Disodium cromoglycate with low moisture content - for inhalation compsns. for treating asthma, hay-fever etc. contg. propellant, surfactant and other adjuvants

摘要

Disodium cromoglycate (I) is characterised in that it contains 5 (pref. 0.05-1) wt% of water. The lower moisture content (I) allows easier operation of valves (in pressurised containers) and reduces losses of propellant when filling the containers. Pref. (I) is finely divided having an average diameter 20 microns, pref. 0.01-10 microns and esp. where at least 50 wt% have a diameter of 2-5 microns.