Add-on therapy in patients w/ mild to moderate persistent asthma who are inadequately controlled on inhaled corticosteroids & in whom "as-needed" short-acting β-agonists provide inadequate clinical control of asthma. Symptomatic relief of seasonal allergic rhinitis. Prophylaxis of exercise-induced asthma.
Not to be used in acute asthma attacks. Not to be abruptly substituted for inhaled or oral corticosteroids. Systemic eosinophilia may present during therapy. Patients w/ aspirin-sensitive asthma. Rare cases of drowsiness or dizziness which may affect ability to drive a car or operate machinery. Severe hepatic impairment. Pregnancy & lactation. Not to be used in childn <15 yr.