pseu·​do·​ephed·​rine | \ ˌsü-dō-i-ˈfed-rən How to pronounce pseudoephedrine (audio) , British also -ˈe-fə-drən\

Definition of pseudoephedrine

: an isomer of ephedrine used in the form of its hydrochloride or sulfate especially to relieve nasal congestion

Examples of pseudoephedrine in a Sentence

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The active ingredient in meth is pseudoephedrine, found in many over-the-counter cold medications. Alexis Stevens, The Seattle Times, "Georgia tallies meth’s toll: Nearly 20 percent of those killed by police in state test positive for it," 20 Nov. 2018 According to Kentucky’s Office of Drug Control Policy, the state was one of several that passed laws in 2005 restricting the sale of products containing pseudoephedrine (PSE), a key ingredient in meth production. Jameelah Nasheed, Teen Vogue, "Kentucky State Police Say a Teen Got His Parents Busted for Allegedly Cooking Meth," 21 Sep. 2018 Although the effects are wildly different, pseudoephedrine (the active ingredient in Sudafed) is almost the same molecule as meth, and turning one into the other takes just a few steps. William Herkewitz, Popular Mechanics, "Breaking Bad Fact vs Fiction: Walter White's Secret Formula," 19 Aug. 2013 Graeff, 43, is accused in Clark County of manufacturing meth and possession of pseudoephedrine with the intent to manufacture meth. Everton Bailey Jr.,, "Attorney accused of shooting other lawyer's office suspected of having home meth lab," 26 Mar. 2018 For instance, medications containing pseudoephedrine can decrease milk supply, and your doctor may discourage hormonal birth control methods while breastfeeding, according to the Mayo Clinic. Taylyn Washington-harmon, SELF, "Tia Mowry Says These Foods Help Keep Up Her Milk Supply," 22 June 2018 The toxicology tests detected amounts of pseudoephedrine (Sudafed) and zolpidem (a sedative most commonly used in Ambien). Nick Powell, Houston Chronicle, "Texas City Commissioner Dee Ann Haney indicted for car crash that killed 2 people," 3 May 2018 In response, Congress passed the Combat Methampetamine Epidemic Act of 2005 to regulate and limit the sale of cold and allergy medicines that contain pseudoephedrine, ephedrine or phenylpropanolamine, traditionally used to make meth. Beth Warren, The Courier-Journal, "Meth, deadlier than ever, could be the 'next phase of drug epidemic'," 3 May 2018 In 2005 Congress passed the Combat Methamphetamine Act, which put pseudoephedrine behind the counter, limited sales to 7.5 grams per customer in a 30-day period and required pharmacies to track sales. Frances Robles, New York Times, "Meth, the Forgotten Killer, Is Back. And It’s Everywhere.," 13 Feb. 2018

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

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First Known Use of pseudoephedrine

1889, in the meaning defined above

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The first known use of pseudoephedrine was in 1889

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pseu·​do·​ephed·​rine | \ -i-ˈfed-rən, British also -ˈef-ə-drən\

Medical Definition of pseudoephedrine

: a crystalline alkaloid C10H15NO that is isomeric with ephedrine and is administered chiefly in the form of its hydrochloride C10H15NO·HCl or sulfate (C10H15NO)2·H2SO4 especially to relieve nasal congestion

Comments on pseudoephedrine

What made you want to look up pseudoephedrine? Please tell us where you read or heard it (including the quote, if possible).


to affect and impair by alcohol or a drug

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