Prescribing Guides
Albendazole Prescribing Guide for Indian Clinical Practice
Albendazole prescribing guide for Indian clinicians covering anthelmintic pharmacology, mass drug administration, neurocysticercosis dosing and NEET PG points.
MedNext Editorial Team | 2026-08-01 | 8 min read
Albendazole Prescribing Guide for Indian Clinical Practice
Albendazole prescribing guide for Indian clinicians covering anthelmintic pharmacology, mass drug administration, neurocysticercosis dosing and NEET PG points.
Albendazole is the most widely used anthelmintic in India and is central to the national deworming programme. It is also indispensable for systemic parasitic infections including neurocysticercosis and hydatid disease, which are significant clinical problems in India.
Clinical Pharmacology Overview
Albendazole is a benzimidazole anthelmintic that binds to parasite beta-tubulin, inhibiting microtubule polymerisation. This disrupts glucose uptake, depletes glycogen stores, and impairs cell division in the worm, leading to its death. It has a broad spectrum covering nematodes, cestodes, and some trematodes.
Pharmacokinetics: Poorly absorbed orally (absorption increases 5-fold with fatty food). Rapidly metabolised in the liver to the active metabolite albendazole sulfoxide. Protein binding of sulfoxide is 70%. Half-life of albendazole sulfoxide is 8-12 hours. Excreted primarily in bile and urine.
Indian Brand Names
- Zentel (GSK)
- Albendazole IP (generic, multiple manufacturers)
- Noworm (Cipla)
- Bendex (Franco-Indian)
- Bandy (Mankind Pharma)
Approved Indications in Indian Clinical Practice
- Intestinal nematodes: roundworm (Ascaris), hookworm (Ancylostoma, Necator), whipworm (Trichuris), pinworm (Enterobius)
- Strongyloidiasis
- Neurocysticercosis (Taenia solium larval stage in brain)
- Hydatid disease (Echinococcus granulosus) -- pre- and post-surgical or as primary treatment when surgery is not feasible
- Lymphatic filariasis (in combination with DEC or ivermectin in mass drug administration)
- Giardiasis (alternative agent)
- Cutaneous and visceral larva migrans
- National Deworming Day programme (mass administration)
Dosing in Adults
Routine deworming: 400 mg as a single oral dose.
Pinworm (Enterobius): 400 mg single dose, repeat after 2 weeks.
Strongyloidiasis: 400 mg twice daily for 3-7 days.
Neurocysticercosis: 15 mg/kg/day (max 800 mg/day) in 2 divided doses for 8-30 days. Take with fatty meals. Co-administer corticosteroids and antiepileptics.
Hydatid disease: 400 mg twice daily for 28-day cycles with 14-day drug-free intervals between cycles. Treatment duration: 3-6 months or longer.
Lymphatic filariasis (MDA): 400 mg single dose + DEC 6 mg/kg (or ivermectin 200 mcg/kg in areas with Loa loa co-endemicity).
Important Drug Interactions
- Dexamethasone: increases albendazole sulfoxide levels by approximately 50% (relevant in NCC treatment -- this is actually beneficial)
- Cimetidine: increases albendazole sulfoxide levels
- Praziquantel: increases albendazole sulfoxide levels (synergistic in NCC)
- Carbamazepine, phenytoin: may reduce albendazole sulfoxide levels (CYP inducers)
- Grapefruit juice: may increase absorption
- Theophylline: albendazole may increase theophylline levels
Side Effects and Monitoring
Single-dose deworming: generally very well tolerated. Mild abdominal pain, nausea, diarrhoea may occur due to worm expulsion.
Prolonged high-dose therapy (NCC, hydatid): hepatotoxicity (elevated transaminases in up to 16% of patients), leucopenia, pancytopenia, alopecia (reversible), headache, dizziness.
NCC-specific: worsening neurological symptoms due to inflammation from cyst degeneration (controlled with steroids), seizures, raised intracranial pressure.
