phenylephrine

noun

phen·yl·eph·rine | \ ˌfe-nᵊl-ˈe-ˌfrēn

, -frən \

Definition of phenylephrine

: 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 Anything containing phenylephrine, which is the active ingredient in many popular over-the-counter nasal decongestants, may be particularly harmful to those with cardiovascular issues. — Zee Krstic, Good Housekeeping, 11 Jan. 2021 Each pod has acetaminophen to relieve pain and reduce fevers, dextromethorphan HBr to quiet coughs and phenylephrine HCl to clear nasal passages. — Good Housekeeping Editors, Good Housekeeping, 16 Oct. 2019

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

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Dictionary Entries Near phenylephrine

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Cite this Entry

“Phenylephrine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/phenylephrine. Accessed 15 Aug. 2022.

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More Definitions for phenylephrine

phenylephrine

noun

phen·yl·eph·rine | \ ˌfen-ᵊl-ˈef-ˌrēn, -rən

Medical Definition of phenylephrine

: 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.