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Identification
NameAlbendazole
Accession NumberDB00518  (APRD00782)
TypeSmall Molecule
GroupsApproved, Vet Approved
Description

A benzimidazole broad-spectrum anthelmintic structurally related to mebendazole that is effective against many diseases. (From Martindale, The Extra Pharmacopoeia, 30th ed, p38)

Structure
Thumb
Synonyms
(5-(Propylthio)-1H-benzimidazol-2-yl)carbamic acid methyl ester
5-(Propylthio)-2-carbomethoxyaminobenzimidazole
Albendazol
Albendazol
Albendazole
Albendazolum
Albenza
Eskazole
O-Methyl N-(5-(propylthio)-2-benzimidazolyl)carbamate
Proftril
Ricobendazole
Rycobendazole
Valbazen
Zentel
External Identifiers
  • RS-8852
  • SKF 62979
Prescription Products
NameDosageStrengthRouteLabellerMarketing StartMarketing End
Albenzatablet, film coated200 mg/1oralAmedra Pharmaceuticals LLC1996-06-112016-04-05Us
Albenzatablet, film coated200 mg/1oralDepartment Of State Health Services, Pharmacy Branch1996-06-112016-04-05Us
Albenzatablet, film coated200 mg/1oralRx Pak Division Of Mc Kesson Corporation1996-06-112016-04-05Us
Generic Prescription ProductsNot Available
Over the Counter ProductsNot Available
International Brands
NameCompany
AbentelAristopharma
ABZIndoco
AcurePharmix
AdazolRoemmers
ALRadicura
BandVensat
BandyMankind
BazoleNeutro Pharma
Ben-AAcme
BenrodInvision
BentilAlliance
BenzolMercury Lab
BenzoleFlamingo Pharmacueticals
BevindazolVincenti
BiwomZydus
BruzolBruluart
BuxolBuffington's
CentalBrisafarma
ChampsCCM
CicloparWeider
CidazoleJuggat
ClearwormInvision
DalbenKrka
DesparIcofarma
EskazoleGlaxoSmithKline
ZentelGlaxoSmithKline
ZolbenSanofi-Aventis
Brand mixturesNot Available
SaltsNot Available
Categories
UNIIF4216019LN
CAS number54965-21-8
WeightAverage: 265.331
Monoisotopic: 265.088497429
Chemical FormulaC12H15N3O2S
InChI KeyInChIKey=HXHWSAZORRCQMX-UHFFFAOYSA-N
InChI
InChI=1S/C12H15N3O2S/c1-3-6-18-8-4-5-9-10(7-8)14-11(13-9)15-12(16)17-2/h4-5,7H,3,6H2,1-2H3,(H2,13,14,15,16)
IUPAC Name
methyl N-[6-(propylsulfanyl)-1H-1,3-benzodiazol-2-yl]carbamate
SMILES
CCCSC1=CC2=C(C=C1)N=C(NC(=O)OC)N2
Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as benzimidazoles. These are organic compounds containing a benzene ring fused to an imidazole ring (five member ring containing a nitrogen atom, 4 carbon atoms, and two double bonds).
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassBenzimidazoles
Sub ClassNot Available
Direct ParentBenzimidazoles
Alternative Parents
Substituents
  • Benzimidazole
  • Alkylarylthioether
  • Benzenoid
  • Aminoimidazole
  • Heteroaromatic compound
  • Imidazole
  • Azole
  • Azacycle
  • Sulfenyl compound
  • Thioether
  • Monocarboxylic acid or derivatives
  • Hydrocarbon derivative
  • Organosulfur compound
  • Organooxygen compound
  • Organonitrogen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Pharmacology
IndicationFor the treatment of parenchymal neurocysticercosis due to active lesions caused by larval forms of the pork tapeworm, Taenia solium and for the treatment of cystic hydatid disease of the liver, lung, and peritoneum, caused by the larval form of the dog tapeworm, Echinococcus granulosus.
PharmacodynamicsAlbendazole is a broad-spectrum anthelmintic. The principal mode of action for albendazole is by its inhibitory effect on tubulin polymerization which results in the loss of cytoplasmic microtubules.
Mechanism of actionAlbendazole causes degenerative alterations in the tegument and intestinal cells of the worm by binding to the colchicine-sensitive site of tubulin, thus inhibiting its polymerization or assembly into 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.
Related Articles
AbsorptionPoorly absorbed from the gastrointestinal tract due to its low aqueous solubility. Oral bioavailability appears to be enhanced when coadministered with a fatty meal (estimated fat content 40 g)
Volume of distributionNot Available
Protein binding70% bound to plasma protein
Metabolism

Hepatic. Rapidly converted in the liver to the primary metabolite, albendazole sulfoxide, which is further metabolized to albendazole sulfone and other primary oxidative metabolites that have been identified in human urine.

