Albendazole (albendazole)

Anthelmintics Oral Tablet

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Last reviewed · Source: First Databank (FDB) drug data

Overview

Albendazole, a benzimidazole derivative, is an anthelmintic agent.

Albendazole is a synthetic, benzimidazole-derivative anthelmintic agent. The drug is structurally related to mebendazole and thiabendazole (not commercially available in the US). Like mebendazole, albendazole is a benzimidazole carbamate derivative.

Although the exact mechanism of action of albendazole has not been fully elucidated, the principal anthelmintic effect of benzimidazoles, including albendazole, appears to be the specific, high-affinity binding of the drug to free beta-tubulin in parasite cells, resulting in selective inhibition of parasite microtubule polymerization, and inhibition of microtubule-dependent uptake of glucose. Benzimidazole drugs bind to the beta-tubulin of parasites at much lower concentrations than to mammalian beta-tubulin protein; the drugs do not inhibit glucose uptake in mammals, and do not appear to have any effect on blood glucose concentrations in humans.

Albendazole is active against the larval forms of Echinococcus granulosus and Taenia solium. Resistance to albendazole can occur when amino acid changes cause changes in parasite beta-tubulin protein resulting in reduced binding of the drug to beta-tubulin.

Albendazole is poorly absorbed from the GI tract; however, oral bioavailability appears to be enhanced when the drug is administered with a fatty meal. Albendazole is metabolized in the liver to an active metabolite, albendazole sulfoxide, and systemic anthelmintic activity of the drug has been attributed to this metabolite. Peak plasma concentrations of albendazole sulfoxide are achieved 2-5 hours after an oral dose.

Because albendazole is rapidly converted to albendazole sulfoxide, plasma concentrations of the parent drug are negligible or undetectable. Albendazole sulfoxide is widely distributed throughout the body and has been detected in urine, bile, liver, cyst wall, cyst fluid, and CSF. The drug is 70% bound to plasma proteins.

The mean apparent terminal elimination half-life of albendazole sulfoxide in healthy individuals is 8-12 hours. Albendazole sulfoxide is partially eliminated in bile; less than 1% is eliminated in urine.

USES: This medication is used to treat certain tapeworm infections (such as neurocysticercosis and hydatid disease).

Generic name: albendazole
Pronunciation: (al-BEN-da-zole)
Drug class: Anthelmintics
Therapeutic class: Anti-Infective Agents

Reference product & biosimilars

No reference, biosimilar or interchangeable associated with this drug.

Today’s intelligence on Albendazole

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Indications

The following indications are listed for Albendazole:

  • Echinococcus Granulosus Infection
  • Echinococcus Granulosus Infection Of The Liver
  • Echinococcus Granulosus Infection Of The Lung
  • Echinococcus Granulosus Infection Of The Peritoneum
  • Neurocysticercosis

Also known as: Cysticerciasis Of Central Nervous System, Cysticercosis Of Central Nervous System, Cysticercosis Of Cns, Cysticercus Disease Of Central Nervous System, E. Granulosus Infection, Hydatid Disease Due To Echinococcus Granulosus Infection, Larval Taeniasis Of Central Nervous System, Larval Teniasis Of Central Nervous System, Liver Echinococcus Granulosus, Lung Echinococcus Granulosus, Peritoneum Echinococcus Granulosus, Taenia Armata Larval Infection Of Central Nervous System, Taenia Dentata Larval Central Nervous System Infection, Taenia Solium Larval Infection Of Central Nervous System, Unilocular Hydatid Disease, Uniocular Hydatid Disease Of Liver, Uniocular Hydatid Disease Of Lung, Uniocular Hydatid Disease Of The Peritoneum.

Dosing

No dosing information is available for this tab.

Drug interactions

Albendazole induces cytochrome P-450 (CYP) isoenzyme 1A in human hepatoma cells.

Contraindications

Albendazole is contraindicated in patients hypersensitive to benzimidazole derivatives or any component in the formulation.

Adverse reactions

Treatment of neurocysticercosis: Adverse effects reported in 1% or more of patients include headache, nausea, vomiting, increased intracranial pressure, and meningeal signs.

Treatment of hydatid disease: Adverse effects reported in 1% or more of patients include elevated hepatic enzymes, abdominal pain, nausea, vomiting, reversible alopecia, fever, headache, dizziness, and vertigo.

Precautions

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ICD codes

CodeTypeDescription
Echinococcus granulosus infection
B67.0ICD10CMEchinococcus granulosus infection of liver
B67.1ICD10CMEchinococcus granulosus infection of lung
B67.2ICD10CMEchinococcus granulosus infection of bone
B67.3ICD10CMEchinococcus granulosus infection, other and multiple sites
B67.31ICD10CMEchinococcus granulosus infection, thyroid gland
B67.32ICD10CMEchinococcus granulosus infection, multiple sites
B67.39ICD10CMEchinococcus granulosus infection, other sites
B67.4ICD10CMEchinococcus granulosus infection, unspecified
Echinococcus granulosus infection of the liver
B67.0ICD10CMEchinococcus granulosus infection of liver
B67.8ICD10CMEchinococcosis, unspecified, of liver
Echinococcus granulosus infection of the lung
B67.1ICD10CMEchinococcus granulosus infection of lung
Echinococcus granulosus infection of the peritoneum
B67.39ICD10CMEchinococcus granulosus infection, other sites
K67ICD10CMDisorders of peritoneum in infectious diseases classified elsewhere
Neurocysticercosis
B69.0ICD10CMCysticercosis of central nervous system

ICD code information from First Databank (FDB).

Formulary status

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Last reviewed · Source: First Databank (FDB) drug data