A comparison of inhaled fenoterol and albuterol in asthma.

In 24 adult asthmatics the effects of clinically recommended doses of fenoterol (320 micrograms) and albuterol (180 micrograms) were compared to placebo in a double-blind, crossover trial. Bronchodilation in FEV1 was significantly greater than placebo for both active drugs: two hours on albuterol and five hours on fenoterol. Results of FEF25-75% were similar. There were no significant changes in pulse rate, blood pressure and electrocardiogram, but 11 patients had mild subjective side-effects on fenoterol.