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Ritalin

American  
[rit-l-in] / ˈrɪt l ɪn /
Pharmacology, Trademark.

  1. a brand of methylphenidate in its hydrochloride form.

Ritalin British  
/ ˈrɪtəlɪn /

noun

  1. a preparation of methylphenidate, a drug related to amphetamine, used to treat attention deficit disorder in children

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.