MEBENDAZOLE

Details

Stereochemistry	ACHIRAL
Molecular Formula	C16H13N3O3
Molecular Weight	295.2927
Optical Activity	NONE
Defined Stereocenters	0 / 0
E/Z Centers	0
Charge	0

SHOW SMILES / InChI

Structure Search

SMILES

COC(=O)NC1=NC2=C(N1)C=C(C=C2)C(=O)C3=CC=CC=C3

InChI

InChIKey=OPXLLQIJSORQAM-UHFFFAOYSA-N

InChI=1S/C16H13N3O3/c1-22-16(21)19-15-17-12-8-7-11(9-13(12)18-15)14(20)10-5-3-2-4-6-10/h2-9H,1H3,(H2,17,18,19,21)

HIDE SMILES / InChI

Molecular Formula	C16H13N3O3
Molecular Weight	295.2927
Charge	0
Count

Stereochemistry	ACHIRAL
Additional Stereochemistry	No
Defined Stereocenters	0 / 0
E/Z Centers	0
Optical Activity	NONE

Description
Sources: https://www.drugs.com/pro/mebendazole.html

Mebendazole, known as Emverm is a (synthetic) broad-spectrum anthelmintic that acts by interfering with carbohydrate metabolism and inhibiting polymerization of microtubules. The loss of the cytoplasmic microtubules leads to impaired uptake of glucose by the larval and adult stages of the susceptible parasites, and depletes their glycogen stores. Degenerative changes in the endoplasmic reticulum, the mitochondria of the germinal layer, and the subsequent release of lysosomes result in decreased production of adenosine triphosphate (ATP), which is the energy required for the survival of the helminth. Due to diminished energy production, the parasite is immobilized and eventually dies. Emverm tablets are used for the treatment of Enterobius vermicularis (pinworm), Trichuris trichiura (whipworm), Ascaris lumbricoides (common roundworm), Ancylostoma duodenale (common hookworm), Necator americanus (American hookworm) in single or mixed infections. All metabolites are devoid of anthelmintic activity. In man, approximately 2% of administered mebendazole is excreted in urine and the remainder in the feces as unchanged drug or a primary metabolite. Preliminary evidence suggests that cimetidine inhibits mebendazole metabolism and may result in an increase in plasma concentrations drug. Mebendazole sometimes causes diarrhea, abdominal pain, and elevated liver enzymes. In rare cases, it has been associated with a dangerously low white blood cell count, low platelet count, and hair loss, with a risk of agranulocytosis in rare cases

Originator

Approval Year

Targets

Primary Target	Pharmacology	Condition	Potency
Tubulin 69 Target ID: CHEMBL2364705 Sources: https://www.ncbi.nlm.nih.gov/pubmed/8139621	Inhibitor 8504

Conditions

Condition	Modality	Highest Phase	Product
Enterobius vermicularis (pinworm) infection 1 Sources: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=13631e94-269d-45db-a433-2aa4f8d465c6	Curative	Approved 8583	EMVERM Approved Use Emverm™ (mebendazole) chewable tablet, USP is indicated for the treatment of Enterobius vermicularis (pinworm), Trichuris trichiura (whipworm), Ascaris lumbricoides (common roundworm), Ancylostoma duodenale (common hookworm), Necator americanus (American hookworm) in single or mixed infections. Launch Date 1995
Trichuriasis infection 6 Sources: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=13631e94-269d-45db-a433-2aa4f8d465c6	Curative	Approved 8583	EMVERM Approved Use Emverm™ (mebendazole) chewable tablet, USP is indicated for the treatment of Enterobius vermicularis (pinworm), Trichuris trichiura (whipworm), Ascaris lumbricoides (common roundworm), Ancylostoma duodenale (common hookworm), Necator americanus (American hookworm) in single or mixed infections. Launch Date 1995
Ascaris lumbricoides infection 1 Sources: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=13631e94-269d-45db-a433-2aa4f8d465c6	Curative	Approved 8583	EMVERM Approved Use Emverm™ (mebendazole) chewable tablet, USP is indicated for the treatment of Enterobius vermicularis (pinworm), Trichuris trichiura (whipworm), Ascaris lumbricoides (common roundworm), Ancylostoma duodenale (common hookworm), Necator americanus (American hookworm) in single or mixed infections. Launch Date 1995
Necator americanus infection 1 Sources: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=13631e94-269d-45db-a433-2aa4f8d465c6	Curative	Approved 8583	EMVERM Approved Use Emverm™ (mebendazole) chewable tablet, USP is indicated for the treatment of Enterobius vermicularis (pinworm), Trichuris trichiura (whipworm), Ascaris lumbricoides (common roundworm), Ancylostoma duodenale (common hookworm), Necator americanus (American hookworm) in single or mixed infections. Launch Date 1995

