Relief of acute bronchospasm Adult 100 or 200 mcg.
Childn 100 mcg, may be increased to 200 mcg if required.
Prevention of allergen- or exercise-induced bronchospasm Adult 200 mcg before challenge or exertion.
Childn 100 mcg before challenge or exertion, may be increased to 200 mcg if required.
Chronic therapy Adult & childn Up to 200 mcg 4 times daily.