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PANACUR® Oral Suspension for cats & dogs is a broad spectrum anthelmintic for the treatment of domestic dogs and cats infected with immature and mature stages of roundworms of the gastro?intestinal and respiratory tracts. PANACUR® Oral Suspension is ideal for dosing puppies and kittens, and adult cats and dogs.




MSD Animal Health


Cat, Dog

Prescription Type

NFA-VPS (Animal details required)

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Reference : PA10183
Delivery Between 2 and 3 days
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What is Panacur oral suspension and who is it for?


PANACUR® 10% Oral Suspension is a ready-to-use fenbendazole wormer for the treatment of dogs and cats infected with gastro?intestinal roundworms, tapeworms, and giardia protozoa, as well as Oslerus (Filaroides) osleri lungworm in dogs and Aelurostrongylus abstrusus lungworm in cats. It safe for use in puppies and kittens and adult dogs and cats, including pregnant bitches and queens.


The most up to date Summary of Product Characteristics for this authorised veterinary medicine can be viewed here.


Please Note: We may need to contact you for some additional information about your pet, before we can dispense this medicine.

What does Panacur oral suspension do?


PANACUR® 10% Oral Suspension for Dogs and Cats is indicated for the treatment of domestic dogs and cats infected with immature and mature stages of nematodes of the gastro-intestinal and respiratory tracts.

  • Adult dogs and cats: For the treatment of adult dogs and cats infected with gastro-intestinal nematodes and cestodes:
    • Ascarid spp. (Toxocara canis, Toxocara cati, Toxascaris leonina)
    • Ancylostoma spp.
    • Trichuris spp.
    • Uncinaria spp.
    • Taenia spp.
  • Puppies and kittens: For the treatment of weaned puppies and kittens infected with gastro-intestinal nematodes and puppies infected with protozoa (Giardia spp):
  • Pregnant dogs: For the treatment of pregnant dogs to reduce prenatal infections with Toxocara canis and the transfer of T.canis and Ancylostoma caninum to their pups via the milk.
  • Also for the treatment of dogs infected with lungworm Oslerus (Filaroides) osleri or protozoa Giardia spp. and cats infected with lungworm Aelurostrongyles abstrusus

Panacur also has an ovicidal effect on nematode eggs.


What is the active ingredient in Panacur oral suspension and what does it do?


PANACUR® Wormer contains fenbendazole which acts by interfering in the energy metabolism of the nematode (worm).

100ml multidose container.

What is in Panacur oral suspension?


Active substance:

Fenbendazole. ………………………………………..10.00%w/w


Sodium methyl hydroxybenzoate……………………0.200%w/w
Sodium propyl hydroxy benzoate……………………0.020%w/w
Benzyl alcohol . ………………………………………..0.4835%w/w

Silica colloidal
Carmellose sodium
Sodium citrate dehydrate
Citric Acid
Water purified

How do I use Panacur oral suspension?


Shake container before use.

For oral administration only. The dose should be added to feed directly before feeding or administered by mouth directly after feeding.

Assess bodyweight as accurately as possible prior to determining the correct dosage.

Adult Dogs & Cats:

For the routine treatment of adult dogs and cats orally administer 1 ml per 1 kg body weight as a single oral dose (= 100 mg fenbendazole/kg body weight).

Treatment should be repeated when natural re-infection with parasitic worms occurs. Routine treatment of adult animals with minimal exposure to infection is advisable 2 to 4 times per year. More frequent treatment, at 6 to 8 weekly intervals is advisable for dogs in kennels and cats in catteries or a breeders premises.

Practical dosage recommendations:

2 to 4 kg 4 ml
4 to 8 kg 8 ml
8 to 16 kg 16 ml
16 to 24 kg 24 ml
24 to 32 kg  32 ml
32 to 64 kg  64 ml

For dogs weighing over 64 kg, an extra 10 ml are required for each additional 10 kg body weight.

For the treatment of clinical worm infestations in adult dogs and cats or Giardia spp. infections in dogs, administer 50mg fenbendazole/kg (2.2lb) (=1 ml per 2 kg bodyweight) daily for 3 consecutive days.

For the control of lungworm Oslerus (Filaroides) osleriin dogs administer 50mg fenbendazole/kg (2.2lb) (=1 ml per 2 kg bodyweight) daily for 7 consecutive days.
A repeat course of treatment may be required in some cases.

For the control of lungworm Aelurostrongylus abstrusus in cats administer 50mg fenbendazole per 1kg (2.2lb) (=1 ml per 2 kg bodyweight) daily for 3 consecutive days.

Puppies & Kittens:

For treatment of puppies and kittens under 6 months of age administer 0.5 ml per kg body weight daily for 3 consecutive days given by mouth directly after feeding to unweaned animals or added to feed for weaned animals, directly before feeding (= 50 mg fenbendazole/kg body weight daily for 3 days).

Puppies and kittens 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 and 12 weeks of age.  Thereafter, frequency of treatment can be reduced unless the pups remain in kennels or kittens remain in catteries /breeders premises where re-infestation occurs more readily.

Practical dosage recommendations:

Up to 1kg 0.5 ml daily for 3 days
1 to 2 kg 1 ml daily for 3 days
2 to 4 kg 2 ml daily for 3 days
4 to 6 kg 3 ml daily for 3 days
6 to 8 kg  4 ml daily for 3 days
8 to 10 kg  5 ml daily for 3 days

For puppies weighing over 10 kg, an extra 0.5 ml is required daily for each additional kg body weight.

Pregnant dogs

Administer orally 1 ml per 4 kg body weight daily from day 40 of pregnancy continuously to 2 days post-whelping (approximately 25 days) (= 25 mg fenbendazole/kg body weight daily).

4 kg 1 ml daily for approximately 25 days
8 kg 2 ml daily for approximately 25 days
12 kg 3 ml daily for approximately 25 days
20 kg 5 ml daily for approximately 25 days
40 kg  10 ml daily for approximately 25 days

For dogs weighing over 40 kg, an extra 1 ml is required daily for each additional 4 kg body weight.

As treatment of pregnant dogs is 98% effective, puppies from these dogs should themselves be treated with a 3 day course at 2 and 5 weeks of age.

Pregnant cats

Pregnant cats can be safely treated but only require a single treatment at the routine adult dose rate. Administer 1ml per kg body weight as a single dose (= 100mg fenbendazole/kg body weight).

Special precautions for use in animals

Do not use in cases of hypersensitivity to the active substance or to any of the other ingredients.

As teratogenic effects in dogs and cats cannot be completely ruled out in very rare cases, the treatment in the first two trimesters of pregnancy should be based on the benefit-risk evaluation by the responsible veterinary surgeon.

Special precautions to be taken by the person administering the medicinal product to animals

Direct contact with the skin should be kept to a minimum. Wear impermeable rubber gloves while administering the product

Wash hands after use.

Do not freeze.

Adverse reactions

Gastrointestinal signs (such as vomiting and diarrhoea) can occur in very rare cases in dogs and cats.


Intervet UK Ltd
Walton Manor
Milton Keynes


Vm 01708/4436