C_max

Value	Dose	Co-administered	Analyte	Population
14 ng/mL DRUG LABEL https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/208398s000lbl.pdf	500 mg single, oral dose: 500 mg route of administration: Oral experiment type: SINGLE co-administered:		MEBENDAZOLE plasma	Homo sapiens population: HEALTHY age: ADULT sex: UNKNOWN food status: FASTED
69.5 ng/mL EXPERIMENT https://www.ncbi.nlm.nih.gov/pubmed/7094986	10 mg/kg single, oral dose: 10 mg/kg route of administration: Oral experiment type: SINGLE co-administered:		MEBENDAZOLE plasma	Homo sapiens population: UNHEALTHY age: ADULT sex: FEMALE / MALE food status: FED

AUC

Value	Dose	Co-administered	Analyte	Population
175 ng × h/mL DRUG LABEL https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/208398s000lbl.pdf	500 mg single, oral dose: 500 mg route of administration: Oral experiment type: SINGLE co-administered:		MEBENDAZOLE plasma	Homo sapiens population: HEALTHY age: ADULT sex: UNKNOWN food status: FASTED
280.2 ng × h/mL EXPERIMENT https://www.ncbi.nlm.nih.gov/pubmed/7094986	10 mg/kg single, oral dose: 10 mg/kg route of administration: Oral experiment type: SINGLE co-administered:		MEBENDAZOLE plasma	Homo sapiens population: UNHEALTHY age: ADULT sex: FEMALE / MALE food status: FED

T_1/2

Value	Dose	Co-administered	Analyte	Population
3.6 h EXPERIMENT https://www.ncbi.nlm.nih.gov/pubmed/7094986	10 mg/kg single, oral dose: 10 mg/kg route of administration: Oral experiment type: SINGLE co-administered:		MEBENDAZOLE plasma	Homo sapiens population: UNHEALTHY age: ADULT sex: FEMALE / MALE food status: FED

F_unbound

Value	Dose	Co-administered	Analyte	Population
7.5% DRUG LABEL https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/208398s000lbl.pdf	500 mg single, oral dose: 500 mg route of administration: Oral experiment type: SINGLE co-administered:		MEBENDAZOLE plasma	Homo sapiens population: HEALTHY age: ADULT sex: UNKNOWN food status: FASTED

Doses

Dose	Population	Adverse events
1600 mg 3 times / day multiple, oral MTD Dose: 1600 mg, 3 times / day Route: oral Route: multiple Dose: 1600 mg, 3 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/32400117	unhealthy, 25-68 Health Status: unhealthy Age Group: 25-68 Sex: M+F Sources: https://pubmed.ncbi.nlm.nih.gov/32400117	DLT: Neutropenia, Thrombocytopenia... Dose limiting toxicities: Neutropenia (grade 4, 25%) Thrombocytopenia (grade 3, 25%) Sources: https://pubmed.ncbi.nlm.nih.gov/32400117
500 mg single, oral Recommended Dose: 500 mg Route: oral Route: single Dose: 500 mg Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/208398s000lbl.pdf	unhealthy Health Status: unhealthy Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/208398s000lbl.pdf	Disc. AE: Convulsions, Neutropenia... AEs leading to discontinuation/dose reduction: Convulsions Neutropenia Agranulocytosis Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/208398s000lbl.pdf
500 mg single, oral Recommended Dose: 500 mg Route: oral Route: single Dose: 500 mg Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/208398s000lbl.pdf	unhealthy Health Status: unhealthy Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/208398s000lbl.pdf	Disc. AE: Stevens-Johnson syndrome, Toxic epidermal necrolysis... AEs leading to discontinuation/dose reduction: Stevens-Johnson syndrome (serious) Toxic epidermal necrolysis (serious) Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/208398s000lbl.pdf

