The effect on lung function of two puffs of a mixture of 1 mg disodium cromoglycate (DNCG) and 0.5 mg of reproterol hydrochloride (Aarane) administered by metered dose inhaler through 4 different spacer devices (Volumatic, Nebuhaler, InspirEase and Synchron-Aerosol) was tested in 18 asthmatic patients (age 8-15 years). There was no loss or gain in the effectiveness of treatment from the tested aerosol according to the type of inhalation device used.
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