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Panacur 10% Suspension

Panacur 10% Suspension
1 litre Bottle

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  • 1 litre Bottle £81.30
  • 2 litre Bottle £133.98
  • 5 litre Bottle £289.98

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£81.30 to £289.98


This liquid wormer contains the tried and trusted ingredient fenbendazole. Panacur is very effective against roundworms and other intestinal parasites with an exceptionally high safety margin. Repeated use on ths same farm with one product can lead to resistance, so it is important to rotate the type of wormer used. Seek veterinary advice if in doubt. It comes as a ready to administer oral anthelmintic for cattle, sheep and horses

Need help or advice? Contact us:

  • Landline: 01582 842096
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  • Email: [email protected]

All prices include VAT where applicable.

Medication Datasheets

1 litre Bottle

Panacur 10 % Oral Suspension

Qualitative and quantitative composition

Active substance % w/v

Fenbendazole: 10.00

Other substances:

Sodium methyl hydroxybenzoate: 0.200

Sodium propyl hydroxybenzoate: 0.0216

Benzyl alcohol: 0.4835

For full list of excipients, see section "Pharmaceutical Particulars".

Pharmaceutical form

Clear colourless or virtually colourless oral suspension.

Clinical particulars

Target species

Cattle, sheep, horses and other equines.

Indications for use

A broad-spectrum anthelmintic for the treatment of cattle and sheep infected with mature and developing immature forms of nematodes of the gastro-intestinal and respiratory tracts.


For the treatment of cattle infected with:

Ostertagia spp. Cooperia spp.
Trichostrongylus spp. Nematodirus spp.
Oesophagostomum spp. Haemonchus spp.
Bunostomum spp. Strongyloides spp.
Trichuris spp. Dictyocaulus viviparus

The product is usually effective against inhibited larvae of Ostertagia spp. and against Moniezia spp. of tapeworm.


For the treatment of sheep infected with benzimidazole susceptible:

Ostertagia spp. Haemonchus spp.
Trichostrongylus spp. Nematodirus spp.
Oesophagostomum spp. Cooperia spp.
Chabertia spp. Bunostomum spp.
Strongyloides spp. Dictyocaulus filaria

The product is usually effective against Moniezia spp. of tapeworm and may have useful but variable efficacy against Trichuris spp.


For the treatment and control of adult and immature roundworms of the gastro-intestinal tract in horses and other equines.

The product effectively treats and controls the following roundworm infections:

Large strongyles (adults and migrating larval stages of Strongylus vulgaris; adults and tissue larval stages of S. edentatus).

Benzimidazole-susceptible adult and immature small strongyles (Cyathostomes).

The product is also effective for the treatment and control of encysted mucosal 3rd and 4th stage small strongyle larvae and is also effective against encysted inhibited 3rd stage small strongyle larvae in the mucosa.

Adult and immature Oxyuris spp., Strongyloides spp. and Parascaris equorum.

Fenbendazole also has an ovicidal effect on nematode eggs.


Do not use in horses and other equines intended for human consumption.

Fenbendazole as a medicated liquid feed should not be used in the treatment of clinical infestations in cattle and sheep.

Special warnings for each target species

When administered by divided dosage in the form of liquid feed, the product may not be effective against Strongyloides and Trichuris spp. in cattle and Strongyloides, Dictyocaulus and Bunostomum spp. in sheep.

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:

Suspected clinical cases of resistance to anthelmintics should be further investigated using appropriate tests (e.g. Faecal Egg Count Reduction Test). Where the results of the test(s) strongly suggest resistance to a particular anthelmintic, an anthelmintic belonging to another pharmacological class and having a different mode of action should be used.

Resistance to benzimidazoles (which include fenbendazole) has been reported in Teladorsagia, Haemonchus, Cooperia and Trichostrongylus species in small ruminants in a number of countries, including the EU. Therefore the use of this product should be based on local (regional, farm) epidemiological information about susceptibility of nematodes and recommendations on how to limit further selection for resistance to anthelmintics.

Resistance to fenbendazole has been reported in cyathostomes in horses. Therefore the use of this product should be based on local (regional, farm) epidemiological information about susceptibility of nematodes and recommendations on how to limit further selection for resistance to anthelmintics.

Special precautions for use

When incorporating this product into liquid feed, after thoroughly shaking the suspension, measure the required volume of the suspension and add it to approximately 10 % of the liquid feed. Thoroughly mix this material and then add the remaining liquid feed and once again mix to produce a homogenous dispersion.

