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Worm and parasite medicines

Albendazole

Also sold as: Zentel

No prescription neededWorm and parasite medicines
Comes as:TabletChewable tabletSuspension

Usual adult dose

Usual dose for adults and children over 2 years: 400 mg as a single dose for common intestinal worms. Children 1 to 2 years: 200 mg. Other worm infections: as prescribed by your doctor.

Your doctor may give you a different dose. Children's doses depend on weight.

Side effects

Common

  • stomach pain
  • nausea
  • headache
  • dizziness

Serious — get help

Stop taking it and see a doctor straight away if you notice:

  • severe allergic reaction
  • yellow eyes or skin
  • fever with sore throat (low white cells
  • with long courses)

Do not take it, or take care, if

  • Pregnancy, especially the first 3 months
  • Children under 1 year
  • Liver disease (use with caution for long courses)

Interactions

Medicines that can react with this one.

Moderate1 medicineTake together only with care. Ask your doctor or pharmacist.
  • Carbamazepine

    Carbamazepine lowers albendazole levels, which matters for long treatment of tissue worm infections.

Pregnancy

  1. A
  2. B
  3. C
  4. D
  5. X

Category C

A risk to the baby cannot be ruled out. Use only if your doctor says the benefit is greater than the risk.

Generic alternatives

Similar medicines your doctor or pharmacist may offer instead.

  • MebendazoleNo prescription needed
  • PyrantelNo prescription needed
Check with my other medicines

Always follow your doctor or pharmacistThis page is general information, not a prescription. Do not start, stop or change a medicine on your own.