Dexamethasone - How It Works
Clinical pharmacology details from the US FDA-approved label: how Dexamethasone works in your body, how it's absorbed, how long it stays active, and how it's eliminated.
CLINICAL PHARMACOLOGY Glucocorticoids, naturally occurring and synthetic, are adrenocortical steroids that are readily absorbed from the gastrointestinal tract.
Glucocorticoids cause varied metabolic effects.
In addition, they modify the body's immune responses to diverse stimuli.
Naturally occurring glucocorticoids (hydrocortisone and cortisone), which also have sodium-retaining properties, are used as replacement therapy in adrenocortical deficiency states.
Their synthetic analogs including dexamethasone are primarily used for their anti-inflammatory effects in disorders of many organ systems.
At equipotent anti-inflammatory doses, dexamethasone almost completely lacks the sodium-retaining property of hydrocortisone and closely related derivatives of hydrocortisone.