AEs

AE	Significance	Dose	Population
Thrombocytopenia	grade 3, 25% DLT	1600 mg 3 times / day multiple, oral MTD Dose: 1600 mg, 3 times / day Route: oral Route: multiple Dose: 1600 mg, 3 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/32400117	unhealthy, 25-68 Health Status: unhealthy Age Group: 25-68 Sex: M+F Sources: https://pubmed.ncbi.nlm.nih.gov/32400117
Neutropenia	grade 4, 25% DLT	1600 mg 3 times / day multiple, oral MTD Dose: 1600 mg, 3 times / day Route: oral Route: multiple Dose: 1600 mg, 3 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/32400117	unhealthy, 25-68 Health Status: unhealthy Age Group: 25-68 Sex: M+F Sources: https://pubmed.ncbi.nlm.nih.gov/32400117
Agranulocytosis	Disc. AE	500 mg single, oral Recommended Dose: 500 mg Route: oral Route: single Dose: 500 mg Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/208398s000lbl.pdf	unhealthy Health Status: unhealthy Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/208398s000lbl.pdf
Convulsions	Disc. AE	500 mg single, oral Recommended Dose: 500 mg Route: oral Route: single Dose: 500 mg Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/208398s000lbl.pdf	unhealthy Health Status: unhealthy Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/208398s000lbl.pdf
Neutropenia	Disc. AE	500 mg single, oral Recommended Dose: 500 mg Route: oral Route: single Dose: 500 mg Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/208398s000lbl.pdf	unhealthy Health Status: unhealthy Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/208398s000lbl.pdf
Stevens-Johnson syndrome	serious Disc. AE	500 mg single, oral Recommended Dose: 500 mg Route: oral Route: single Dose: 500 mg Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/208398s000lbl.pdf	unhealthy Health Status: unhealthy Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/208398s000lbl.pdf
Toxic epidermal necrolysis	serious Disc. AE	500 mg single, oral Recommended Dose: 500 mg Route: oral Route: single Dose: 500 mg Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/208398s000lbl.pdf	unhealthy Health Status: unhealthy Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/208398s000lbl.pdf

Overview

CYP3A4	CYP2C9	CYP2D6	hERG
			inhibitor 2217

OverviewOther

Other Inhibitor	Other Substrate	Other Inducer
P-gp 1741 CYP3A 227 UGT 45 CYP 110 FMO 7	P-gp 2052 CYP450 59	CYP1A1 151 CYP3A 142 CYP1A 59

Drug as perpetrator

Target	Modality	Activity	Clinical evidence
CYP1A1 272	inducer 1966 Sources: https://www.accessdata.fda.gov/drugsatfda_docs/nda/2016/208398Orig1s000ClinPharmR.pdf Page: 12.0	likely	yes (co-administration study) Comment: ritonavir decreased mebendazole auc 43% and cmax 41% Sources: https://www.accessdata.fda.gov/drugsatfda_docs/nda/2016/208398Orig1s000ClinPharmR.pdf Page: 12.0
UGT 70	inhibitor 4027 Sources: https://www.sciencedirect.com/science/article/abs/pii/S0034528806001974 Page: 23.0	minor
CYP 150	inhibitor 4027 Sources: https://www.sciencedirect.com/science/article/abs/pii/S0034528806001974 Page: 23.0	no
CYP1A 122	inducer 1966 Sources: https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1365-2885.2004.00557.x Page: abstract	no
CYP3A 317	inducer 1966 Sources: https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1365-2885.2004.00557.x Page: abstract	no
FMO 7	inhibitor 4027 Sources: https://www.sciencedirect.com/science/article/abs/pii/S0034528806001974 Page: 23.0	no
P-gp 1932	inhibitor 4027 Sources: https://www.sciencedirect.com/science/article/pii/S088723331730156X Page: 89.0	no
CYP3A 317	inhibitor 4027 Sources: https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1365-2885.2004.00557.x Page: abstract	yes

Drug as victim

Target	Modality	Activity	Metabolite	Clinical evidence
CYP450 59	substrate 4014 Sources: https://link.springer.com/article/10.1007/s00228-009-0683-y Page: 1000.0	likely
P-gp 2052	substrate 4014 Sources: https://www.sciencedirect.com/science/article/pii/S088723331730156X Page: 89.0	likely

