Sodium cromoglycate delivered by pressurized aerosol in the treatment of asthma

Abstract

Summary Sodium cromoglycate (SCG) powder often clumps in the presence of high humidity, making inhalation ineffective. A pressurized aerosol containing 1 mg SCG per actuation was made; and a double‐blind cross‐over trial in twenty‐four young patients with perennial extrinsic asthma over 8 weeks showed that 2 mg of SCG aerosol was as effective as 20 mg of the powder, and almost all patients preferred using the aerosol.