Pediatric Medication

Brand Names: US


Brand Names: Canada

ACH-Montelukast; Apo-Montelukast; Auro-Montelukast; Auro-Montelukast Chewable Tablets; Dom-Montelukast; Dom-Montelukast FC; Jamp-Montelukast; Mar-Montelukast; Mint-Montelukast; Montelukast Sodium Tablets; Mylan-Montelukast; PMS-Montelukast; PMS-Montelukast FC; RAN-Montelukast; Riva-Montelukast FC; Sandoz-Montelukast; Sandoz-Montelukast Granules; Singulair; Teva-Montelukast

What is this drug used for?

  • It is used to ease allergy signs.
  • This drug is used to prevent exercise-induced breathing problems.
  • It is used to treat or prevent asthma.
  • It may be given to your child for other reasons. Talk with the doctor.

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.
This drug may interact with other drugs or health problems.
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?

All products:

  • Tell dentists, surgeons, and other doctors that your child is using this drug.
  • 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.
  • Call the doctor right away if your child’s normal dose does not work as well or if your child needs to use the rescue inhaler more often.
  • This drug is not helpful during an asthma attack.
  • Do not give this drug to treat an asthma attack. Use a rescue inhaler. Talk with the doctor.
  • Do not give this drug to stop exercise-induced breathing problems if your child is already taking it for asthma or allergy.
  • If your child has asthma and taking aspirin makes it worse, make sure your child avoids aspirin and NSAIDs while your child takes this drug.

If your child is pregnant or breast-feeding a baby:

  • Talk with the doctor if your child is pregnant, becomes pregnant, or is breast-feeding a baby. You will need to talk about the benefits and risks of using this drug.

Chewable tablet:

  • If your child has PKU, talk with your child’s doctor. Some products have phenylalanine.

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:
  • 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.
  • Signs of liver problems like dark urine, feeling tired, not hungry, upset stomach or stomach pain, light-colored stools, throwing up, or yellow skin or eyes.
  • Signs of a pancreas problem (pancreatitis) like very bad stomach pain, very bad back pain, or very bad upset stomach or throwing up.
  • If your child shows signs of low mood (depression), thoughts of killing him/herself, nervousness, emotional ups and downs, thinking that is not normal, anxiety, or lack of interest in life.
  • Hallucinations.
  • Change in the way your child acts.
  • Memory problems or loss.
  • Trouble breathing that is new or worse.
  • Fever.
  • Flu-like signs.
  • Seizures.
  • A heartbeat that does not feel normal.
  • Chest pain.
  • Change in thinking clearly and with logic.
  • A burning, numbness, or tingling feeling that is not normal.
  • Any bruising or bleeding.
  • Ear pain.
  • Shakiness.
  • Not able to sleep.

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:
  • Belly pain.
  • Headache.
  • Loose stools (diarrhea).
  • Cough.
  • Sore throat.
  • Stuffy nose.
  • Runny nose.
  • 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?

Give this drug as ordered by your child’s doctor. Read all information given to you. Follow all instructions closely.

All products:

  • Give this drug with or without food.
  • Give even during sign-free periods.
  • If working out or playing sports causes your child signs, give at least 2 hours before your child does it.
  • If this drug is for asthma, give in the evening.
  • If this drug is for allergies, give at the same time of day.
  • Give as you have been told, even if your child feels well.
  • To gain the most benefit, do not miss giving your child doses.

Chewable tablet:

  • Have your child chew all the way up before swallowing.
  • Granules may be taken by mouth or mixed with applesauce, baby formula, breast milk, carrots, rice, or ice cream. Do not mix granules in other liquids.
  • After mixing, give your child’s dose right away. Do not store for future use.

What do I do if my child misses a dose?

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

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

All products:

  • Store in the original container at room temperature.
  • Protect from light.
  • Store in a dry place. Do not store in a bathroom.
  • 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.


  • Use granules right after opening.

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, 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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©2015 Memorial Sloan Kettering Cancer Center - Generated on November 26, 2015