Abstract
In the treatment of asthma salbutamol can be administered as an aerosol with a metered-dose inhaler or as a powder with a breath-actuated device (Rotahaler). The two forms of the drug were compared in a double-blind placebo-controlled study involving 10 asthmatic adults who were known to respond to salbutamol. The bronchodilating effect of the aerosol and the powder at doses of 200 micrograms and of the powder at doses of 200 and 400 micrograms was compared, bronchodilation being measured in terms of forced expiratory volume and vital capacity. The response was far greater to salbutamol than to placebo, but there was no significant difference between the two forms of the drug or between the lower and higher doses of powder. No side effects were observed.
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Selected References
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