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betamethasone

American  
[bey-tuh-meth-uh-sohn, bee-] / ˌbeɪ təˈmɛθ əˌsoʊn, ˌbi- /

noun

Pharmacology.
  1. a synthetic analogue of a glucocorticoid, C 22 H 29 FO 5 , used in various forms in the treatment of inflammation, allergies, and tumors, and for replacement therapy in adrenal insufficiency.


Etymology

Origin of betamethasone

Perhaps beta + meth(yl) + -a- connective vowel + (hydrocorti)sone, components of the chemical name

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.

The source of all the trouble was a medication called betamethasone, which Baffert has steadfastly argued was administered in an ointment for a rash on Medina Spirit’s hindquarters.

From Los Angeles Times • Apr. 30, 2025

In 2021, his colt Medina Spirit won the Derby but subsequently was disqualified after testing positive for betamethasone, a potent corticosteroid used to reduce pain and inflammation.

From New York Times • May 2, 2024

In a statement, Churchill Downs said Baffert continues to “peddle false narratives” about Medina Spirit’s failed drug test for a steroid, betamethasone, that is legal in Kentucky but is banned on race day.

From Washington Times • Jul. 3, 2023

Baffert’s legal team has contended that Medina Spirit was treated with an ointment that contained betamethasone, an anti-inflammatory, to control a rash on the horse’s hind quarter.

From Los Angeles Times • Jul. 3, 2022

Medina Spirit tested positive for betamethasone, an anti-inflammatory medication.

From Seattle Times • May 3, 2022

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