug?

  • Tell all of your child’s health care providers that your child is taking this drug. This includes your child’s doctors, nurses, pharmacists, and dentists.
  • Have your child avoid tasks or actions that call for alertness until you see how this drug affects your child. These are things like riding a bike, playing sports, or using items such as scissors, lawnmowers, electric scooters, toy cars, or motorized vehicles.
  • To lower the chance of feeling dizzy or passing out, have your child get up slowly over a few minutes when sitting or lying down. Have your child be extra careful climbing stairs.
  • Have your child’s blood pressure and heart rate checked often. Talk with your child’s doctor.
  • Have your child’s blood work checked often. Talk with your child’s doctor.
  • Your child will need an ECG before starting this drug and during treatment. Talk with the doctor.
  • This drug may affect certain lab tests. Tell all of your child’s health care providers and lab workers that your child takes this drug.
  • This drug may hide the signs of low blood sugar. Talk with the doctor.
  • If your child has high blood sugar (diabetes), you will need to watch his/her blood sugar closely.
  • Tell the doctor if your child has too much sweat, fluid loss, loose stools (diarrhea), or more thirst; is throwing up; or is not hungry.
  • Do not stop giving this drug to your child all of a sudden. If you do, chest pain that is worse and in some cases heart attack may occur. The chance may be higher if your child has certain types of heart disease. To avoid side effects, you will want to slowly stop this drug as ordered by the doctor. Call the doctor right away if your child has new or worse chest pain or if other heart problems happen.
  • This drug may make it harder to tell if your child has signs of an overactive thyroid like fast heartbeat. If your child has an overactive thyroid and stops taking this drug all of a sudden, it may get worse and could be life-threatening. Talk with the doctor.
  • If your child has had a very bad allergic reaction, talk with the doctor. Your child may have a chance of an even worse reaction if your child comes into contact with what caused the allergy. If your child uses epinephrine to treat very bad allergic reactions, talk with the doctor. Epinephrine may not work as well while your child is taking this drug.
  • The chance of side effects may be higher in female patients. Talk with the doctor.

If your child is pregnant:

  • Tell the doctor if your child is pregnant or becomes pregnant. You will need to talk about the benefits and risks of your child using this drug while pregnant.

What are some side effects that I need to call my child’s 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 child’s doctor or get medical help right away if your child has any of the following signs or symptoms that may be related to a very bad side effect:

All products:

  • 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.
  • Very bad dizziness or passing out.
  • Chest pain or pressure.
  • Fast or slow heartbeat.
  • A new or worse heartbeat that does not feel normal.
  • Feeling very tired or weak.
  • Shortness of breath, a big weight gain, swelling in the arms or legs.
  • Sweating a lot.
  • Change in eyesight.


  • Pain where the shot was given.
  • Irritation or swelling where the shot was given.

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 child’s doctor or get medical help if any of these side effects or any other side effects bother your child or do not go away:
  • Dizziness.
  • Headache.
  • Loose stools (diarrhea).
  • Upset stomach or throwing up.
  • Feeling tired or weak.
These are not all of the side effects that may occur. If you have questions about side effects, call your child’s doctor. Call your child’s doctor for medical advice about side effects.
You may report side effects to your national health agency.

How is this drug best given?

All oral products:

  • Give this drug with or without food.
  • To gain the most benefit, do not miss giving your child doses.
  • Give this drug at the same time of day.
  • Keep giving this drug to your child as you have been told by your child’s doctor or other health care provider, even if your child feels well.


  • A liquid (suspension) can be made if your child cannot swallow pills. Talk with your child’s doctor or pharmacist.
  • If a liquid (suspension) is made, shake well before use.

All liquid products:

  • Measure liquid doses carefully. Use the measuring device that comes with this drug. If there is none, ask the pharmacist for a device to measure this drug.


  • It is given as an infusion into a vein over a period of time.

What do I do if my child misses a dose?

All oral products:

  • Skip the missed dose and go back to your child’s normal time.
  • Do not give 2 doses or extra doses.


  • Call your child’s doctor to find out what to do.

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

All oral products:

  • Store at room temperature.
  • Store in a dry place. Do not store in a bathroom.


  • If a liquid (suspension) is made from the tablets, store at room temperature. Throw away any part not used after 3 months.


  • If you need to store this drug at home, talk with your child’s doctor, nurse, or pharmacist about how to store it.

All products:

  • Keep all drugs in a safe place. 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 child’s symptoms or health problems do not get better or if they become worse, call your child’s doctor.
  • Do not share your child’s drug with others and do not give anyone else’s drug to your child.
  • Keep a list of all your child’s drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your child’s doctor.
  • Talk with your child’s doctor before giving your child 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 child’s doctor, nurse, 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



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