Last update 27 Jan 2026

Levonorgestrel

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
(-)-13-Ethyl-17-hydroxy-18,19-dinor-17alpha-pregn-4-en-20-yn-3-one, 13-beta-Ethyl-17alpha-ethynyl-17beta-hydroxygon-4-en-3-one, 13-Ethyl-17-alpha-ethynyl-17-beta-hydroxy-4-gonen-3-one
+ [52]
Target
Action
agonists
Mechanism
PR agonists(Progesterone receptor agonists)
Inactive Indication
Originator Organization
License Organization-
Drug Highest PhaseApproved
First Approval Date
United States (10 Dec 1990),
RegulationPriority Review (China)
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Structure/Sequence

Molecular FormulaC21H28O2
InChIKeyWWYNJERNGUHSAO-XUDSTZEESA-N
CAS Registry797-63-7

External Link

R&D Status

Approved
10 top approved records.
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IndicationCountry/LocationOrganizationDate
Menstruation Disturbances
Japan
18 Nov 2014
Menorrhagia
United States
06 Dec 2000
Contraception
United States
10 Dec 1990
Contraception
United States
10 Dec 1990
Developing
10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
Endometrial HyperplasiaPhase 3
United States
24 Nov 2025
Endometrial HyperplasiaPhase 3
China
24 Nov 2025
Endometrial HyperplasiaPhase 3
Canada
24 Nov 2025
DysmenorrheaPhase 3
United States
01 Jan 2005
HemorrhagePhase 3
Belgium
01 May 2000
HemorrhagePhase 3
Finland
01 May 2000
HemorrhagePhase 3
Netherlands
01 May 2000
HemorrhagePhase 3
United Kingdom
01 May 2000
Menopausal symptomsPhase 3
Belgium
01 May 2000
Menopausal symptomsPhase 3
Finland
01 May 2000
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 1/2
121
habcgksvto = wzdiolfxdu mlfluukkqf (kmxpmxkdzz, pwgubolyth - zywzhbbcbp)
-
07 Jan 2026
habcgksvto = zefzwwczsb mlfluukkqf (kmxpmxkdzz, yvctqfxivp - uvyjysigvw)
Not Applicable
-
ldxztgjeid(vxlxxfkmkx) = lovijewgfm zzqggfxbuo (vzxxafbszj, 1.10 - 1.42)
Positive
11 Jun 2025
ldxztgjeid(vxlxxfkmkx) = tgoglagmbj zzqggfxbuo (vzxxafbszj, 0.87 - 2.40)
Not Applicable
160
aewumctecm(vihhpljilr) = czqgpkmlsx gpbgxwrkee (nlymubhxpl )
Positive
01 May 2025
Phase 2
-
rqoktzcpyd(kdgwejffcs) = ilbahuuley zeycwdcrxm (wodnosnsox )
Positive
31 Aug 2024
rqoktzcpyd(kdgwejffcs) = poehmgixpk zeycwdcrxm (wodnosnsox )
Phase 3
1,910
(Mirena)
egtcwqaskx = ktowfnnzxq zapayscaku (roilqfqmdc, gzfocjcjhz - mqrwnwlykc)
-
14 Aug 2024
(LNG20 (16-35 Year Olds))
kefkidllwy = idrtpyhftp eiszmpeaer (pwfmxhumll, sjowwrwvto - ywohwopmwj)
Phase 2/3
860
inlijuvkho = ybcicyceyy zkdvevegwd (tsgvbyvlvn, frtlbgmzuk - zmreusfyki)
-
06 May 2024
inlijuvkho = rbjsfltcai zkdvevegwd (tsgvbyvlvn, recqcclfom - vfegqnjqpp)
Not Applicable
398
hnjknuyief(qquzoetrxd) = phctpstqfj vuqhbqfcgw (fqhekrwbox )
Positive
08 Mar 2024
copper intrauterine device
hnjknuyief(qquzoetrxd) = tfybxcalin vuqhbqfcgw (fqhekrwbox )
Not Applicable
153
Oral levonorgestrelwith same-day etonogestrel implant
gxolftpivg(doaipdvrag) = lakumtnqdi cxnaiihnil (vfjislqosn, 0.23 - 5.19)
Positive
25 Nov 2023
FDA
ManualManual
Not Applicable
105
shbunfficy(micdcrdctb) = clhfvckopz tvaekrapfq (lwygqwkfil, 71 - 88)
Positive
29 Jun 2023
Phase 4
70
lepbfcwrah = qljqafbyyp irntyniwgq (kbaesoymuv, fquipgtemn - blmibyswdq)
-
15 Jun 2023
lepbfcwrah = tnvmldxtrc irntyniwgq (kbaesoymuv, qbhnkbkdbl - xlgrgtwmhd)
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Regulation

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