SubstrateEnzymesProduct
Albendazole
Not Available
albendazole sulfoneDetails
Albendazole
Not Available
albendazole sulfoxideDetails
Route of eliminationAlbendazole is rapidly converted in the liver to the primary metabolite, albendazole sulfoxide, which is further metabolized to albendazole sulfone and other primary oxidative metabolites that have been identified in human urine. Urinary excretion of albendazole sulfoxide is a minor elimination pathway with less than 1% of the dose recovered in the urine. Biliary elimination presumably accounts for a portion of the elimination as evidenced by biliary concentrations of albendazole sulfoxide similar to those achieved in plasma.
Half lifeTerminal elimination half-life ranges from 8 to 12 hours (single dose, 400mg).
ClearanceNot Available
ToxicitySymptoms of overdose include elevated liver enzymes, headaches, hair loss, low levels of white blood cells (neutropenia), fever, and itching.
Affected organisms
  • Helminthic Microorganisms
PathwaysNot Available
SNP Mediated EffectsNot Available
SNP Mediated Adverse Drug ReactionsNot Available
ADMET
Predicted ADMET features
PropertyValueProbability
Human Intestinal Absorption+0.9944
Blood Brain Barrier+0.9381
Caco-2 permeable-0.8957
P-glycoprotein substrateNon-substrate0.6637
P-glycoprotein inhibitor INon-inhibitor0.6928
P-glycoprotein inhibitor IINon-inhibitor0.6089
Renal organic cation transporterNon-inhibitor0.8433
CYP450 2C9 substrateNon-substrate0.7742
CYP450 2D6 substrateSubstrate0.8918
CYP450 3A4 substrateNon-substrate0.6147
CYP450 1A2 substrateInhibitor0.9106
CYP450 2C9 inhibitorNon-inhibitor0.907
CYP450 2D6 inhibitorNon-inhibitor0.9231
CYP450 2C19 inhibitorNon-inhibitor0.9025
CYP450 3A4 inhibitorNon-inhibitor0.8347
CYP450 inhibitory promiscuityLow CYP Inhibitory Promiscuity0.8037
Ames testNon AMES toxic0.7894
CarcinogenicityNon-carcinogens0.9334
BiodegradationNot ready biodegradable1.0
Rat acute toxicity2.0752 LD50, mol/kg Not applicable
hERG inhibition (predictor I)Weak inhibitor0.9707
hERG inhibition (predictor II)Non-inhibitor0.8549
ADMET data is predicted using admetSAR, a free tool for evaluating chemical ADMET properties. (23092397 )
Pharmacoeconomics
Manufacturers
  • Glaxosmithkline llc
Packagers
Dosage forms
FormRouteStrength
Tablet, film coatedoral200 mg/1
Prices
Unit descriptionCostUnit
Albenza 200 mg tablet1.91USD tablet
Albendazole powder0.41USD g
DrugBank does not sell nor buy drugs. Pricing information is supplied for informational purposes only.
PatentsNot Available
Properties
StateSolid
Experimental Properties
PropertyValueSource
melting point208-210Gyurik, R.J. and Theodorides, VJ.; US. Patent 3,915,986; October 28,1975; assigned to Smith Kline Corp.
water solubilityPractically insolubleNot Available
logP2.7Not Available
Predicted Properties
PropertyValueSource
Water Solubility0.0228 mg/mLALOGPS
logP3.22ALOGPS
logP3.2ChemAxon
logS-4.1ALOGPS
pKa (Strongest Acidic)9.51ChemAxon
pKa (Strongest Basic)4.27ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area67.01 Å2ChemAxon
Rotatable Bond Count5ChemAxon
Refractivity73.01 m3·mol-1ChemAxon
Polarizability29.3 Å3ChemAxon
Number of Rings2ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Mass Spec (NIST)Not Available
Spectra
Spectrum TypeDescriptionSplash Key
1D NMR1H NMR SpectrumNot Available
1D NMR13C NMR SpectrumNot Available
References
Synthesis Reference

Gyurik, R.J. and Theodorides, VJ.; US. Patent 3,915,986; October 28,1975; assigned to
Smith Kline Corp.

