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dexamethasone

American  
[dek-suh-meth-uh-sohn, -zohn] / ˌdɛk səˈmɛθ əˌsoʊn, -ˌzoʊn /

noun

Pharmacology.
  1. a crystalline, water-soluble steroid, C 22 H 29 FO 5 , used in the treatment of certain allergic or inflammatory conditions, as rheumatoid arthritis, bronchial asthma, or dermatosis.


Etymology

Origin of dexamethasone

First recorded in 1955–60; perhaps Dexa(myl) + meth(yl) + -a- (of uncertain origin) + (corti)sone


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

This involved taking a dose of dexamethasone at night and having blood drawn the next morning to measure cortisol levels.

From Science Daily ● Mar. 30, 2026

The FDA approved Blenrep as a treatment for multiple myeloma, a form of blood cancer, when administered in conjunction with two other medicines, called bortezomib and dexamethasone.

From Barron's ● Oct. 24, 2025

Nice said the drug cost £4,320 for a 1,800mg per 15ml vial and, along with bortezomib, cyclophosphamide and dexamethasone, was recommended as an option for treating newly diagnosed AL amyloidosis in adults.

From BBC ● Mar. 4, 2024

It's imperative that further research be carried out to see whether the keto diet has a similar effect in humans — and crucially, whether treatment with dexamethasone delays the onset of cachexia in humans, too.

From Salon ● Jun. 21, 2023

A short distance below the South Summit, as the climbers descended into thick clouds and falling snow, Pittman collapsed again and asked Fox to give her an injection of a powerful steroid called dexamethasone.

From "Into Thin Air" by Jon Krakauer

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