Delivery of albuterol aerosol by aerochamber to young children.

Inhalation of albuterol aerosol, 200 micrograms, delivered from metered dose inhalers via Aerochamber, elicited a highly significant improvement in peak expiratory flow rate from 70% to 84% and 91% predicted normal 5 and 20 minutes after treatment, respectively, in 30 asthmatic children 3 to 6 years of age. No significant increase in peak expiratory flow rate followed inhalation of placebo by a similar group of 16 asthmatic children. Use of the Aerochamber permits effective delivery of medication from metered dose inhalers to children as young as 3 years of age.