Montelukast belongs to a class of medications called leukotriene receptor blockers. It blocks the action of leukotrienes and hence reduces swelling and narrowing of the airways. Montelukast can be used to prevent asthma attacks and relieve the symptoms of seasonal allergic rhinitis in patients with asthma like sneezing, runny nose and itchiness.
Montelukast is available in regular tablets (for adults), and in chewable tablets or granules (for children). It can be taken with or without food. The oral granules can be placed directly into your child’s mouth or mixed with a spoonful of cold or room temperature food (only applesauce, carrots, rice, or ice cream should be used), breast milk, or baby formula. They should be taken within 15 minutes of mixing.
The oral dosages for different uses and age groups are listed below:
For prevention of asthma attacks
Adult / child 15-17 years
10 mg once daily in the evening.
Child 6 months – 5 years
4 mg once daily in the evening.
Child 6-14 years
5 mg once daily in the evening.
For relieving the symptoms of allergic rhinitis
Adult / Child 15 years or above
10 mg once daily in the evening.
There are few common side effects of Montelukast. Rare side effects include dyspepsia, allergic reactions, and muscle weakness.
Common dosing schedule:
Montelukast can be taken with or without food.
Take the drug in the evening for asthma prevention.
This schedule is for reference only, adjustments may be made according to individual needs.
Some common medications Montelukast may interact with:
Please notify your doctor or pharmacist if you are taking the above medication, dosage adjustments might be needed.
In Hong Kong, Montelukast is a prescription only medicine, and requires a prescription from a doctor to be purchased in a pharmacy. It can also be obtained from doctors. To find a pharmacy near you, refer to the list of pharmacies (“Authorized Sellers of Poisons”) from the Hong Kong Department of Health.
For more information about drug names and ingredients, you can visit Hong Kong’s Drug Office at https://www.drugoffice.gov.hk
Need more information?
For detailed information about the use of Montelukast in children, pregnancy and breastfeeding, and for questions about drug interactions, please check with your pharmacist or doctor.
Disclaimer: our goal is to provide you with the most relevant drug information and common dosage for Hong Kong. This information does not constitute medical advice. For specific treatment recommendations and advice, always discuss with your doctor or pharmacist, and follow the instructions included with your specific medicine.
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