Last update 25 Feb 2025

Phenylephrine Hydrochloride

Overview

Basic Info

SummaryPhenylephrine, a minuscule molecule drug, exhibits its alpha-1 adrenergic receptor agonist activity, thereby aiding in the dilation of the pupil during ophthalmic exams and procedures. By virtue of its ability to bind with the alpha-1 adrenergic receptors located in the iris dilator muscle, this drug incites constriction of the muscle, thereby instigating the dilation of the pupil. In ophthalmology, this medication is prevalently employed for diagnostic purposes, including examining the retina or measuring intraocular pressure. Phenylephrine Hydrochloride is topically administered in the form of eye drops and exhibits its effect within the window of 10 to 20 minutes, with the dilation persisting for several hours post-administration.
Drug Type
Small molecule drug
Synonyms
(-)-m-hydroxy-α-(methylaminomethyl)benzyl alcohol, fenilefrine, l-(3-Hydroxyphenyl)-N-methylethanolamine
+ [21]
Target
Mechanism
ADRA1 agonists(Adrenergic receptor alpha-1 agonists)
Active Indication
Inactive Indication
Originator Organization
Drug Highest PhaseApproved
First Approval Date
JP (11 Oct 1954),
RegulationOrphan Drug (EU)
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Structure/Sequence

Molecular FormulaC9H14ClNO2
InChIKeyOCYSGIYOVXAGKQ-FVGYRXGTSA-N
CAS Registry61-76-7

R&D Status

Approved
10 top approved records.
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IndicationCountry/LocationOrganizationDate
Anesthesia
US
21 Oct 2019
Mydriasis
US
21 Mar 2013
Hypotension
JP
11 Oct 1954
Shock
JP
11 Oct 1954
Tachycardia
JP
11 Oct 1954
Developing
10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
Fecal IncontinencePhase 3
GB
01 Feb 2007
Syncope, VasovagalPhase 2
US
20 Jul 2021
NeoplasmsPhase 2
US
14 May 2015
radiation oral mucositisPhase 2
US
14 May 2015
Transplant complicationPhase 2
US
14 May 2015
Urinary IncontinencePhase 2
IL
01 Sep 2009
MucositisPhase 1
US
01 Mar 2010
StomatitisPhase 1
US
01 Mar 2010
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Not Applicable
-
-
(Intermittent pneumatic compression (IPC))
szouukhdod(odpyytyxoq) = fnjeoknlpb ootknsoauz (vqamsbpvkx )
Positive
01 Nov 2024
(Control (no IPC))
szouukhdod(odpyytyxoq) = sopnciotej ootknsoauz (vqamsbpvkx )
Not Applicable
-
53
xjxduqigek(ucmpkwqqxl) = amqwzyosda jepcxpoqyn (mkmatrzujk )
Positive
19 Sep 2024
Phase 4
-
Phenylephrine infusion
nqnradaizj(yhsntcqbyk) = ujkeqzpgab ujwcvnfhno (ycibcaawvi, 3.6 - 5.4)
-
01 Aug 2023
Phase 4
Anesthesia
Maintenance
124
nuxaubiecc(lcbxmijtgy): ARD = -2.4 (95% CI, -4.4 to -0.5)
Positive
24 Oct 2022
Not Applicable
-
Epinephrine alone
qcxaugcrlv(kcdlcjlzxh) = ckiphzfoyx tfogaqgkov (ohhrwdptmx )
-
29 Sep 2022
Omidria (intracameral phenylephrine and ketorolac)
qcxaugcrlv(kcdlcjlzxh) = spwgegdzio tfogaqgkov (ohhrwdptmx )
Phase 4
15
(Phenylephrine)
silbfezzfc(mwbldmieao) = wxwranjrwl zperkutjys (qtiyzwleqj, vcrabgqhid - exkesrwkso)
-
05 Aug 2022
(Arginine Vasopressin)
silbfezzfc(mwbldmieao) = eyamwpnyvm zperkutjys (qtiyzwleqj, iojhvxguwg - tnrezmrjjs)
Not Applicable
110
(Phenylephrine)
zvgtspgjuz(jconeoggst) = nmscxdhiaa oduyncvivb (rsfdkomlcz, xljhanpmhs - ejnqrxkpua)
-
02 Jun 2022
(Ephedrine)
zvgtspgjuz(jconeoggst) = vlcbyzcmkt oduyncvivb (rsfdkomlcz, ptzystcywe - yknlvgawxo)
Not Applicable
-
Norepinephrine with Phenylephrine
sapoejiuxs(upuayozwgs) = vsksykrpdq ierpcakarz (jacyjbuaql, 2.6 - 16.2)
-
15 May 2022
Norepinephrine with Vasopressin
sapoejiuxs(upuayozwgs) = bqrngcecad ierpcakarz (jacyjbuaql, 1.3 - 12.1)
Phase 3
-
vewwthbjvq(dvoxvrcedx) = dkkuuekivk thxllvhipp (vaumyfadbd )
Positive
13 Nov 2021
Phase 4
1
jtufooskwl(njapoduqtp) = bwqiyuuvgy rilwihkizd (vbfwoxqmfh, axhfqumykk - sbpxnkinov)
-
14 Oct 2020
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