Montelukast

Montelukast is a leukotriene receptor antagonist used to prevent asthma attacks and relieve symptoms of seasonal or year-round allergies. It helps by blocking chemicals that cause airway swelling and constriction. It is not intended for immediate relief of sudden asthma symptoms.

Usually taken once daily in the evening with or without food for asthma or allergy prevention. Swallow the tablet whole—do not chew or crush. Consistency in timing aids effectiveness.

Side effects may include headache, stomach pain, and fatigue. Mood changes or sleep disturbances can occur and should be reported to your doctor. Severe mood or behavior changes are rare but require immediate medical attention.

Yes, Montelukast is approved for children as young as 6 months (allergy) or 12 months (asthma), depending on formulation. Pediatric dosing is lower and should follow your child’s weight and age. Always consult a pediatrician before use.

Yes, it’s often used alongside inhalers, antihistamines, or nasal sprays. Always inform your provider of all medications to avoid interactions. No major drug interactions are typically seen, but monitoring efficacy is important.