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 (fĕn′əl-ĕf′rēn, fē′nəl-)
An adrenergic drug, C9H13NO2, that is a powerful vasoconstrictor and is used to relieve nasal congestion, dilate the pupils, and maintain blood pressure during anesthesia.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˌfiːnaɪlˈɛfriːn; ˌfiːnaɪlˈɛfrɪn)
(Pharmacology) pharmacol a drug that is used to ease congestion in the nasal passages and treat low blood pressure
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌfɛn lˈɛf rin, -rɪn, ˌfin-)

an alpha-adrenergic stimulant, C19H13NO2, used chiefly as a nasal decongestant.
[1945–50; phenyl + (epin) ephrine]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.phenylephrine - a powerful vasoconstrictor used to dilate the pupils and relieve nasal congestion
adrenergic, adrenergic drug - drug that has the effects of epinephrine
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


n fenilefrina
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
After equilibration, the ileum and duodenum segments were contracted with acetylcholine (ACh) ([10.sup.-4]-[10.sup.-7],6 M) and relaxed with phenylephrine ([10.sup.-4]-[10.sup.-7],6 M).
Our primary outcome was the total phenylephrine dose administered for the period between spinal block placement and delivery.
POUNDSTRETCHER Galpharm Max Strength Cold & Flu Capsules 16s 500mg paracetamol, caffeine 25mg and phenylephrine hydrochloride 6.1mg 69p
Galpharm Max Strength Cold & Flu Capsules 16's 500mg paracetamol, caffeine 25mg and phenylephrine hydrochloride 6.1mg 69p
To compare the effects of phenylephrine and ephedrine on foetal acidosis and APGAR score.
Group A given prophylactic phenylephrine infusion at the rate of 0.75ug/kg/minute for 5minutes after initiation of spinal anesthesia.
Maternal blood pressure was maintained with titrated phenylephrine infusions or boluses in both groups.
The present study aimed to evaluate the effect of prophylactic infusion of a combined ephedrine and phenylephrine on maternal hemodynamic before the induction of spinal anesthesia for cesarean section.
The Phase II, masked, non-randomized, cross-over study evaluated 12 subjects who underwent pupil dilation with topical phenylephrine administered by a 32-[micro sign]L eye dropper (at one of two concentrations: 2.5% or 10% formulation) in one eye and an 8-[micro sign]L micro-dosing administered electronically (10% formulation) in the other eye.
That's more than I can say for phenylephrine and our other real-medicine-placebos.
Optimal tension, selected from preliminary experiments, was that which gave the greatest response to [10.sup.-6] M phenylephrine. The rings were given 2 g (100%) of initial tension and allowed to equilibrate for 2 h.