Follow all directions on your prescription label and read all medication guides or instruction sheets. Use the medicine exactly as directed.
Montelukast is not a fast-acting rescue medicine for asthma attacks. Seek medical attention if your breathing problems get worse quickly, or if you think your medications are not working.
Montelukast is usually taken once every evening, with or without food.
For exercise-induced bronchoconstriction, take a single dose at least 2 hours before exercise, and do not take another dose for at least 24 hours.
Swallow the regular tablet whole, with a glass of water.
You must chew the chewable tablet before you swallow it.
Place the oral granules directly in your mouth and swallow, or mix them with applesauce, mashed carrots, rice, or ice cream. The granules may also be mixed with baby formula or breast milk. Do not use any other type of liquid. Use the mixture within 15 minutes. Do not save for later use.
If you also use an oral steroid medication, you should not stop using it suddenly. Follow your doctor's instructions about tapering your dose.
Do not change your dose or stop using asthma medication without your doctor's advice.
Store at room temperature away from moisture and heat. Do not open a packet of oral granules until you are ready to use the medicine.
 Detailed Montelukast dosage information
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What happens if I miss a dose?
Skip the missed dose and use your next dose at the regular time. Do not use two doses at one time.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
