acute effects of oral terbutaline ( 5 mg ) , ephedrine ( 25 mg ) and placebo on bronchial dynamics , heart rate , systolic and diastolic pressure and arterial blood gases at rest were compared over a period of 7 hours in 20 subjects with bronchial asthma using a double-blind crossover technique .
C0039542
terbutaline
C0004096
bronchial asthma