Panacur Wormer for Horses and Donkeys

Panacur Wormer for Horses and Donkeys
Granules 22% 10.2g Sachets (Treats 300kg Horse and Donkey) Ā» Single
Guard 10% Oral Suspension (225mls) Ā» Unflavoured
Paste Syringe (Treats 600kg Horse and Donkey) Ā» Apple & Cinnamon

Images are for illustration purposes only. Packaging may change from time to time and images on our website may or may not be updated.

  • Granules 22% 10.2g Sachets (Treats 300kg Horse and Donkey) Ā» Single Ā£7.59
  • Guard 10% Oral Suspension (225mls) Ā» Unflavoured Ā£34.45
  • Paste Syringe (Treats 600kg Horse and Donkey) Ā» Apple & Cinnamon Ā£13.85

Selection of 3 products from

£7.59 to £34.45

Description

Panacur is a widely used and very popular broad spectrum wormer. Using the highly active Fenbendazole, Panacur treats and controls migrating larval and adult stages of all main species of Roundworms, in addition to destroying worm eggs. Given as a single dose or over five days for best results against migrating and encysted larvae, Panacur offers reliable results and is available in an unflavoured paste form. POM-VPS.

The presence of worms can be checked in your horse using a Worm Testing Kit.

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All prices include VAT where applicable.

Medication Datasheets

Reviews (136)

Summary of Reviews for Panacur Wormer for Horses and Donkeys

Overall 5
Effectiveness
Ease Of Use
Value For Money
Absence Of Side Effects
136 out of 136 (100%) customers would recommend this product.
5 stars (92 reviews)
4 stars (42 reviews)
3 stars (2 reviews)
2 stars (0 reviews)
1 stars (0 reviews)

Only verified purchasers of this product can leave a review.

Administration
Verified Purchase

By Nadine Crowson on 6 May 2026

Product arrived promptly but Oscar is suspicious of medication sprinkled on his food resulting in him not having it. I therefore used a syringe to administer the granules adding it to water and then with the help of a friend able to give it making sure he didn’t lose any. Only possible with someone holding his head collar.

Customer recommends this product

Fab service
Verified Purchase

By Karen Smith on 14 March 2026

Good service easy to navigate the site, quick delivery. The workers are exactly as described.

Customer recommends this product

Horse wormers
Verified Purchase

By Susan Cropper on 20 February 2026

Easy to use

Customer recommends this product

All good - Buy with confidence
Verified Purchase

By Michael McBain on 4 November 2025

Top product

Customer recommends this product

Horse that dislike syringe wormers
Verified Purchase

By Jo Webb on 6 October 2025

Great product, palatable in feed, wormed Lottie easily as she is very difficult to use a syringe type wormer.

Customer recommends this product

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Q & A

Below are some recent questions we've received regarding Panacur Wormer for Horses and Donkeys, including answers from our team.

13 August 2025 at 8:34am

Foals

Ellie

Is it suitable for 5 month old foals

  • VioVet Staff

Yes, Panacur Wormer for Horses and Donkeys is generally safe for 5-month-old foals, but the dosage and formulation should be carefully followed.

24 June 2025 at 11:30am

What are the ingredients please

Sarah Broome

What are the exact ingredients, please?

  • VioVet Staff

Syringes containing 24g of an 18.75% paste formulation of fenbendazole and 0.2% apple and cinnamon flavour as a ready to administer oral anthelmintic for horses. 1g Panacur Equine Paste contains 0.187g active ingredient Fenbendazole PhEur.

11 May 2025 at 8:26pm

Is it safe for cats if dosed correctly?

Jennifer Mclean

I work in cat rescue, costs are always a priority for us, but not above welfare of course! Panacur 10% liquid suspension for cats appears to be the same formulation as the 1ltr version for horses, so my question is if dosed correctly for the weight of the cat is it safe for us to panacur 10% liquid suspension for horses? It is drastically cheaper

  • VioVet Staff

No this is not safe for use in cats. Please use the panacur for cats & dogs.

3 April 2025 at 9:49am

Thread worms.

Sandra McCloy

  • VioVet customer since 2020
  • From: Sir Fynwy, United Kingdom

What is the best all round wormer that will treat thread worms.

  • VioVet Staff

Ivermectin is a broad-spectrum anthelmintic that targets a variety of internal parasites, including threadworms. It works well against Strongyloides westeri, and it's often used for both adult and foal horses.

