A comparison of the onset of action of salbutamol and formoterol in reversing methacholine-induced bronchoconstriction.


This single-centre, randomized, double-blind, double-dummy four-way cross-over study in 24 moderately severe asthmatic patients compared the speed of onset of recommended doses of salbutamol (200 micrograms) and formoterol (12 micrograms) delivered by metered-dose inhaler in reversing the bronchoconstriction induced by a cumulative dose of methacholine to… (More)


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