Tox targets

Target	Modality	Activity	Metabolite	Clinical evidence
hERG 2263	inhibitor 2237 Sources: https://www.accessdata.fda.gov/drugsatfda_docs/nda/2016/208398Orig1s000SumR.pdf Page: 11.0

Sourcing

Vendor/Aggregator	ID	URL
ChEBI	CHEBI:6704	https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:6704
ChemicalBook	CB8700094	https://www.chemicalbook.com/ChemicalProductProperty_EN_CB8700094
eMolecules	511302	https://www.emolecules.com/cgi-bin/more?vid=511302
eMolecules	740153	https://www.emolecules.com/cgi-bin/more?vid=740153
MolPort	MolPort-000-765-625	https://www.molport.com/shop/molecule-link/MolPort-000-765-625
MolPort	MolPort-001-889-615	https://www.molport.com/shop/molecule-link/MolPort-001-889-615
ZINC	ZINC000000121541	http://zinc15.docking.org/substances/ZINC000000121541

PubMed

Title	Date	PubMed
Evaluation of the efficacy of pyrantel-oxantel for the treatment of soil-transmitted nematode infections.	2003-03-11	12625151
Case report: intraocular localization of Mansonella perstans in a patient from south Chad.	2003-03-11	12625144
European echinococcosis registry: human alveolar echinococcosis, Europe, 1982-2000.	2003-03	12643830
Outbreak of Stevens-Johnson syndrome/toxic epidermal necrolysis associated with mebendazole and metronidazole use among Filipino laborers in Taiwan.	2003-03	12604501
Pharmacokinetic evaluation of guar gum-based colon-targeted drug delivery systems of mebendazole in healthy volunteers.	2003-02-14	12586507
[An outbreak of trichinosis in the Kaliningrad region].	2003-02-01	12557592
Developing a discriminating dissolution test for three mebendazole polymorphs based on solubility differences.	2003-02	12641328
Benzimidazole treatment of cystic echinococcosis.	2003-02	12606103
Hydatid cyst of the liver-criteria for the selection of appropriate treatment.	2003-02	12606102
Ascaris lumbricoides?	2003-01	12602732
Pregnancy outcome after gestational exposure to mebendazole: a prospective controlled cohort study.	2003-01	12548230
Use of anthelminthic drugs during pregnancy.	2003-01	12548188
In vitro studies on the effects of flubendazole against Toxocara canis and Ascaris suum.	2003-01	12474046
Laparoscopic treatment of hepatic hydatid cysts with a liposuction device.	2002-12-26	12500831
Evaluation of the Integrated Management of Childhood Illness guidelines for treatment of intestinal helminth infections among sick children aged 2-4 years in western Kenya.	2002-12-12	12474486
Oxidative, heat and anthelminthic stress responses in four species of Trichinella: comparative study.	2002-12-01	12410594
One-stage operation for hydatid disease of lung and liver: principles of treatment.	2002-12	12447189
[Adult ascaris in the intrahepatic bile ducts].	2002-11-09	12467152
Surgery and postoperative mebendazole in the treatment of hydatid disease.	2002-11	12506313
The anthelmintic drug mebendazole induces mitotic arrest and apoptosis by depolymerizing tubulin in non-small cell lung cancer cells.	2002-11	12479701
Efficacy of alebendazole and mebendazole in the treatment of Ascaris and Trichuris infections.	2002-10	12596653
Soil-transmitted nematode infections and mebendazole treatment in Mafia Island schoolchildren.	2002-10	12537633
A randomized placebo-controlled trial of mebendazole for halitosis.	2002-10	12361444
New policies for using anthelmintics in high risk groups.	2002-09	12377247
Mebendazole elicits a potent antitumor effect on human cancer cell lines both in vitro and in vivo.	2002-09	12231542
Echinococcal cysts of the liver: epidemiology, imaging classification, diagnosis and management.	2002-08-20	12184460
Soil transmitted nematodes in children in Buea Health District of Cameroon.	2002-08	12638847
Two cases of imported gnathostomiasis in Spanish women.	2002-08	12226695
Opinion on the diagnosis and treatment of human trichinellosis.	2002-08	12150691
Clinicopathological conference: a simple case of abdominal pain.	2002-07	12093711
Is the exclusion of children under 24 months from anthelmintic treatment justifiable?	2002-06-12	12055814
Strongyloides stercoralis infection with bloody pericardial effusion in a non-immunosuppressed patient.	2002-06	12074284
Surgery and postoperative mebendazole in the treatment of hydatid disease.	2002-05	12070583
Infectious diseases of refugees and immigrants: hookworm.	2002-05	12051141
Anthelmintics: a review.	2002-04-20	11963321
Musculoskeletal hydatid disease: a report of 13 cases.	2002-04	12079024
Maxillofacial hydatid cyst.	2002-04	11928109
[Neurotrichinosis].	2002-03-06	11876013
Nitazoxanide compared with quinfamide and mebendazole in the treatment of helminthic infections and intestinal protozoa in children.	2002-03	12139216
Chemotherapeutic approaches to nematodes: current knowledge and outlook.	2002-03	11954915
Clinical manifestations of strongyloidiasis in southern Taiwan.	2002-03	11950117
Effect of a single dose (600 mg) of albendazole on Loa loa microfilaraemia.	2002-03	11938697
Pulmonary hydatidosis--a surgical experience.	2002-01	12206337
[Target chemotherapy of intestinal nematode infection in area with low endemicity].	2002	12568001
Ecchymoses: an unusual manifestation of toxocariasis in children.	2001-12	12164030
[Toxocariasis].	2001-12	11908154
[Mass chemotherapy for intestinal helminth infections in primary and secondary school students in Maoming city].	2001	12571983
[Efficacy of ablendazole emulsion in treatment of 212 patients with cystic echinococcosis].	2001	12571934
[Vomiting in an immigrant during early pregnancy].	2001	12183818
Primary echinococcal disease of the kidney: the case for a more conservative approach.	2001	11989550

