cys·​te·​amine | \ si-ˈstē-ə-mən How to pronounce cysteamine (audio) \

Definition of cysteamine

: a cysteine derivative C2H7NS used especially to treat cystinuria

Examples of cysteamine in a Sentence

Recent Examples on the Web With the smell under control, Shah and her team began studying cysteamine. Allure Editors, Allure, 13 Sep. 2022 That’s why patients on the standard treatment, a drug called cysteamine, still get sicker and die of their disease, Cherqui said. Sarah Zhang, The Atlantic, 22 June 2022 Found in its highest concentration in human milk, cysteamine is a newer ingredient in the market for treating hyperpigmentation when blended with niacinamide. Dori Price, Good Housekeeping, 23 Mar. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cysteamine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of cysteamine

1943, in the meaning defined above

History and Etymology for cysteamine

cysteine + amine

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Time Traveler for cysteamine

Time Traveler

The first known use of cysteamine was in 1943

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Statistics for cysteamine

Last Updated

23 Sep 2022

Cite this Entry

“Cysteamine.” Dictionary, Merriam-Webster, Accessed 30 Sep. 2022.

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More Definitions for cysteamine


cys·​te·​amine | \ sis-ˈtē-ə-mən How to pronounce cysteamine (audio) \

Medical Definition of cysteamine

: a cysteine derivative used in the form of its bitartrate C2H7NS·C4H6O6 to treat cystinosis and especially formerly as an antidote for acetaminophen overdose

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