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Brand: MSD

Panacur Worming Granules for Dogs and Cats

Price range: £1.29 through £3.59

Panacur Worming Granules for Dogs and Cats are an easy to use wormer that kills intestinal roundworms and tapeworms.

Legal Category : NFA-VPS

Please note we can only dispense up to 1 year of this wormer per animal

Animal information

  • Animal name *

  • Animal type *

    (dog, cat, horse, etc)

  • Animal Weight (kg) *

  • Animal age (years) *

    If unsure, give an estimated value.

  • Is your animal healthy? *

  • Have you given your animal this medication before? *

  • Has your pet ever suffered from side effects relating to this medication? *

  • Is your animal on any medication that your vet has recommended not to be used alongside this medication? *

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Panacur Worming Granules for Cats and Dogs are a 22% formulation of fenbendazole, easily administered with food. No starving is needed.

  • For the treatment of adult dogs and cats infected with gastro-intestinal roundworms and tapeworms.

  • For the treatment of weaned puppies and kittens infected with gastro-intestinal roundworms and puppies infected with protozoa (Giardia spp.)

  • For the treatment of pregnant bitches to reduce prenatal infections of Toxocara canis and the transfer of roundworms to their pups via the milk

  • Also for the treatment of dogs infected with lungworm or protozoa Giardia spp., and cats infected with lungworm.


Amounts to be administered and administration route


Routine treatment of adult dogs and cats

Practical dosage recommendations:

  • 1 g sachet /dose Treats 2 kg (4.4 lb) bodyweight as a single dose (1.1 – 2.2 kg)

  • 1.8 g sachet / dose Treats 4 kg (8.8 lb) bodyweight as a single dose (2.2 – 4.4 kg)

  • 4.5 g sachet /dose Treats 10 kg (22 lb) bodyweight as a single dose (5 – 10 kg)

  • For dogs weighing over 10 kg (22 lb), additional sachets are required according to the additional bodyweight.


Assess bodyweight as accurately as possible and then administer one or a combination of the above sachets, which most closely doses this bodyweight. The dose should be administered by mixing into the feed.

e.g. For a 9 kg dog = 2 kg dose (1 g sachet) + 4 kg dose (1.8 g sachet) + 4 kg dose (1.8 g sachet).

i.e. one x 1 gram sachet + two x 1.8 gm sachets. (10 kg dose)

or, one x 4.5 gram sachet (10 kg dose)

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.

Weaned puppies and kittens under six months of age

Administer 50 mg fenbendazole per 1 kg (2.2 lb) bodyweight daily for 3 consecutive days.

Practical dosage recommendations:

  • 1 g sachet /dose Treats 4 kg (8.8 lb) bodyweight (minimum weight 2.2 kg) dosed daily for three consecutive days (2.2 – 4.4 kg)

  • 1.8 g sachet / dose Treats 8 kg (17.6 lb) bodyweight dosed daily for three consecutive days (4.5– 8 kg)

  • 4.5 g sachet /dose Treats 20 kg (44 lb) bodyweight dosed daily for three consecutive days (10– 20 kg)


For dogs/puppies weighing over 20 kg (44 lb), additional sachets are required according to the additional bodyweight.

Assess bodyweight as accurately as possible and then administer one or a combination of the above sachets, which most closely doses this bodyweight. The dose should be administered by mixing into the feed.

e.g. For a 9 kg puppy = 4 kg dose (1 g sachet) + 8 kg dose (1.8 g sachet) daily for 3 consecutive days.

i.e. one x 1 gram sachet + one x 1.8 gram sachet (12 kg dose) daily for 3 days

or, three x 1 gram sachet (12 kg dose) daily for 3 days.

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 and 12 weeks of age. Thereafter, frequency of treatment can be reduced unless the pups remain in kennels where re-infestation occurs more readily.

Pregnant dogs

Administer 25 mg fenbendazole per 1 kg (2.2 lb) bodyweight daily from day 40 of pregnancy continuously to 2 days post-whelping (approximately 25 days).

Practical dosage recommendations:

  • 1 g sachet /dose Treats 8 kg (17.6 lb) bodyweight daily approx. 25 days

  • 1.8 g sachet / dose Treats 16 kg (35.2 lb) bodyweight daily approx. 25 days

  • 4.5 g sachet /dose Treats 40 kg (88 lb) bodyweight daily approx. 25 days

  • For bitches weighing over 40 kg, additional sachets are required according to the additional bodyweight.


