Montelukast
Brand: Singulair
Key warning
Boxed warning: serious neuropsychiatric events, including agitation and suicidal thinking
Common side effects
- Headache
- Stomach upset
- Cough
- Mood changes
- Fatigue
Key interactions & cautions
- Some seizure drugs may lower its levels
- Not for acute asthma attacks
- Few significant drug interactions
- Continue other asthma controllers as directed
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
High-yield study aid for exam prep — not a substitute for the package insert or a pharmacist’s dispensing reference.