Levalbuterol is typically administered via inhalation using a nebulizer or a metered-dose inhaler (MDI). The dosage and frequency depend on the severity of the condition and the age of the child. For instance, children aged 6-11 years may use a nebulized solution of 0.31 mg three times a day, while those 12 years and older might use 0.63 mg three times a day.