Fenoterol inhalation powder and aerosol.

The effect of 0.2 mg of fenoterol inhalation powder and 0.2 mg fenoterol from a metered dose inhaler were compared in a double-dummy, cross-over investigation. Ten patients with chronic obstructive lung disease entered the study, which showed no statistically significant difference between the effect of these two forms of the drug on lung function and pulse rate for a period of up to 6 hours after the inhalation of fenoterol. The patients considered the inhalation of powder by means of a commercial inhaler, the Ingelheim inhaler, was simple.