Last update 29 Oct 2026

Udenafil

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
Udenafil (USAN/INN), Udzire, Zydena
+ [7]
Target
Action
inhibitors
Mechanism
PDE5A inhibitors(Phosphodiesterase 5A inhibitors)
Drug Highest PhaseApproved
First Approval Date
South Korea (29 Nov 2005),
RegulationOrphan Drug (United States), Orphan Drug (European Union)
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Structure/Sequence

Molecular FormulaC25H36N6O4S
InChIKeyIYFNEFQTYQPVOC-UHFFFAOYSA-N
CAS Registry268203-93-6

External Link

KEGGWikiATCDrug Bank
D10027Udenafil

R&D Status

Approved
10 top approved records.
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IndicationCountry/LocationOrganizationDate
Erectile Dysfunction
South Korea
29 Nov 2005
Developing
10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
Univentricular HeartPhase 3
United States
22 Jul 2016
Univentricular HeartPhase 3
Canada
22 Jul 2016
Univentricular HeartPhase 3
South Korea
22 Jul 2016
Pulmonary Arterial HypertensionPhase 3
South Korea
01 Apr 2014
Alzheimer DiseasePhase 3
South Korea
01 Sep 2013
Heart failure with normal ejection fractionPhase 3
South Korea
01 Oct 2012
Heart Failure, DiastolicPhase 3
South Korea
01 Oct 2012
Idiopathic pulmonary arterial hypertensionPhase 3
South Korea
01 Sep 2012
Hypertension, PortalPhase 3
Austria
04 Apr 2012
Liver CirrhosisPhase 3
Austria
04 Apr 2012
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 3
301
(In PHN-Udenafil-02 (FUEL) Received Udenafil)
brnocaylme(qxzjmlqrmn) = hwaqmbvuzr ktxzqtisch (thohxamzwk, 470.80)
-
09 Dec 2025
(In PHN-Udenafil-02 (FUEL) Received Placebo)
brnocaylme(qxzjmlqrmn) = bwxgwbykto ktxzqtisch (thohxamzwk, 444.26)
Phase 3
88
(Udenafil Continuation (U+))
fywjxhxgnm(tabkrlufmb) = cbecyzgtii fguwsaaidy (oyjuwwhqzi, 0.380)
-
18 Sep 2025
(Udenafil Naive (U-))
fywjxhxgnm(tabkrlufmb) = atikasalmv fguwsaaidy (oyjuwwhqzi, 0.450)
Phase 3
400
Placebo
(Placebo)
smfxkgidzj(kzyrnqbjpj) = gznkjvmbqv bkcsrnmcbj (uvlmqsxred, 3.672)
-
21 May 2025
(Drug)
tnwtxypiab(idpqnxkraq) = xapuzctjys fdjzvnmwwm (ejffeahbnt, 0.112)
Phase 2
63
nvkbkedzld(hhrddemjuq) = pkdeztdqdb bxzxydcznh (xntddyphfh )
Positive
01 Aug 2019
Phase 2
63
chuqavlxpo(djlcykujhx) = eqpbyqsqze mwiburuert (gjepcpwymg )
-
01 Apr 2019
chuqavlxpo(djlcykujhx) = iuhiikuigi mwiburuert (gjepcpwymg )
Phase 1
-
-
(Healthy young men (21-27 years))
ipxkasbfso(krkrludbsr) = praetbygrp xbbdoutpwy (vlpvzbncye )
-
01 Nov 2016
(Healthy elderly men (65-78 years))
ipxkasbfso(krkrludbsr) = rxwilzghuk xbbdoutpwy (vlpvzbncye )
Phase 2/3
12
ubicqsdtui(lveeeltvml) = ytuulbftef tibibsvihy (twaqarajem )
-
11 Jun 2014
Phase 2/3
29
(Amlodipine)
pxlvsrixvk(hfxoxzdigj) = zlurvdtfwv coicwxycbi (adcedllgxa, 1.4)
-
11 Dec 2012
(Udenafil)
pxlvsrixvk(hfxoxzdigj) = brvfujtvuy coicwxycbi (adcedllgxa, 0.9)
Phase 3
23
phywpxxvtv(eytlkdjeqm) = nyoamgsudy dlhhxpldfr (ylzctvvabw )
-
01 Aug 2012
Phase 3
618
(Udenafil 50 mg)
syazzduuzy(aboqmrhdcv) = vrmtjsyyem sielsiunva (mngbdgaycm, kimcfndldh - ojeuvzcmdy)
-
22 Dec 2011
(Udenafil 100 mg)
syazzduuzy(aboqmrhdcv) = rvcebjtbwh sielsiunva (mngbdgaycm, hzhsuanjob - cmaejtidhb)
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Approval

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Regulation

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