cromolyn sodium

cro·mo·lyn sodium   (krō'mə-lĭn)    n.  A drug, C23H14Na2O11, usually administered by inhalation and used to prevent certain allergic attacks, especially those associated with asthma or hay fever. [Alteration of chromonyl, one of its constituents (chrom(o)- + -on(e) + -yl) + sodium.]

Main Entry: cro·mo·lyn sodium
Pronunciation: "krO-m&-l&n-
Function: noun
: a drugC₂₃H₁₄Na₂O₁₁ that inhibits the release of histamine from mast cells and is used usually as an inhalant to prevent the onset of bronchial asthma attackscalled also cromolyn, disodium cromoglycate, sodium cromoglycate; —see INTAL