US3915986
General References
  1. Molina AJ, Merino G, Prieto JG, Real R, Mendoza G, Alvarez AI: Absorption and metabolism of albendazole after intestinal ischemia/reperfusion. Eur J Pharm Sci. 2007 May;31(1):16-24. Epub 2007 Feb 6. [PubMed:17350811 ]
  2. Oxberry ME, Reynoldson JA, Thompson RC: The binding and distribution of albendazole and its principal metabolites in Giardia duodenalis. J Vet Pharmacol Ther. 2000 Jun;23(3):113-20. [PubMed:11110097 ]
  3. Ramirez T, Benitez-Bribiesca L, Ostrosky-Wegman P, Herrera LA: In vitro effects of albendazole and its metabolites on the cell proliferation kinetics and micronuclei frequency of stimulated human lymphocytes. Arch Med Res. 2001 Mar-Apr;32(2):119-22. [PubMed:11343808 ]
  4. Haque A, Hollister WS, Willcox A, Canning EU: The antimicrosporidial activity of albendazole. J Invertebr Pathol. 1993 Sep;62(2):171-7. [PubMed:8228321 ]
External Links
ATC CodesP02CA03
AHFS CodesNot Available
PDB EntriesNot Available
FDA labelNot Available
MSDSDownload (74.4 KB)
Interactions
Drug Interactions
Drug
CarbamazepineThe serum concentration of the active metabolites of Albendazole can be reduced when Albendazole is used in combination with Carbamazepine resulting in a loss in efficacy.
ChloroquineThe serum concentration of Albendazole can be decreased when it is combined with Chloroquine.
PhenobarbitalThe serum concentration of the active metabolites of Albendazole can be reduced when Albendazole is used in combination with Phenobarbital resulting in a loss in efficacy.
PhenytoinThe serum concentration of the active metabolites of Albendazole can be reduced when Albendazole is used in combination with Phenytoin resulting in a loss in efficacy.
Food InteractionsNot Available

Targets

Kind
Protein
Organism
Pig roundworm
Pharmacological action
yes
Actions
inhibitor
General Function:
Structural constituent of cytoskeleton
Specific Function:
Tubulin is the major constituent of microtubules. It binds two moles of GTP, one at an exchangeable site on the beta chain and one at a non-exchangeable site on the alpha chain.
Gene Name:
Not Available
Uniprot ID:
F1L7U3
Molecular Weight:
51336.46 Da
References
  1. Solana HD, Sallovitz JM, Lanusse CE, Rodriguez JA: Enantioselective binding of albendazole sulphoxide to cytosolic proteins from helminth parasites. Methods Find Exp Clin Pharmacol. 2002 Jan-Feb;24(1):7-13. [PubMed:11980387 ]
Kind
Protein
Organism
Human
Pharmacological action
no
Actions
inhibitor
General Function:
Structural molecule activity
Specific Function:
Tubulin is the major constituent of microtubules. It binds two moles of GTP, one at an exchangeable site on the beta chain and one at a non-exchangeable site on the alpha chain.
Gene Name:
TUBA1A
Uniprot ID:
Q71U36
Molecular Weight:
50135.25 Da
References
  1. Ramirez T, Benitez-Bribiesca L, Ostrosky-Wegman P, Herrera LA: In vitro effects of albendazole and its metabolites on the cell proliferation kinetics and micronuclei frequency of stimulated human lymphocytes. Arch Med Res. 2001 Mar-Apr;32(2):119-22. [PubMed:11343808 ]
  2. Chu SW, Badar S, Morris DL, Pourgholami MH: Potent inhibition of tubulin polymerisation and proliferation of paclitaxel-resistant 1A9PTX22 human ovarian cancer cells by albendazole. Anticancer Res. 2009 Oct;29(10):3791-6. [PubMed:19846910 ]
  3. Berman HM, Westbrook J, Feng Z, Gilliland G, Bhat TN, Weissig H, Shindyalov IN, Bourne PE: The Protein Data Bank. Nucleic Acids Res. 2000 Jan 1;28(1):235-42. [PubMed:10592235 ]
Kind
Protein
Organism
Human
Pharmacological action
no
Actions
inhibitor
General Function:
Unfolded protein binding
Specific Function:
Tubulin is the major constituent of microtubules. It binds two moles of GTP, one at an exchangeable site on the beta chain and one at a non-exchangeable site on the alpha chain.
Gene Name:
TUBB4B
Uniprot ID:
P68371
Molecular Weight:
49830.72 Da
References
  1. Solana HD, Sallovitz JM, Lanusse CE, Rodriguez JA: Enantioselective binding of albendazole sulphoxide to cytosolic proteins from helminth parasites. Methods Find Exp Clin Pharmacol. 2002 Jan-Feb;24(1):7-13. [PubMed:11980387 ]
  2. Chu SW, Badar S, Morris DL, Pourgholami MH: Potent inhibition of tubulin polymerisation and proliferation of paclitaxel-resistant 1A9PTX22 human ovarian cancer cells by albendazole. Anticancer Res. 2009 Oct;29(10):3791-6. [PubMed:19846910 ]
  3. Berman HM, Westbrook J, Feng Z, Gilliland G, Bhat TN, Weissig H, Shindyalov IN, Bourne PE: The Protein Data Bank. Nucleic Acids Res. 2000 Jan 1;28(1):235-42. [PubMed:10592235 ]
Kind
Protein
Organism
Shewanella oneidensis (strain MR-1)
Pharmacological action
unknown
Actions
inhibitor
General Function:
Succinate dehydrogenase activity
Specific Function:
Catalyzes fumarate reduction using artificial electron donors such as methyl viologen. The physiological reductant is unknown, but evidence indicates that flavocytochrome c participates in electron transfer from formate to fumarate and possibly also to trimethylamine oxide (TMAO). This enzyme is essentially unidirectional (By similarity).
Gene Name:
Not Available
Uniprot ID:
P83223
Molecular Weight:
62447.475 Da
References
  1. Barrowman MM, Marriner SE, Bogan JA: The fumarate reductase system as a site of anthelmintic attack in Ascaris suum. Biosci Rep. 1984 Oct;4(10):879-83. [PubMed:6518278 ]

