A comparison between aerosol and inhaled powder administration of fenoterol in adult asthmatics.

Eleven adult asthmatics were given fenoterol either as a metered aerosol dose or as an inhaled powder with appropriate controls, in a randomised double-blind fashion. The increase in FEV1 was the same after both dosage forms and no side effects occurred indicating that powder inhalation is a safe and effective alternative to aerosol inhalation in the treatment of asthma with sympathomimetics.