Cromoglicic acid

Cromoglicic acid (INN)—also referred to as cromolyn (USAN), cromoglycate (former BAN), or cromoglicate—is traditionally described as a mast cell stabilizer, and is commonly marketed as the sodium salt sodium cromoglicate or cromolyn sodium. This drug prevents the release of inflammatory chemicals such as histamine from mast cells.

Cromoglicic acid
Clinical data
AHFS/Drugs.comInternational Drug Names
License data
Pregnancy
category
  • AU: B1
Routes of
administration
topical: oral, nasal spray, inhaled, eye drops
ATC code
Legal status
Legal status
  • AU: S2 (Pharmacy medicine)
  • UK: inhaler POM; eye OTC
  • US: OTC nasal; eye, inhaler: Rx only
Pharmacokinetic data
Bioavailability1%
Elimination half-life1.3 hours
Identifiers
  • 5,5′-(2-hydroxypropane-1,3-diyl)bis(oxy)bis(4-oxo-4H-chromene-2-carboxylic acid)
CAS Number
PubChem CID
IUPHAR/BPS
DrugBank
ChemSpider
UNII
KEGG
ChEBI
ChEMBL
CompTox Dashboard (EPA)
ECHA InfoCard100.036.602
Chemical and physical data
FormulaC23H16O11
Molar mass468.370 g·mol−1
3D model (JSmol)
  • O=C(O)C=4Oc3cccc(OCC(O)COc2cccc1O/C(=C\C(=O)c12)C(=O)O)c3C(=O)C=4
  • InChI=1S/C23H16O11/c24-11(9-31-14-3-1-5-16-20(14)12(25)7-18(33-16)22(27)28)10-32-15-4-2-6-17-21(15)13(26)8-19(34-17)23(29)30/h1-8,11,24H,9-10H2,(H,27,28)(H,29,30) Y
  • Key:IMZMKUWMOSJXDT-UHFFFAOYSA-N Y
 NY (what is this?)  (verify)

Cromoglicic acid has been the non-corticosteroid treatment of choice in the treatment of asthma, for which it has largely been replaced by leukotriene receptor antagonists because of their convenience (and perceived safety). Cromoglicic acid requires administration four times daily, and does not provide additive benefit in combination with inhaled corticosteroids.

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