About montelukast sodium eq to montelukast
Leukotriene receptor antagonist
Used for
- Long-term asthma control and prevention
- Prevention of exercise-induced asthma symptoms
- Relief of seasonal or year-round allergic rhinitis
Usual adult dose
Asthma or allergic rhinitis: 10 mg by mouth once daily. Exercise prevention: 10 mg at least 2 hours before exercise.
Usual dose in children
Asthma or allergic rhinitis: ages 6–14, 5 mg once daily; ages 2–5, 4 mg once daily. Exercise prevention: ages 6–14, 5 mg at least 2 hours before exercise.
Common side effects
- Headache
- Abdominal pain or diarrhea
- Cough or upper respiratory symptoms
- Mood or behavior changes
Important warnings
- Not for sudden asthma attacks; use a rescue inhaler as prescribed.
- Serious mood, behavior, or suicidal thoughts have been reported; stop and seek medical assessment if these occur.
- For allergic rhinitis, reserve use for people who do not respond to or tolerate alternatives.
- Continue other prescribed asthma medicines unless the prescriber changes them.
Pregnancy
Human data have not identified a clear increase in birth-defect risk; use when clinically needed after discussing benefits and risks.
Breastfeeding
Montelukast enters milk in small amounts; available information suggests low risk, but discuss use with a clinician.
Interactions
- Phenobarbital, phenytoin, and rifampin may reduce montelukast levels.
- Gemfibrozil can increase montelukast exposure.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.