Montelukast
Brand: Singulair
Boxed warning
Serious neuropsychiatric events including agitation, depression, sleep disturbance, and suicidal thoughts; reserve for allergic rhinitis only when other treatments fail.
- Caution
- Not for acute asthma attacks.
Common side effects
- Headache
- Stomach upset
- Cough
- Mood changes
- Fatigue
Key interactions
- Some seizure drugs may lower its levels
- Phenobarbital and rifampin may lower its levels
Counseling points
- Take in the evening
- Not for sudden asthma attacks
- Keep a rescue inhaler available
- Report mood or behavior changes
- Take daily even when feeling well
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