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Medication Detail

image of medication detailed on this page

Medication Type

Long Term Control, should be taken every day as prescribed

Generic Names


Brand Names



Montelukast comes in a variety of dosage forms and works over time by decreasing the body's response to allergens.


Oral tablet, oral chewable tablet, oral granules (sprinkles)


Adult dosing:
  • 10 mg tablet taken by mouth every evening.

Pediatric dosing:
  • Children ≥ 1 year to 5 years: 4 mg once every evening (oral granules or a chewable tablet)
  • Children ≥ 6 to 14 years of age: 5 mg (chewable tablet) once every evening
  • 15 years of age and older: 10 mg once every evening

Proper Use

  • See instructions for proper use.
  • Take every evening at the same time for best results.
  • Continue to take this medication even if you feel well.
  • Granules may be administered directly in the mouth or mixed with a teaspoon of applesauce, carrots, rice, ice cream, baby formula, or breast milk (do not add to any other liquids or foods); administer within 15 minutes of opening packet.
  • Chewable tablet should not be swallowed whole.


  • Do NOT use this drug to treat an asthma attack.
  • When using with inhaled corticosteroids (such as budesonide, fluticasone, flunisolide), the dose of the steroid may be decreased.
  • Montelukast should not be substituted for inhaled or oral steroids.

Common Interactions

No common interactions exist for this medication, but less common ones exist. Tell your doctor and pharmacist about all of your medications and health problems so they can check for any interactions.

Possible Side Effects

Possible side effects include headache, sore throat, upset stomach, runny nose, and dizziness.

Tell your doctor or seek medical attention in you notice any signs of an allergic reaction (rash, hives, wheezing, tightness in the chest or throat, trouble breathing or swelling of the face), fever, very bad stomach pain, or new feelings of depression or behavioral changes.

Proper Storage

  • Keep in original container.
  • Store at room temperature.
  • Protect from heat, light, and water.
  • Do not store in a bathroom.

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