Enzymes

Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
substrate
General Function:
Vitamin d3 25-hydroxylase activity
Specific Function:
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It performs a variety of oxidation reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1'-hydroxylation and midazolam 4-hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiot...
Gene Name:
CYP3A4
Uniprot ID:
P08684
Molecular Weight:
57342.67 Da
References
  1. Preissner S, Kroll K, Dunkel M, Senger C, Goldsobel G, Kuzman D, Guenther S, Winnenburg R, Schroeder M, Preissner R: SuperCYP: a comprehensive database on Cytochrome P450 enzymes including a tool for analysis of CYP-drug interactions. Nucleic Acids Res. 2010 Jan;38(Database issue):D237-43. doi: 10.1093/nar/gkp970. Epub 2009 Nov 24. [PubMed:19934256 ]
Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
inducer
General Function:
Vitamin d 24-hydroxylase activity
Specific Function:
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics.
Gene Name:
CYP1A1
Uniprot ID:
P04798
Molecular Weight:
58164.815 Da
References
  1. Preissner S, Kroll K, Dunkel M, Senger C, Goldsobel G, Kuzman D, Guenther S, Winnenburg R, Schroeder M, Preissner R: SuperCYP: a comprehensive database on Cytochrome P450 enzymes including a tool for analysis of CYP-drug interactions. Nucleic Acids Res. 2010 Jan;38(Database issue):D237-43. doi: 10.1093/nar/gkp970. Epub 2009 Nov 24. [PubMed:19934256 ]
Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
substrateinhibitorinducer
General Function:
Oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen
Specific Function:
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Most active in catalyzing 2-hydroxylation. Caffeine is metabolized primarily by cytochrome CYP1A2 in the liver through an initial N...
Gene Name:
CYP1A2
Uniprot ID:
P05177
Molecular Weight:
58293.76 Da
References
  1. Preissner S, Kroll K, Dunkel M, Senger C, Goldsobel G, Kuzman D, Guenther S, Winnenburg R, Schroeder M, Preissner R: SuperCYP: a comprehensive database on Cytochrome P450 enzymes including a tool for analysis of CYP-drug interactions. Nucleic Acids Res. 2010 Jan;38(Database issue):D237-43. doi: 10.1093/nar/gkp970. Epub 2009 Nov 24. [PubMed:19934256 ]

Transporters

Kind
Protein
Organism
Human
Pharmacological action
unknown
Actions
inhibitor
General Function:
Xenobiotic-transporting atpase activity
Specific Function:
Energy-dependent efflux pump responsible for decreased drug accumulation in multidrug-resistant cells.
Gene Name:
ABCB1
Uniprot ID:
P08183
Molecular Weight:
141477.255 Da
References
  1. Merino G, Alvarez AI, Prieto JG, Kim RB: The anthelminthic agent albendazole does not interact with p-glycoprotein. Drug Metab Dispos. 2002 Apr;30(4):365-9. [PubMed:11901088 ]
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Drug created on June 13, 2005 07:24 / Updated on April 15, 2016 11:26