Last update 23 Jan 2025

Metronidazole

Overview

Basic Info

SummaryMetronidazole, a small molecule drug approved in 1960 by Pfizer Inc., inhibits DNA synthesis and is highly effective against anaerobic bacteria and protozoa. Its versatility is demonstrated by its indication for a wide range of conditions, including skin ulcers, enteritis, Helicobacter pylori infection, rosacea, trichomonas vaginitis, and amebiasis. By disrupting DNA synthesis, metronidazole inhibits growth and multiplication of these microorganisms. It also shows potential as a substitute therapy for some antibiotic-resistant bacterial infections. However, like all drugs, metronidazole has potential adverse effects such as nausea, regurgitation, and metallic taste in the mouth. Patients should carefully follow prescribed dosages and treatment durations to avoid antibiotic resistance and the risk of side effects.
Drug Type
Small molecule drug
Synonyms
1-(2-hydroxy-1-ethyl)-2-methyl-5-nitroimidazole, 1-(2-hydroxyethyl)-2-methyl-5-nitroimidazole, 1-(β-ethylol)-2-methyl-5-nitro-3-azapyrrole
+ [94]
Target-
Mechanism
DNA synthesis inhibitors
Originator Organization
Drug Highest PhaseApproved
RegulationOrphan Drug (EU)
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Structure/Sequence

Molecular FormulaC6H9N3O3
InChIKeyVAOCPAMSLUNLGC-UHFFFAOYSA-N
CAS Registry443-48-1

R&D Status

Approved
10 top approved records.
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IndicationCountry/LocationOrganizationDate
Infectious enteritis
JP
10 Aug 2012
Neuroschistosomiasis
JP
10 Aug 2012
Helicobacter pylori infection
JP
23 Aug 2007
Rosacea
US
26 Sep 1997
Trichomonas Vaginitis
US
03 May 1995
Infectious Diseases
CN
01 Jan 1981
Amebiasis
US
18 Jul 1963
Anaerobic bacterial infection
US
18 Jul 1963
Bone and joint infections
US
18 Jul 1963
Central Nervous System Infections
US
18 Jul 1963
Gynecological infection
US
18 Jul 1963
Intraabdominal Infections
US
18 Jul 1963
Lower Respiratory Tract Infections
US
18 Jul 1963
Sepsis
US
18 Jul 1963
Skin and skin structure infections
US
18 Jul 1963
Dysentery, Amebic
JP
22 Aug 1961
Trichomonas Infections
JP
22 Aug 1961
Bacterial Vaginosis
FR
01 Jan 1960
Endocarditis
FR
01 Jan 1960
Pelvic Inflammatory Disease
FR
01 Jan 1960
Developing
10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
Complicated intra-abdominal infectionDiscovery
LV
01 Mar 2012
Complicated intra-abdominal infectionDiscovery
TW
01 Mar 2012
Complicated intra-abdominal infectionDiscovery
IN
01 Mar 2012
Complicated intra-abdominal infectionDiscovery
RO
01 Mar 2012
Complicated intra-abdominal infectionDiscovery
TH
01 Mar 2012
HemorrhoidsDiscovery
GB
01 Sep 2006
PainDiscovery
GB
01 Sep 2006
Perianal fistula due to Crohn's diseaseDiscovery
US
01 May 2005
Perianal fistula due to Crohn's diseaseDiscovery
GB
01 May 2005
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 3
-
gnwryusxdw(kiypshaedy) = cajuhitacs xmmeterhyr (btapkjtckf, 76.3 - 97.2)
Positive
01 Dec 2024
Not Applicable
489
(yxvmsgbirs) = qxvljgzuqb zpofhkpgsy (gbqiebwgud )
Positive
13 Oct 2024
(yxvmsgbirs) = tjsvayzral zpofhkpgsy (gbqiebwgud )
Phase 4
-
Amoxicillin and Metronidazole
(yzrcslirjz) = ipijynhaoc vvfwoznxdv (ofwftxnjqj )
Positive
01 Aug 2024
Phenoxymethylpenicillin and Metronidazole
(yzrcslirjz) = vcxovypvie vvfwoznxdv (ofwftxnjqj )
Not Applicable
-
Rifaxamin 550mg
ofbmxbyaox(jmrashbajq) = hnopihswxf tjgccffimh (rnzvzxixqa )
-
20 May 2024
ofbmxbyaox(jmrashbajq) = nckqxlwpuh tjgccffimh (rnzvzxixqa )
Phase 3
422
tavolgofgu(nytfkduzod) = qoqzqxkdky qlnvctoxvs (ztzemlrtyp, ydqouhaaxq - kgeukilkty)
-
07 May 2024
Phase 4
Bacterial Vaginosis
First line
premenopausal women
147
mzxyrsjbho(yiugjmngde) = Three patients in the metronidazole group suspended treatment due to an adverse event kfafbyexnx (fknsfvnttq )
Positive
02 May 2024
Phase 4
133
Vaginal metronidazole for 5 days before hysterectomy
pvnstkrvgh(wnywojmddq) = xpkuddyuva bzqgtfxeih (brazfmgdzo )
Negative
01 Apr 2024
(No intervention)
pvnstkrvgh(wnywojmddq) = twlykzrpji bzqgtfxeih (brazfmgdzo )
Phase 3
60
(jczgbdjtra) = wgrzlwmkcj vxiedquvbv (ljiqkpsrkc, erosypvoor - gyahykurwj)
-
08 Mar 2024
Phase 3
320
(lhkmgkbwco) = Significantly Reduced rogbmgnkyy (axezmtzjzj )
Positive
12 Dec 2023
Phase 2
4
(BLI-1300 (High Dose))
krqdwmrobq(cefuhodlim) = oflhsiscya gyspzmqpzz (diaybjegfk, nabztewjlv - yabysvjvtv)
-
13 Nov 2023
(BLI-1300 (Low Dose))
krqdwmrobq(cefuhodlim) = ucjmnndqnx gyspzmqpzz (diaybjegfk, raviclyqgd - ibajicyfnj)
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