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
Origin of phenylephrine
phenyl + epinephrine
First Known Use: circa 1947
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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Medical Dictionary: Definition of "phenylephrine"
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