Written & medically reviewed by Dr. Sanjay Anbu, MBBS· Last reviewed
Montelukast is a daily preventer for asthma and allergic rhinitis. It reduces airway inflammation but is not a reliever — it does not treat a sudden asthma attack.
Not for a sudden attack — keep your reliever inhaler
Often taken in the evening
Watch for mood or behaviour changes
When to see a doctor urgently
Mental-health changes — agitation, low mood, unusual thoughts — tell your doctor promptly
A severe asthma attack needs your reliever and urgent care
Doses are a general reference, not a prescription. Doses shown are typical adult/paediatric references and vary with age, weight, kidney/liver function and the exact product. Paediatric doses are usually weight-based and must be set by a doctor. MedDroid cannot prescribe — always confirm montelukast and your dose with a doctor or pharmacist and the leaflet inside the pack.
Frequently asked questions
Is montelukast a steroid?
No — it is a leukotriene receptor antagonist, a different anti-inflammatory taken as a tablet.
Does montelukast affect mood?
Some people notice sleep, mood or behaviour changes. These are recognised, so report anything unusual.
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.