dextroamphetamine

noun

dex·​tro·​am·​phet·​amine ˈdek-(ˌ)strō-am-ˈfe-tə-ˌmēn How to pronounce dextroamphetamine (audio)
-mən
: a drug consisting of the dextrorotatory form of amphetamine that is usually administered in the form of its sulfate (C9H13N)2·H2SO4 chiefly in the treatment of narcolepsy and attention deficit hyperactivity disorder

Note: Dextroamphetamine is a strong stimulant of the central nervous system and is a common drug of abuse.

Examples of dextroamphetamine in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Sarah Paquin says her 9-year-old son, Declan, takes dextroamphetamine for his ADHD. Cara Lynn Shultz, People.com, 13 June 2025 Adderall, a prescription ADHD and narcolepsy medication, includes a mixture of amphetamine/dextroamphetamine, not methamphetamine. Julia Marnin, Sacbee.com, 21 Apr. 2025 The drugs include Adderall, Vyvanse and generic amphetamines, such as dextroamphetamine. Akshay Syal, M.d., NBC News, 12 Sep. 2024

Word History

First Known Use

1943, in the meaning defined above

Time Traveler
The first known use of dextroamphetamine was in 1943

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Cite this Entry

“Dextroamphetamine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dextroamphetamine. Accessed 5 Jul. 2026.

Medical Definition

dextroamphetamine

noun
dex·​tro·​am·​phet·​amine ˌdek-(ˌ)strō-am-ˈfet-ə-ˌmēn, -mən How to pronounce dextroamphetamine (audio)
variants or chiefly British dexamphetamine
: a drug consisting of dextrorotatory amphetamine that is usually administered in the form of its sulfate (C9H13N)2·H2SO4, chiefly in the treatment of narcolepsy and attention deficit hyperactivity disorder

Note: Trademarks for preparations containing dexamphetamine include Adderall and Dexedrine. It is a strong stimulant of the central nervous system and is a common drug of abuse.

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