Monitoring for prolonged courses: CBC and LFTs every 2 weeks. Pregnancy test before initiating prolonged therapy in women of childbearing age. Neuroimaging for NCC.
Special Populations
Pregnancy: Category C. Teratogenic in animal studies. Avoid in first trimester. WHO permits second/third trimester use in mass deworming programmes in high-prevalence settings. Women should not become pregnant during or within 1 month of treatment.
Renal impairment: No dose adjustment (primarily hepatic metabolism).
Hepatic impairment: Use with caution. Monitor LFTs closely. Avoid in severe hepatic disease.
Children: 400 mg single dose for children over 2 years. 200 mg for children 1-2 years (WHO mass deworming). Safety not established under 1 year.
NEET PG High-Yield Points
- Mechanism: binds parasite beta-tubulin, inhibits microtubule polymerisation
- Broadest spectrum anthelmintic available (nematodes + cestodes)
- Drug of choice for neurocysticercosis (with steroids) and hydatid disease
- Absorption increases 5-fold with fatty food -- critical for systemic infections
- Active metabolite: albendazole sulfoxide
- National Deworming Day: 400 mg single dose to all children 1-19 years
- Lymphatic filariasis MDA: albendazole + DEC (or ivermectin)
- Teratogenic -- avoid in pregnancy (especially first trimester)
- Leucopenia and hepatotoxicity with prolonged courses -- monitor CBC and LFTs
Indian Regulatory Status
Albendazole is a Schedule H drug under the Drugs and Cosmetics Act. It is included in the NLEM of India and is one of the most affordable essential medicines. The Government of India conducts National Deworming Day (February and August) where albendazole 400 mg is distributed free to school-age children. It is manufactured domestically by numerous Indian pharmaceutical companies. Price is controlled under DPCO.
Frequently Asked Questions
What is the dose of albendazole for routine deworming?
For routine deworming (roundworm, hookworm, whipworm, pinworm), the standard dose is 400 mg as a single oral dose for adults and children over 2 years. India's National Deworming Day programme administers this dose biannually to all children aged 1-19 years in endemic areas.
Why should albendazole be taken with fatty food?
Albendazole absorption increases by up to 5-fold when taken with a fatty meal. This is especially important for systemic infections (hydatid disease, neurocysticercosis) where adequate tissue levels are needed. For intestinal worms, food enhances efficacy but is less critical since the drug acts locally.
Is albendazole safe in pregnancy?
Albendazole is Category C and is generally avoided in pregnancy, especially in the first trimester, due to teratogenic effects demonstrated in animal studies. WHO permits its use in the second and third trimesters for mass drug administration in high-prevalence areas where hookworm anaemia poses a significant maternal risk.
How is neurocysticercosis treated with albendazole?
Neurocysticercosis (NCC) treatment with albendazole requires 15 mg/kg/day (max 800 mg/day) in two divided doses for 8-30 days, taken with fatty food, combined with corticosteroids (dexamethasone or prednisolone) to control inflammation from cyst degeneration. Antiepileptics are co-administered. Treatment decisions are guided by imaging and specialist consultation.
Continue reading
Prescribing GuidesMetformin Prescribing Guide for Indian Clinical Practice
Evidence-based metformin prescribing for Indian clinicians covering dosing, brands, interactions, monitoring and NEET PG high-yield points.
Prescribing GuidesCeftriaxone Prescribing Guide for Indian Clinical Practice
Complete ceftriaxone prescribing reference for Indian clinicians covering indications, dosing, reconstitution, drug interactions and NEET PG points.
Prescribing GuidesAmoxicillin Prescribing Guide for Indian Clinical Practice
Comprehensive amoxicillin prescribing reference for Indian doctors covering dosing, brands, resistance patterns and NEET PG high-yield pharmacology.
Continue with Prescribing Guides
Apply what you have read with clinical prescribing MCQs that test real decision-making: drug choice, dose selection, interactions and monitoring.
Try prescribing questionsBrowse all prescribing guides