Singulair 5 mg Chewable Tablets 28's is a leukotriene-receptor antagonist used in children for regular asthma control and prevention of exercise-induced airway narrowing; it does not treat an acute attack. Its confirmed composition is Each chewable tablet contains montelukast sodium equivalent to montelukast 5 mg; contains aspartame.

Children 6–14 years chew one 5 mg tablet once daily in the evening. When taken near food, give it at least one hour before or two hours after eating. Continue the regular reliever and inhaled controller plan; do not use this tablet for a sudden attack.

Headache or abdominal pain may occur. Stop and promptly seek assessment for mood or behaviour changes, nightmares, agitation, suicidal thoughts, allergic swelling or severe rash.