Patients w/ exacerbation of asthma after exercise should continue treatment of inhaled β-antagonist (as prophylaxis) & short-acting inhaled β-agonist (for rescue). Systemic eosinophilia may occur. Avoid abrupt substitution to inhaled or oral corticosteroids. Concomitant use w/ aspirin & NSAIDs in patients w/ known aspirin sensitivity. Not for treatment of acute asthma attacks. Pregnancy & lactation.