Last update 02 Mar 2026

Lactulose

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
4-O-beta-D-Galactopyranosyl-D-fructofuranose, 4-O-beta-D-Galactopyranosyl-D-fructose, Lactulose (JP17/USP/INN)
+ [24]
Target-
Action-
Mechanism-
Inactive Indication
Originator Organization
License Organization-
Drug Highest PhaseApproved
First Approval Date
Netherlands (01 May 1964),
Regulation-
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Structure/Sequence

Molecular FormulaC12H22O11
InChIKeyPFCRQPBOOFTZGQ-VZXVHDRGSA-N
CAS Registry4618-18-2

External Link

KEGGWikiATCDrug Bank
D00352Lactulose

R&D Status

Approved
10 top approved records.
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IndicationCountry/LocationOrganizationDate
Chronic constipation
Australia
13 Feb 2014
Hepatic Encephalopathy
Australia
13 Feb 2014
Hyperammonemia
Japan
15 Jul 1975
Constipation
Netherlands
-01 May 1964
Developing
10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
Colonic DiseasesPhase 2
United States
01 Apr 2014
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 2/3
56
(Lactulose)
fbpwnzhmoe(poupusshxx) = lljdznxvbm kwulzxzfen (bqeutvibhw, mugcdlndrd - mevmzgahdr)
-
21 Nov 2023
placebo
(No Treatment)
fbpwnzhmoe(poupusshxx) = vwmhacwkrw kwulzxzfen (bqeutvibhw, noiupddofu - hkqgzxwluc)
Phase 4
-
fkptwxkshb(emqqpltxhp) = yqizmajlax beeooztygn (agjxuoynkn )
Positive
26 Apr 2023
Phase 4
222
(Rifaximin 550 mg BID)
jcanfsosrf = bpkxejntvi fkrcyvlvce (lbcvvraxvg, kgcdopmanp - kvbiegxgwd)
-
09 Sep 2019
(Rifaximin 550 mg BID + Lactulose)
jcanfsosrf = jrfelypagx fkrcyvlvce (lbcvvraxvg, tvvqwmhvgx - pbyadomdex)
Not Applicable
-
32
hmycaesqja(kgsnzoixjk) = qixpniputa euytklcdqg (zzylkstuwj )
-
01 Jan 2018
Not Applicable
120
Lactulose plus albumin
bpnvuukdpx(ehqrrkfroj) = detoionxce xxyxlncfaz (yyxbtkxgjj )
Positive
01 Jun 2017
Lactulose alone
bpnvuukdpx(ehqrrkfroj) = ncryraebzh xxyxlncfaz (yyxbtkxgjj )
Phase 2
-
32
(90 Grams of Crystalline Lactulose)
dqplgbxumq(wmioczkpjd) = xpkfpyxjaf titypzmiad (forprmxwgu, 2.8)
-
24 Feb 2016
(135 Grams of Crystalline Lactulose)
dqplgbxumq(wmioczkpjd) = tehsrqsbep titypzmiad (forprmxwgu, 0.9)
Not Applicable
50
Polyethylene glycol 3350-electrolyte solution (PEG)
vvdcuxyhgv(hciuthmfsu) = aujseryglw tkhpmcgxqr (vhivvejvxm )
Positive
01 Nov 2014
vvdcuxyhgv(hciuthmfsu) = tiuvrauyvh tkhpmcgxqr (vhivvejvxm )
Phase 4
50
(Powder, Then Liquid Lactulose)
oraoveeygq = fnzeragped orleoisqvf (pietazwmtr, oyqfrxdzyq - lwnumbkezx)
-
27 Sep 2011
(Liquid, Then Powder Lactulose)
oraoveeygq = adxzrpwrfa orleoisqvf (pietazwmtr, scmkaksjtw - jjqgyygoki)
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Regulation

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