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[Ultrasonic spray protection against bronchospasm. Comparison of fenoterol and a combination of salbutamol and ipratropium bromide].

Nine patients with clinically stable bronchial asthma who had received no drug treatment in the preceding 48 hours were examined. The patients were subjected to 5 minutes ultrasound spray after the double blind administration of either fenoterol or salbutamol + ipratropium bromide. Respiratory function was assessed before and 30, 60 and 90 minutes after cessation of the stimulation. The results showed no significant difference in the protection against the ultrasound spray provided by fenoterol and the combination of salbutamol + ipratropium bromide.