NCIt definition : The disodium salt of the 21-phosphate ester of betamethasone, a synthetic glucocorticoid
with metabolic, immunosuppressive and anti-inflammatory actions. Betamethasone sodium
phosphate binds to specific intracellular glucocorticoid receptors and subsequently
binds to DNA to modify gene expression. The synthesis of certain anti-inflammatory
proteins is induced while the synthesis of certain inflammatory mediators is inhibited.
As a result, there is an overall reduction in chronic inflammation and autoimmune
reactions.;