Beta2-selectivity of fenoterol. Comparison of intravenous and aerosol administration.

Aersol administration of fenoterol was compared with intravenous infusion in 30 patients who were undergoing induction of labour. In 11 cases, an increased uterine beta2-selectivity was demonstrated. This, apart from the ease of administration, makes aerosol the mode of administration of choice in some cases. Possible reasons for this are discussed.