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AVM-GSL Over the Counter Companion Animal

Parazole Dog/Cat 100 mg/ml Oral Suspension

Active ingredient: Fenbendazole

Form

Liquid

Species

Cats Dogs

Manufacturer

Foran Healthcare

VMD MA No.

18576/4000

What it's used for

Effective against immature and mature ascarids, hookworms and tapeworms. Also kills roundworm eggs.

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

Parazole Dog/Cat 100 mg/ml Oral Suspension — SPC Details

Source: VMD Summary of Product Characteristics (SPC). Last updated 27 Mar 2026.

Effective against immature and mature ascarids, hookworms and tapeworms. Also kills
roundworm eggs.
To ensure a correct dosage, body weight should be determined as accurately as possible.
Dose for routine worming of adult dogs and cats:
Shake well before use and administer a single dose at a dose rate of 100 mg/kg body
weight which is equivalent to 1 ml per 1 kg body weight.
Dosage chart examples:
BodyweightVolume of ParazoleAdult Cat2 kg2 ml4 kg4 ml6 kg6 mlSmall Dog3 kg3 ml5 kg5 mlMedium Dog15 kg15 ml25 kg25 mlLarge Dog35 kg35 ml40 kg40 ml
Dose rate for weaned puppies and kittens under six months of age and lungworms in cats:
Shake well before use and administer a single dose for 3 consecutive days at a rate of 50
mg/kg body weight which is equivalent to 1 ml per 2 kg body weight.
Puppies should be treated at 2 weeks of age, 5 weeks of age and again before leaving the
breeder’s premises. Treatment may also be required at 8 weeks and 12 weeks of age.
Thereafter, frequency of treatment can be reduced unless the pups remain in kennels
where reinfestation occurs more readily.
Dose rate for pregnant bitches:
Shake well before use and administer 1 ml per 4 kg body weight daily from day 40 of
pregnancy continuously for approximately 25 days. This is equivalent to 25 mg
fenbendazole /kg body weight daily.
AN: 02999/2024 & 03001/2024
Fenbendazole can be administered orally either directly into the mouth or alternatively it
can be mixed in feed. Good mixing of the veterinary medicinal product in feed is advisable.
The suspension can be given using the 12 ml measuring syringe provided in the package.
A syringe adaptor luer is also provided in the package.
Dosing procedure using the measuring syringe:
1. Estimate the body weight of the dog or cat
accurately to ensure correct dosage.
2. To insert the syringe adapter (bung): Push
down and unscrew bottle top. Position the
syringe adapter (bung) and cap over the
bottle opening. Push down firmly and screw
cap into position. Syringe adapter (bung)
should now be flush with the top of the bottle
neck.
3. Shake bottle well before use. Push down
and unscrew the bottle top. Insert the nozzle
of the measuring syringe into the hole in the
bung by gently pushing.
4. Turn the bottle/syringe upside down. Pull
the syringe plunger out until the plunger
corresponds to the required dose.
5. Turn the bottle right way up and with a
twisting movement separate the measuring
syringe from the bottle.
6. Push the plunger to empty the contents of
the syringe directly into the mouth of the
animal or onto the food. Good mixing of the
veterinary medicinal product in food is
advisable if it is to be given this way.
7. Depending on the dose required, repeat
steps 3-6.
8. Replace bottle top after use.
Do not use in cases of hypersensitivity to the active substance or to any of the excipients.
AN: 02999/2024 & 03001/2024
Dogs and cats:
None known.
Reporting adverse events is important. It allows continuous safety monitoring of a
veterinary medicinal product. Reports should be sent, preferably via a veterinarian, to
either the marketing authorisation holder or the national competent authority via the
national reporting system. See the package leaflet for respective contact details.
Care should be taken to avoid the following practices because they increase the risk of
development of resistance and could ultimately result in ineffective therapy:
•
extended period of time.
•
misadministration of the veterinary medicinal product.

Special precautions for safe use in the target species:
Ensure correct weight estimation and dose calculation.
Special precautions to be taken by the person administering the veterinary medicinal
product to animals:
People with known hypersensitivity to fenbendazole or any of the excipients should avoid
contact with the veterinary medicinal product.
Personal protective equipment consisting of impermeable gloves should be worn when
handling the veterinary medicinal product. Wash hands after use.
Special precautions for the protection of the environment:
Not applicable.
None known.
AN: 02999/2024 & 03001/2024
It is advisable that the veterinary medicinal product is not mixed with other veterinary
medicinal products.
Do not freeze.
Not applicable.

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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