Increased dosing for specific infections:

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

For the control of lungworm Oslerus (Filaroides) osleri in dogs administer 50mg fenbendazole per 1 kg (2.2 lb) 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 1 kg (2.2 lb) bodyweight daily for 3 consecutive days.

Panacur Worming Granules for Cats and Dogs are a 22% formulation of fenbendazole, easily administered with food. No starving is needed.

  • For the treatment of adult dogs and cats infected with gastro-intestinal roundworms and tapeworms.
  • For the treatment of weaned puppies and kittens infected with gastro-intestinal roundworms and puppies infected with protozoa (Giardia spp.)
  • For the treatment of pregnant bitches to reduce prenatal infections of Toxocara canis and the transfer of roundworms to their pups via the milk
  • Also for the treatment of dogs infected with lungworm or protozoa Giardia spp., and cats infected with lungworm.

Amounts to be administered and administration route

Routine treatment of adult dogs and cats

Practical dosage recommendations:

  • 1 g sachet /dose Treats 2 kg (4.4 lb) bodyweight as a single dose (1.1 – 2.2 kg)
  • 1.8 g sachet / dose Treats 4 kg (8.8 lb) bodyweight as a single dose (2.2 – 4.4 kg)
  • 4.5 g sachet /dose Treats 10 kg (22 lb) bodyweight as a single dose (5 – 10 kg)
  • For dogs weighing over 10 kg (22 lb), additional sachets are required according to the additional bodyweight.

Assess bodyweight as accurately as possible and then administer one or a combination of the above sachets, which most closely doses this bodyweight. The dose should be administered by mixing into the feed.

e.g. For a 9 kg dog = 2 kg dose (1 g sachet) + 4 kg dose (1.8 g sachet) + 4 kg dose (1.8 g sachet).

i.e. one x 1 gram sachet + two x 1.8 gm sachets. (10 kg dose)

or, one x 4.5 gram sachet (10 kg dose)

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.

Weaned puppies and kittens under six months of age

Administer 50 mg fenbendazole per 1 kg (2.2 lb) bodyweight daily for 3 consecutive days.

Practical dosage recommendations:

  • 1 g sachet /dose Treats 4 kg (8.8 lb) bodyweight (minimum weight 2.2 kg) dosed daily for three consecutive days (2.2 – 4.4 kg)
  • 1.8 g sachet / dose Treats 8 kg (17.6 lb) bodyweight dosed daily for three consecutive days (4.5– 8 kg)
  • 4.5 g sachet /dose Treats 20 kg (44 lb) bodyweight dosed daily for three consecutive days (10– 20 kg)

For dogs/puppies weighing over 20 kg (44 lb), additional sachets are required according to the additional bodyweight.

Assess bodyweight as accurately as possible and then administer one or a combination of the above sachets, which most closely doses this bodyweight. The dose should be administered by mixing into the feed.

e.g. For a 9 kg puppy = 4 kg dose (1 g sachet) + 8 kg dose (1.8 g sachet) daily for 3 consecutive days.

i.e. one x 1 gram sachet + one x 1.8 gram sachet (12 kg dose) daily for 3 days

or, three x 1 gram sachet (12 kg dose) daily for 3 days.

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 and 12 weeks of age. Thereafter, frequency of treatment can be reduced unless the pups remain in kennels where re-infestation occurs more readily.

Pregnant dogs

Administer 25 mg fenbendazole per 1 kg (2.2 lb) bodyweight daily from day 40 of pregnancy continuously to 2 days post-whelping (approximately 25 days).

Practical dosage recommendations:

  • 1 g sachet /dose Treats 8 kg (17.6 lb) bodyweight daily approx. 25 days
  • 1.8 g sachet / dose Treats 16 kg (35.2 lb) bodyweight daily approx. 25 days
  • 4.5 g sachet /dose Treats 40 kg (88 lb) bodyweight daily approx. 25 days
  • For bitches weighing over 40 kg, additional sachets are required according to the additional bodyweight.

Increased dosing for specific infections:

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

For the control of lungworm Oslerus (Filaroides) osleri in dogs administer 50mg fenbendazole per 1 kg (2.2 lb) 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 1 kg (2.2 lb) bodyweight daily for 3 consecutive days.

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