  • Examples:

    • Eqvalan (Ivermectin)

    • Zimecterin (Ivermectin)

    • Noromectin (Ivermectin)

These products will typically treat a wide range of parasites, including roundworms, bots, and threadworms, making them a good choice for an all-round wormer.

10 March 2023 at 12:08pm

Missed dose

VioVet Visitor

Giving the 5 day course, been giving it 24 hours apart. He’s had 4 doses, each 24 hours apart, but life intervened and I’m going to be a couple of hours late up the yard. Is this a problem ? What should I do

  • VioVet Staff

If you are performing the 5 day course and a dose is missed then officially this is outside of the licensing as per the datasheet. We therefore unfortunately cannot advise whether this will have been effective or not.
Theoretically though, missing one day accidentally and then carrying out this dose 1 day late (for example 3 days of dosing, 1 day off, then 2 days of dosing) is unlikely to make a significant difference. In this instance I recommend just continuing the daily dosing until 5 days in total has been dosed. I cannot say for certain though that this will provide an adequate dose course.

20 February 2023 at 1:31pm

Roundworm

Caitlin

I have found roundworms in my horses poo today (only purchased 2 weeks ago). They was 2 and they are approx 2 inches long - would I be better giving a paste or giving a 5 day course of panacur?

Asking as to avoid colic if possible if the mare has too many worms

  • VioVet Staff

I recommend reading our blog on worming. The correct wormer to use and when depends on the season. It is also always best to test for worms rather than just worm anyway. A link to this blog can be found here.

2 November 2022 at 9:21am

Is it harmful to dogs

Jo

I have a puppy who sadly tries to eat the pony droppings…would panacur in the droppings harm her?

  • VioVet Staff

The dose given to horses is far greater than that of dogs. Whilst Panacur is safe for use in dogs and so it is unlikely this could cause an issue, it is strongly advised to prevent them eating the droppings after dosing in case what they ingest is a significant overdose.

It is advised to prevent your pup eating horse feaces anyway as certain parasites can be ingested when doing this.

1 October 2022 at 3:43pm

Foal dose

Emma

Hello. I'm looking to buy the panacure paste for a foal we are getting later this month. What dose would I use? She's a section A foal so unsure what weight she will be until I can weight tape her when she arrives. Would one tube of paste be enough for the 5 day course?

  • VioVet Staff

The foal dose is as follows according to the datasheet:
Routine treatment: Administer orally, 1 Syringe per 600 kg bodyweight
One syringe will be enough for this.

If you wish to carry out the 5 day course then you will need to give this same dose but once daily for 5 days:
For the treatment and control of migrating and tissue 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 1 syringe per 600 kg bodyweight daily for 5 days.
However this is likely unecessary as it is not the correct season to treat for encysted strongyles (these need covering in Winter). If you still wish to do the above then the number of syringes you need will depend on the weight of the foal. If 100kg or less then this will be fine, if 200kg then you will need 2 syringes etc.

It may be best to wait untuil you have the foal to weigh before ordering. If you wish to treat routienly though then one syringe should be fine. The syringe is graduated so you can dose for the exact weight, you should not give the entire syringe unless your horse is 600kg.

30 August 2022 at 1:38pm

Can the paste be used over 5 days?

Horse sensitive to wormers

My horse is very sensitive to some wormers [colic, severe illness and loss of appetite etc.] She has always been fine on the 5 day guard, but now won't eat it. I've tried both flavours. Can I use the paste but split into 5 days or do I have to try to thicken the 5 day guard to enable syringing? Thank you

  • VioVet Staff

Yes, according to the datasheet you can use the syringe paste for the 5 day course. The datasheet for this states the following:
Five day course:
For the treatment and control of migrating and tissue 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 1 syringe per 600 kg bodyweight daily for 5 days.

This is however is the same strength per dose as the single treatment (7.5mg/kg). The datasheet for the Panacur Guard actually advises this same dose of 7.5mg/kg for the 5 day course. I therefore recommend just using the single dose treatment of the paste if you are just looking to worm routinely, this is the same dose as what you have been doing each day with the Panacur Guard.

14 June 2022 at 10:25am

Worming a Foal

Carol

At what age can I worm my foal with Panacur

  • VioVet Staff

There is no minimum age for the use of Panacur in a foal. It is usually advised to start worming at one month old and Panacur is one of the recommended products to do this with.

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