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AVM-GSL Over the Counter Companion Animal

Bob Martin Clear Wormer Granules for Dogs 888.8 mg

Active ingredient: Fenbendazole

Form

Powder

Species

Dogs

Manufacturer

Chanelle Pharmaceuticals Manufacturing Ltd

VMD MA No.

08749/4056

What it's used for

The product is indicated for the treatment of common gastro-intestinal roundworms that can infect dogs. The product also has an ovicidal effect on nematode...

Full indications, dosage and side effects ↓
View official SPC (PDF)

The prescription itself has a price. See what practices near you charge for a consultation and the written prescription fee.

Paying less for Fenbendazole

  1. 1

    Ask your vet for a written prescription

    They must provide one on request. Under the CMA Order the fee is capped at £21 from 2027.

  2. 2

    Fill it at a registered online retailer

    The CMA found online pharmacies 50–60% cheaper than practice dispensing on common medicines — typically £200–£300 a year.

Clinical information

Bob Martin Clear Wormer Granules for Dogs 888.8 mg — SPC Details

Source: VMD Summary of Product Characteristics (SPC). Last updated 26 Mar 2026.

The product is indicated for the treatment of common gastro-intestinal roundworms
that can infect dogs.
The product also has an ovicidal effect on nematode eggs.
For oral administration only, sprinkled onto food.
For the routine treatment of adult dogs a dosage of 100mg fenbendazole/kg is
recommended.
Administer 4g of ‘the product per 8.8kg (19lb 4oz) bodyweight as a single dose.
This is equivalent to Fenbendazole 100mg/kg. The dose should be administered
by mixing the granules with approximately one third of the dog’s usual ration.
Once the dog has eaten this portion, the remainder of the food may be given.
However, any remaining medicated feed should be discarded.

For the treatment of clinical worm infestation in adult dogs, administer 4g of the
product per 17.6kg (38lb 8oz) bodyweight daily for 3 days. This is equivalent to
Fenbendazole 51mg/kg. The dose should be administered by mixing the
granules with approximately one third of the dog’s usual ration. Once the dog has
eaten this portion, the remainder of the food may be given. However, any
remaining medicated feed should be discarded.
In households owning more than one dog, give the granules to each dog
individually, ensuring that other dogs do not have access to the treated food
during the period of the dose being administered.
Known hypersensitivity to active substance.
None known.
Do not administer if your dog is sick or recovering from an illness.

i) Special precautions for use in animals
None.

Revised: June 2022
AN: 00162/2022
ii) Special precautions to be taken by the person administering the veterinary
medicinal product to animals
Direct contact with the skin should be kept to a minimum. Avoid inhalation
of granule dust. Wash hands after use.
None known.
Store in a dry place.
Not applicable.

Revised: June 2022
AN: 00162/2022
5.

This information is sourced from the official Summary of Product Characteristics (SPC) published by the Veterinary Medicines Directorate (VMD). It is provided for informational purposes only and does not replace professional veterinary advice. Always consult your vet before administering any medication.

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