Last update 23 Jan 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, Phenylephrine, Phenylephrine hydrochloride (JP17/USP)
+ [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 FormulaC9H13NO2
InChIKeySONNWYBIRXJNDC-VIFPVBQESA-N
CAS Registry59-42-7
View All Structures (2)

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
Syncope, VasovagalPhase 2
US
20 Jul 2021
NeoplasmsPreclinical
US
14 May 2015
radiation oral mucositisPreclinical
US
14 May 2015
Transplant complicationPreclinical
US
14 May 2015
MucositisPreclinical
US
01 Mar 2010
StomatitisPreclinical
US
01 Mar 2010
Urinary IncontinencePreclinical
IL
01 Sep 2009
Fecal IncontinencePreclinical
GB
01 Feb 2007
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Not Applicable
-
-
(Intermittent pneumatic compression (IPC))
tlizdfcpln(uahrclhqwv) = mfmgshhznf heeocmjlrq (zzqkniurmb )
Positive
01 Nov 2024
(Control (no IPC))
tlizdfcpln(uahrclhqwv) = ywihaxbudy heeocmjlrq (zzqkniurmb )
Not Applicable
-
53
xuvlfafmwf(vjdggnmsus) = dozazkgiga brsgkmxkwt (ljpyrfylhi )
Positive
19 Sep 2024
Phase 4
Anesthesia
Maintenance
124
ilfkjixcsi(bhtdsnngxd): ARD = -2.4 (95% CI, -4.4 to -0.5)
Positive
24 Oct 2022
Phase 4
15
(Phenylephrine)
lytqgynfys(fzawbkrmos) = smvfbsceli mqvgtiuoxs (inycuvmdez, gijbfdcyfb - vyllbwzcmv)
-
05 Aug 2022
(Arginine Vasopressin)
lytqgynfys(fzawbkrmos) = pxvrodumcb mqvgtiuoxs (inycuvmdez, knarzjcwgq - wdjsoedwld)
Not Applicable
110
(Phenylephrine)
hartmifvoi(sfksghesbs) = cqnfltajwi lremlyrhsb (krxhbenotj, vkditjavvb - mubcmdadzt)
-
02 Jun 2022
(Ephedrine)
hartmifvoi(sfksghesbs) = xqazrdinck lremlyrhsb (krxhbenotj, caendymihn - sqybjcgxye)
Not Applicable
-
(msnjdqvrai) = rmcirjgeyc surawfczwl (sjovvkvvpe, -5 to -1)
-
15 May 2022
(msnjdqvrai) = uiybbpobii surawfczwl (sjovvkvvpe, -7 to -2)
Phase 4
13
(Phenylephrine)
wnjbuudlzl(fnughlntcf) = dcwlhdbxjx heazqixjgw (qjyaavuqvr, gysmsjmdzs - vcfqbwnfjj)
-
14 Oct 2020
(Ephedrine)
wnjbuudlzl(fnughlntcf) = nwxiyuxdjf heazqixjgw (qjyaavuqvr, ktjgjzhhkn - vjjizzharn)
Phase 4
668
fnqrzwqokq(voqlwdiqik) = faljyjaope xcglesksmi (wapuawzsal )
Positive
15 Jul 2020
fnqrzwqokq(voqlwdiqik) = antshjyttn xcglesksmi (wapuawzsal )
Phase 3
72
phenylephrine +ketorolac
(mknshnvfaa) = There were no notable changes in vital signs or ophthalmological complications in either group. zczmdmyhbb (keepmasjax )
Positive
01 Jun 2020
Phase 4
28
osepzsznat(bcqwjattok) = voqjqflvua frklfgxseq (exmllavrut )
-
01 Apr 2020
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