Patents

Sample Use Guides

In Vivo Use Guide

Pinworm (enterobiasis): 1 tablet, once; Whipworm (trichuriasis): 1 tablet morning and evening for 3 consecutive days; Common Roundworm (ascariasis): 1 tablet morning and evening for 3 consecutive days; Hookworm: 1 tablet morning and evening for 3 consecutive days

Route of Administration: Oral

In Vitro Use Guide

Unknown

Substance Class	Chemical Created by `admin` on `Wed Apr 02 06:59:41 GMT 2025` Edited by `admin` on `Wed Apr 02 06:59:41 GMT 2025`
Record UNII	81G6I5V05I
Record Status	`Validated (UNII)`
Record Version

Download

Name

Type

Language

MEBENDAZOLE

Official Name

English

MEBENDAZOLE POLYMORPH C

Preferred Name

English

mebendazole [INN]

Common Name

English

MEBENDAZOLE [GREEN BOOK]

Common Name

English

MEBENDAZOLE [USP MONOGRAPH]

Common Name

English

MEBENDAZOLE [JAN]

Common Name

English

NSC-184849

Code

English

MEBENDAZOLE [EP MONOGRAPH]

Common Name

English

MEBENDAZOLE [HSDB]

Common Name

English

CARBAMIC ACID, (5-BENZOYL-1H-BENZIMIDAZOL-2-YL)-, METHYL ESTER

Common Name

English

R-17635

Code

English

MEBENDAZOLE [WHO-IP]

Common Name

English

MEBENDAZOLE [USP IMPURITY]

Common Name

English

VERMICIDIN

Common Name

English

MEBENDAZOLE [ORANGE BOOK]

Common Name

English

Mebendazole [WHO-DD]

Common Name

English

ZHIHUANQING

Common Name

English

VERMOX

Brand Name

English

R 17,635

Code

English

MEBENDAZOLE [USP-RS]

Common Name

English

OVITELMIN

Common Name

English

PANTELMIN

Common Name

English

MEBENDAZOLE [VANDF]

Common Name

English

MEBENDAZOLE [USAN]

Common Name

English

MEBENDAZOLE [MART.]

Common Name

English

Methyl 5-benzoyl-2-benzimidazolecarbamate

Common Name

English

MEBENDAZOLE POLYMORPH C [USP-RS]

Common Name

English

MEBENDAZOLUM [WHO-IP]

Common Name

English

Classification Tree Code System Code

CFR

21 CFR 520.1320