Mix the medicated feed thoroughly prior to administration for example by rolling the drum or barrel.

Assess body weight as accurately as possible before calculating the dosage.

Intensive use or misuse of anthelmintic can give rise to resistance. To reduce this risk, dosing programmes should be discussed with your veterinary surgeon.

Operator warnings:

Direct contact with the skin should be kept to a minimum. Wear suitable protective clothing including impermeable rubber gloves.

Wash hands after use.

Adverse reactions


Use during pregnancy, lactation or lay

The product can be administered to pregnant animals. Pregnant mares and young foals may also be safely treated with fenbendazole at the therapeutic dosage levels.


None known.

Amounts to be administered and administration route

Shake container before use. For oral administration only.

No dietary control is required before or after treatment.

To ensure administration of a correct dose, body weight should be determined as accurately as possible; accuracy of the dosing device should be checked.

Cattle and Horses: Administer orally 1 ml of the product per 13 kg body weight. (= 7.5 mg fenbendazole/kg body weight)

Practical dosage recommendations:
65 kg | 5 ml
135 kg | 10 ml
200 kg | 15 ml
265 kg | 20 ml
335 kg | 25 ml
400 kg | 30 ml

Above 400 kg, an extra 3.75 ml are required for each additional 50 kg body weight.

Sheep: Administer orally 0.5 ml per 10 kg body weight (= 5 mg fenbendazole/kg body weight)

Practical dosage recommendations:
Up to 10 kg | 0.5 ml
11 to 20 kg | 1.0 ml
21 to 30 kg | 1.5 ml
31 to 40 kg | 2.0 ml
41 to 50 kg | 2.5 ml
51 to 60 kg | 3.0 ml
61 to 70 kg | 3.5 ml
71 to 80 kg | 4.0 ml

Above 80 kg, an extra 0.5 ml is required for each additional 10 kg body weight.

The product is best administered to cattle with the Panacur 20 ml Automatic Drencher and to sheep with the 5ml Sheep Drencher, but other standard dosing guns or drenching equipment may also be used.

For administration to horses, thoroughly mix the product with grain or concentrate feed and give the full dosage as one administration.

Treatment should be repeated when natural re-infection of animals with parasitic worms occurs.

Horses: Recommended dosage programme.

All horses should be routinely wormed with the single dose regimen every 6-8 weeks.

Treatment of encysted inhibited and encysted mucosal dwelling larvae should be performed in the autumn (ideally late October/November) and again in the Spring (ideally in February). However, for horses who fail to maintain condition or bought-in horses with unknown worming history, the treatment can be given at any time of the year.

Five day course

For the treatment and control of migrating and issue larval stages of large strongyles, encysted mucosal 3rd and 4th stage small strongyle larvae and encysted inhibited 3rd stage small strongyle larvae in the mucosa administer 5 ml of the product per 64 kg body weight daily for 5 days (= 7.5 mg fenbendazole/kg body weight daily for 5 days).

Single dose treatment

For the treatment and control of encysted mucosal stages of small strongyles administer 3 ml of the product per 10 kg body weight (= 30 mg fenbendazole / kg body weight).

For the treatment and control of migrating and tissue stages of large strongyles administer 6 ml of the product per 10 kg body weight (= 60 mg fenbendazole / kg body weight).

For the treatment of diarrhoea cause by Strongyloides westeri in two to three week old sucking foals administer 5 ml of the product per 10kg body weight (= 50mg fenbendazole / kg body weight).

Do not mix with other products.


Benzimidazoles have a high margin of safety. No specific overdose symptoms are known. No specific actions required.

Withdrawal periods

Cattle – Meat: 12 Days

Milk: 5 Days

Sheep - Meat: 15 Days

Milk: 7 Days

Not to be used in horses intended for human consumption.

Treated horses may never be slaughtered for human consumption.

The horse must have been declared as not intended for human consumption under national horse passport legislation.

Pharmacological particulars

Pharmacodynamic properties

ATC Vet Code: QP52AC13

Fenbendazole is an anthelmintic belonging to the benzimidazole carbamates group. It acts by interfering with the energy metabolism of the nematode. The anthelmintic efficacy is based on inhibition of the polymerisation of tubulin to microtubuli. The anthelmintic affects both adult and immature stages of gastro-intestinal and respiratory nematodes.

