phenylephrine
noun
phen·yl·eph·rine
ˌfe-nᵊl-ˈe-ˌfrēn 
-frən
: a sympathomimetic agent C9H13NO2 that is used in the form of its hydrochloride as a vasoconstrictor, a mydriatic, a nasal decongestant, and by injection to raise the blood pressure
Examples of phenylephrine in a Sentence
Recent Examples on the Web
The combination of acetaminophen, dextromethorphan, and phenylephrine is better at alleviating the common cold symptoms.
—
Alex Yampolsky, Verywell Health, 17 July 2024
Oral phenylephrine, the active ingredient in decongestants sold in the U.S. since 2005, doesn't work.
—Laura Helmuth, Scientific American, 1 Mar. 2024
Roughly two decades ago, oral phenylephrine began proliferating on pharmacy shelves despite mounting—and now damning—evidence that the drug simply does not work.
—Sarah Zhang, The Atlantic, 13 Sep. 2023
The panel’s vote tees up a likely decision by the agency on whether to essentially ban the ingredient, phenylephrine, which would result in pulling hundreds of products containing it from store shelves.
—Roni Caryn Rabin, New York Times, 13 Sep. 2023
See all Example Sentences for phenylephrine 
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Alex Yampolsky, Verywell Health, 17 July 2024
Oral phenylephrine, the active ingredient in decongestants sold in the U.S. since 2005, doesn't work.
—Laura Helmuth, Scientific American, 1 Mar. 2024
Roughly two decades ago, oral phenylephrine began proliferating on pharmacy shelves despite mounting—and now damning—evidence that the drug simply does not work.
—Sarah Zhang, The Atlantic, 13 Sep. 2023
The panel’s vote tees up a likely decision by the agency on whether to essentially ban the ingredient, phenylephrine, which would result in pulling hundreds of products containing it from store shelves.
—Roni Caryn Rabin, New York Times, 13 Sep. 2023
See all Example Sentences for phenylephrine
Dictionary Entries Near phenylephrine
Cite this Entry
“Phenylephrine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/phenylephrine. Accessed 7 Nov. 2024.
Copy CitationMedical Definition
phenylephrine
noun
phen·yl·eph·rine
ˌfen-ᵊl-ˈef-ˌrēn, -rən
: a sympathomimetic agent with vasoconstrictive properties that is used in the form of its hydrochloride C9H13NO2·HCl especially as a nasal decongestant and mydriatic and to raise blood pressure
Note: Trademarks for preparations containing phenylephrine include Actifed and Neo-Synephrine.
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