Long-term regularly inhaled salbutamol

SummarySeventeen asthmatic patients were allocated at random to one of two treatment regimens: prophylactic (10 patients), in which salbutamol inhaler was used regularly in a dose of 200 µg 4-times daily; or symptomatic (7 patients), in which a placebo inhaler was used regularly as 2 actuations 4-times daily. In both regimens, an ‘escape’ salbutamol inhaler was given to be used for symptomatic relief if and when needed. The study lasted 12 months, after a run-in period of 1 month to accustom patients to the trial procedure. At the end of the year, 16 patients transferred to the alternative regimen for a further 3 months. Both groups were well matched except that the group starting with the prophylactic regimen had more severe airways obstruction than the symptomatic group. Patients were assessed by daily scores of their asthmatic symptoms, twice daily PEFR measurements and the amount of anti-asthmatic medication used. Acute reversibility tests were performed every month at the clinic visits. Patients trea...