Pharmacokinetic properties

Fenbendazole is only partly absorbed after oral administration and is then metabolised in the liver.

The half life of fenbendazole in serum after oral application of the recommended dose in cattle is 10-18 hours and in sheep 21-33 hours. Fenbendazole and its metabolites are distributed throughout the body and high concentrations can be found in the liver. The elimination of fenbendazole and its metabolites occurs primarily via the faeces (>90%) and to a small extent in the urine and milk. Fenbendazole is metabolised to its sulfoxide then to sulfone and amines.

Pharmaceutical particulars


Sodium methyl hydroxybenzoate, Sodium propyl hydroxybenzoate, Benzyl alcohol, Silica colloidal, Carmellose sodium, Povidone, Sodium citrate dihydrate, Citric Acid and Water purified.

Major incompatibilities


Shelf life

Shelf-life of the veterinary medicinal product as packaged for sale: 3 years.

Shelf-life after first opening of the immediate packaging:

Liquid feed containing the product will remain stable for up to 3 months.

Special precautions for storage

Do not store above 25°C. Protect from frost. Do not freeze.

Shake container before use. Keep container in its outer carton.

Immediate packaging

1, 2, 5 and 10 litre multidose containers. Container: opaque white high density polyethylene. Closure: Tamper proof aluminium foil seal with polyethylene screw cap.


Any unused product or waste material should be disposed of in accordance with national requirements. DANGEROUS to aquatic life. Do not contaminate ponds, waterways or ditches with the product or used container.

Marketing Authorisation Number

Vm 01708/4435

Date of the first authorisation or date of renewal

24 January 1994

Date of revision of the text

November 2015.

Any other information

For animal treatment only. Keep out of the sight and reach of children.

Legal category

Delivery Information

How quickly do you deliver?

Under almost all products on our website is an Estimated dispatch time, check this for a delivery prediction specific to the item you are looking to purchase. These badges are updated live based on the stock levels we have and also those of our suppliers - so are usually very accurate, but cannot be guaranteed. In more general terms, we aim to dispatch all orders within 1 working day of receiving payment (and a prescription if required). If we cannot do so within 3 working days we will contact you by email.

What do you charge for delivery?

For UK delivery, we charge the following:

Order Total Weight Delivery
£0-£28.99 Under 2kg £2.99
2kg+ £4.99
£29-£38.99 Under 2kg Free
2kg+ £4.99
£39+ Under 2kg Free
2kg+ Free

Prices quoted are for delivery to all parts of mainland UK except certain Scottish postcodes (where the price is higher for items sent by courier. Delivery of food abroad (including Channel Islands, N. Ireland and other islands around the UK) is charged at a higher price and free delivery is not available. Temperature controlled products are also not always subject to the standard and/or free delivery options.

For full information on our delivery charges, including prices on heavy deliveries to Scotland and abroad, see our delivery information page.

We can deliver most items to all around the world, but prices do vary. To find the exact cost of shipping your item, and to see all options available, follow these steps:

  1. Put the items you wish to order in your basket
  2. Proceed to checkout and enter your delivery address, including country
  3. Delivery information including price will automatically update to what is available to you

Delivery of aerosols

Due to restrictions aerosols can't be sent by Royal Mail. We appreciate your understanding.

Delivery of temperature controlled items

Some products, such as non-ambient items and frozen food, need to be delivered in insulated packaging to prevent them from getting too warm (or too cold) during transit from us to you. Purchasing any of these items in your order will result in a £1.99 charge being added to the total to cover the high cost of the insulated packaging materials. You only pay the £1.99 once per order, regardless of how many temperature controlled items you purchase in that order.

How do I cancel or return an order?

Please call us as soon as possible if you need to amend or cancel an order on 01582 842096. If your order has been processed for dispatch we will be unable to cancel or amend the order. You will however be able to return your product for a full refund*.

To return an item, you must contact us by phone or email to arrange this BEFORE posting any product back to us. We will explain the process at this stage for you.

*For full details on returns, see our terms and conditions page.

Reviews (2)

Q & A

Below are some recent questions we've received regarding Panacur 10% Suspension, including answers from our team.

5 November 2019 at 1:47pm

Rape worm


does panacur 10% suspenssion treat for tape worms in horses?

  • Website Content Developer


Thank you for your question.

Panacur does not treat tapeworm, so we would suggest a double dose of Strongid p.

Hope that helps,