Bendex Suspension
Bendex Suspension (albendazole 20 mg/ml, 10 ml bottle) — paediatric oral anthelmintic suspension for pinworm, roundworm, and hookworm. Calibrated weight-band dosing with the supplied dosing cup.
✓ Medically reviewed by Morgan Ellis — Pharmacy Researcher · 8 years experience · Last reviewed: May 2026
Quick Answer — What is Bendex Suspension?
Bendex Suspension is a paediatric albendazole oral suspension from GSK — 20 mg/ml in a 10 ml bottle. Albendazole is the WHO Essential Medicine first-line treatment for pinworm, roundworm, hookworm, and whipworm in children and adults. Standard paediatric dose is 10 ml (200 mg) for ages 2 and above as a single dose, repeated in 2 weeks for pinworm.
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What is Bendex Suspension?
Bendex Suspension is an oral suspension of albendazole at 20 mg per ml, manufactured by GSK in a 10 ml bottle. The suspension format makes precise weight-based dosing straightforward in children too young to swallow tablets, and is also useful for adults with swallowing difficulties.
Albendazole is on the WHO Model List of Essential Medicines and is recommended as first-line therapy for the entire benzimidazole-susceptible nematode range. Its broad spectrum, single-dose schedule for most indications, and excellent safety profile have made it the most widely used anthelmintic in mass-treatment programmes.
Mechanism of action
Albendazole binds β-tubulin in parasite cells, preventing microtubule polymerisation. This blocks glucose uptake and depletes glycogen stores in adult worms and larvae — the parasite is starved and paralysed. Because mammalian β-tubulin has a different binding profile, the drug is selectively toxic to the parasite.
Albendazole is poorly absorbed orally (~5%); a fatty meal increases bioavailability roughly 5-fold. The active metabolite albendazole sulfoxide is responsible for systemic activity in tissue-dwelling parasites (echinococcosis, neurocysticercosis).
Bendex Suspension dosage
| Age | Dose | Indication |
|---|---|---|
| 12–23 months | 10 ml (200 mg) single dose | Pinworm, roundworm, hookworm |
| ≥ 2 years and adults | 20 ml (400 mg) single dose | Pinworm, roundworm, hookworm |
| ≥ 2 years and adults | 20 ml daily × 3 days | Whipworm (Trichuris) |
| ≥ 2 years and adults | 20 ml daily × 5 days | Strongyloidiasis (ivermectin preferred) |
Side effects
- Common: mild abdominal pain, transient diarrhoea, headache — usually self-limiting
- Less common: nausea, dizziness, transient elevation in liver enzymes
- Rare: reversible alopecia (high-dose long-course use), neutropenia, hepatitis
Drug interactions
- Cimetidine raises albendazole sulfoxide levels (up to 2×) — relevant only at high prolonged doses
- Carbamazepine and phenytoin reduce albendazole levels (CYP induction)
- Praziquantel and dexamethasone raise plasma levels of albendazole sulfoxide
Contraindications
- Hypersensitivity to albendazole or other benzimidazoles
- First trimester of pregnancy (use after week 13 only if needed)
- Severe hepatic impairment — monitor LFTs if course exceeds 7 days
- Pre-existing cytopenia — rare but documented
Storage
Store Bendex Suspension below 25°C, protect from light. Shake the bottle thoroughly before each dose. Discard any remaining suspension after the expiry date or 30 days post-opening (whichever is sooner).
Why order from MedsBase
Bendex Suspension is supplied from a WHO-GMP certified manufacturer, packaged discreetly, and shipped worldwide. Every order is covered by our Reshipment Assurance Policy — you never wear the cost of a lost parcel.
Frequently Asked Questions
How do I measure Bendex Suspension for my child?
Use the calibrated dosing cup or oral syringe supplied with the bottle. 20 mg per ml means 10 ml = 200 mg, and 20 ml = 400 mg. Do not estimate with a kitchen spoon — teaspoons vary widely.
What if my child vomits the dose?
If vomiting occurs within 30 minutes of the dose, repeat it. Beyond 30 minutes, the drug has been absorbed; do not redose.
Should I treat the rest of the family?
Yes — for pinworm in particular. Treat all household members on the same day and repeat in 2 weeks. Otherwise reinfection cycles continue.
Can my baby take Bendex Suspension?
Albendazole is licensed from 12 months of age in WHO mass-treatment programmes. Below 12 months consult a paediatrician — pinworm is uncommon in pre-walking infants and other diagnoses should be considered.
Is Bendex Suspension the same as Zentel?
Both contain albendazole at the same suspension strength. Manufacturer and excipients differ. Zentel is the GSK brand; Bendex Suspension is the GSK equivalent at lower cost.
Should I give Bendex Suspension on a full or empty stomach?
For pinworm and roundworm a fatty meal is unnecessary — the parasites are intestinal-luminal and respond well to the unabsorbed drug. For tissue parasites (echinococcosis) take with food to maximise systemic absorption.
How long until I see results?
Adult worms are paralysed within 24–48 hours and passed in faeces over the following days. Pinworm itching usually resolves within 1 week. Stool ova-and-parasite testing 2–4 weeks after treatment confirms eradication if needed.
Can I give Bendex Suspension alongside other antibiotics?
Most antibiotics are compatible. Avoid concurrent praziquantel high doses unless monitoring (raises sulfoxide levels). Routine paediatric antibiotics (amoxicillin, azithromycin) are fine.
What about diarrhoea after the dose?
Mild diarrhoea is common as dead worms pass through. Severe or persistent diarrhoea, fever, or blood in stool requires medical assessment — possibly bacterial co-infection.
Is once enough for ringworm or scabies?
Bendex Suspension (albendazole) does NOT treat ringworm (a fungal infection — use clotrimazole or terbinafine) or scabies (use permethrin or oral ivermectin). Albendazole is for intestinal worms only.
Other Antiparasitic Medications
- ABD 400 (albendazole 400 mg)
- Bendex Suspension (paediatric albendazole)
- Mebex (mebendazole 100 mg)
- Iverheal (ivermectin 3/6/12 mg)
- Nemocid (pyrantel pamoate)
More options in Threadworm Treatment
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| Strength | 10 ml |
|---|---|
| Quantity | 1 Bottle/s, 2 Bottle/s, 3 Bottle/s, 6 Bottle/s |
Frågor & svar
Bendex Suspension
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