Montelukast
System: AllopathyClass: Leukotriene Receptor AntagonistComposition: Montelukast SodiumPrescription: Prescription OnlyEssential medicine (NLEM): No
Montelukast is a once-daily tablet that helps prevent asthma attacks and allergic rhinitis symptoms.
Common brands
- Montair
- Romilast
- Montek-LC (with levocetirizine)
Dosage forms
- Tablet
- Chewable tablet
- Granules
Uses
- Asthma prevention
- Allergic rhinitis
- Exercise-induced bronchospasm
How it works
Blocks leukotrienes, which narrow and inflame airways.
How to take
Once daily in the evening; not for an acute asthma attack.
Common side effects
- Headache
- Stomach upset
Serious side effects — get medical help
- Mood changes, nightmares, depression or suicidal thoughts - report promptly
Who should not take it
- Allergy to montelukast
Interactions
- Phenobarbital and rifampicin may lower levels
Pregnancy & breastfeeding
Use if prescribed.
Alcohol & driving
No specific restriction.
Storage
Store below 30°C, away from light.
Used for these conditions
Prescribed by
Brands available in India
Frequently asked questions
What is Montelukast used for?
Asthma prevention, Allergic rhinitis, Exercise-induced bronchospasm
What are the side effects of Montelukast?
Headache, Stomach upset
How should I take Montelukast?
Once daily in the evening; not for an acute asthma attack.
Who should not take Montelukast?
Allergy to montelukast
Medically reviewed by
Medical review pending
Last updated
9 October 2026
Sources
- National List of Essential Medicines (NLEM) 2022, MoHFW
- National Formulary of India, Indian Pharmacopoeia Commission
- CDSCO approved drug information
This information is for general awareness and does not replace advice from a qualified doctor. Do not start, stop or change any medicine without medical advice.