Montelukast: Side Effects, Uses & Monitoring
1.1 Asthma Montelukast sodium tablets are indicated for the prophylaxis and chronic treatment of asthma in adults and pediatric patients 15 years of age and older.
- Data source
- FDA labeling via NIH DailyMed (label f3bdf2a3…)
- Label version
- current
- Last reviewed
- 2026
Reported adverse reactions
Reactions listed in current FDA labeling, with the highest frequency reported across summarized placebo-controlled trials.
No structured frequency data available in current labeling. Consult the official label.
Labeled uses (from FDA prescribing information)
1.1 Asthma Montelukast sodium tablets are indicated for the prophylaxis and chronic treatment of asthma in adults and pediatric patients 15 years of age and older. 1.2 Exercise-Induced Bronchoconstriction (EIB) Montelukast sodium tablets are indicated for prevention of exercise-induced bronchoconstriction (EIB) in patients 15 years of age and older. 1.3 Allergic Rhinitis tablets are indicated for the relief of symptoms of seasonal allergic rhinitis in patients 15 years of age and older and perennial allergic rhinitis in patients of age and older. Because the benefits of montelukast sodium tablets may not outweigh the risk of neuropsychiatric symptoms in patients with reserve use for patients who have an inadequate response or intolerance to alternative therapies. Montelukast sodium tablets are indicated for the relief of symptoms of seasonal allergic rhinitis in patients 15 years of age and older and perennial allergic rhinitis in patients 15 years of age and older. Because the benefits of montelukast sodium tablets may not outweigh the risk of neuropsychiatric symptoms in patients with allergic rhinitis [see warnings and precautions (5.1)], reserve use for patients who have an ina…
Conditions associated with Montelukast in labeling
Frequently Asked Questions
What is Montelukast used for?
FDA labeling lists the approved uses shown above under "Labeled uses." This summary is informational; only a qualified prescriber can determine whether a medication is appropriate for you.
What are the most commonly reported side effects of Montelukast?
Current labeling for this ingredient does not include a structured frequency table that we can reproduce. Review the official label linked below.
Does Montelukast require lab monitoring?
Monitoring needs vary. Ask your healthcare provider whether any lab tests apply while taking Montelukast.
Where does this information come from?
All clinical facts on this page were extracted from the current FDA-registered product labeling for this ingredient, published by manufacturers through NIH DailyMed. See the source link below.
Medical disclaimer: Educational content extracted from public FDA labeling. Not medical advice. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.