Medical Dictionary

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—see neo-synephrine

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