methylphenidate

noun

: a mild stimulant C14H19NO2 of the central nervous system used in the form of its hydrochloride to treat narcolepsy and hyperactivity disorders (such as attention deficit hyperactivity disorder) in children

Examples of methylphenidate in a Sentence

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The majority of them (88%) were prescribed methylphenidate by their doctors. Anuradha Varanasi, Forbes.com, 22 Aug. 2025 This finding matches with prior research, carried out in lab mice and rats, which has found that long-term methylphenidate treatment in juvenile animals normalizes some abnormalities in dopamine-rich brain regions. David Cox, NBC news, 25 Mar. 2026 Stimulant drugs like methylphenidate (Ritalin, Concerta) that are designed to improve attention are first-line treatments for ADHD. New Atlas, 14 Apr. 2025 Caffeine While stimulant medications like Ritalin (methylphenidate) are used to treat ADHD, the research results on caffeine as a stimulant option are mixed. Heather Jones, Verywell Health, 10 Oct. 2025 See All Example Sentences for methylphenidate

Word History

Etymology

methyl + phenyl + piperidine + acetate

First Known Use

1956, in the meaning defined above

Time Traveler
The first known use of methylphenidate was in 1956

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Cite this Entry

“Methylphenidate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/methylphenidate. Accessed 7 Jul. 2026.

Medical Definition

: a mild stimulant of the central nervous system that is administered orally in the form of its hydrochloride C14H19NO2·HCl to treat narcolepsy and attention deficit hyperactivity disorder

Note: Trademarks for methylphenidate include Concerta, Quillivant, and Ritalin.

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