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Eqvalan Horse Wormer

Eqvalan Horse Wormer
Eqvalan (Treats 600kg Horse and Donkey) » 1 Syringe
Eqvalan Duo (Treats 600kg Horse) » 1 Syringe

  • Eqvalan (Treats 600kg Horse and Donkey) » 1 Syringe £5.99
  • Eqvalan Duo (Treats 600kg Horse) » 1 Syringe £12.26

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£5.99 to £12.26


Eqvalan Horse Wormer Oral Paste for horses containing 1.87% ivermectin.

For the treatment and control of adult and immature roundworms, lungworms and bots. Does not treat tapeworms, use Eqvalan Duo for tapeworm treatment.

Safe for use in pregnant mares and young foals. Each syringe treats up to 600kg bodyweight.

Foals should be treated initially at 6 to 8 weeks of age and then every 8 weeks until they are 18 months old. Older horses should be treated every 8 to 10 weeks if required .

Eqvalan Duo Horse Wormer contains 1.55% ivermectin and 7.75 praziquantel in each syringe.

For the treatment and control of tapeworms, large and small strongyles, hairworms, pinworms, roundworms(ascarids), neck threadworms, intestinal threadworms, large-mouth stomach worms, bots, lungworms and cutaneous onchocerchiasis in horses.

Ensure you dose correctly according to your horse's bodyweight, if you are unsure of your horse's weight see our guide.

Always read the instructions before use.

Need help or advice? Contact us:

  • Landline: 01582 842096
  • Mon - Fri: 8:30am - 5:00pm
  • Sat: 9:00am - 1:00pm (Collections only)
  • Email: [email protected]

All prices include VAT where applicable.

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, such as Insulin, 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. The majority of light weight orders (less than 1.5kg) can be delivered for a flat rate of £10. For an accurate estimate of the delivery charge, please put the items you require in your basket and use the "Estimate Delivery" system on the shopping basket page (you only need to enter your country and postal/zip code) for a quick quote. For deliveries to the USA you may need to go to the checkout page and enter your full address to get a quote (as some services need your state in order to quote too). For more information on international deliveries, please see our delivery information page.

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 insulin 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 (142)

Q & A

Below are some recent questions we've received regarding Eqvalan Horse Wormer, including answers from our team.

22 April 2017 at 10:55am

Double dose


Does the duo need to be given as a double dose to protect from tapeworm? Thanks

  • Veterinary Advisor

It is suggested that Pyrantel based wormers such as Pyratape P should be given at double the normal dose to treat for tapeworm. However the active ingredient against tapeworm in Eqvalan Duo is Praziquantel which does not require double dosing.

8 February 2017 at 11:10pm

Is the Duo wormer safe for mares due to foal in 2 months time?


Is the Duo wormer safe for mares due to foal in 2 months time?

  • Veterinary Advisor

Yes Eqvalan Duo is fine to give to mares in foal after the first 3 months of pregnancy- not because it is unsafe but due to lack of clinical data in early pregnancy.

5 July 2016 at 6:47pm



  • VioVet customer since 2014
  • From: Midlothian, United Kingdom

Hi I wormed my new pony last week I could only get strongid P from my local feed store anyway I found bot larvae in her stools can I worm again so soon and is this the wormer I should use?Thanks

  • Non-Executive Director

Eqvalan is effective against bots. It is also a very different type of wormer to Strongid P and so it is fine to use again after just 1 week.

23 December 2013 at 12:53pm

What worms do these kill?

Peter Canning

What worms do these kill? Which ones are most important?

  • Brand Manager

Eqvalan will kill both adult an immature stages of many types of worms (a full list can be found on the data sheet in our description section) but there are two main groups we need to target- roundworms (nematodes) and tapeworms (cestodes). Roundworms include ascarids which most horses develop a good immunity to before in their first few years but have the potential to be very damaging in the first year of life, so routine worming is vital for the young animals. Of two types of redworm, large strongyles are now rare and do not often cause a problem as they are easily controlled. Small redworm (cyathostomes) on the other hand are much more difficult to control and may cause severe colic in spring as their larvae emerge from their dormant phase in the lining of the gut. It is important to target these larvae in winter months or early spring. The L3 'hibernating' or 'encysted' larvae are resistant to most wormers but when they emerge, the L4 stage larvae are killed by the ivermectin in Eqvalan. Eqvalan also remove pinworm infestations.

We would advise sending off regular dung samples for egg counts, as worming when it is not needed promotes development of resistance in the roundworms. You should also be certain of your horse's weight, and a weigh tape is a simple way to calculate this.

Eqvalan Duo also contains praziquantel to kill tapeworms such as A.perfoliata. It is considered okay to routinely treat for tapeworm in spring and autumn with Evalan Duo.

23 December 2013 at 12:24pm

Differences between Eqvalan and Eqvalan Duo

Jayne Fielding

Please can you tell me the difference between the two wormers and when I should use them?

  • Brand Manager

Eqvalan contains ivermectin, which is effective against all roundworm including L4 stage encysted small redworm larvae (they hide in the gut wall and emerge in spring, causing colic if infestation is high). Ivermectin is also effective against botfly larvae 'bots'. Eqvalan Duo contains ivermectin AND praziquantel to target tapeworms as well as all roundworms and bots.

  • Eqvalan Duo should be used in spring (March/April) and autumn (September/October) to kill any tapeworm present among other worms and bots.
  • Eqvalan is ideal for targeted worming in winter (November to February) to rid the horse of  immature larvae, bots and roundworm and for strategic worming in the summer months (May-August) if required -indicated by a worm egg count.
  • Strategic worming involves sending off dung samples for an egg count, and only worming if the results indicate the horse has a high burden of worms. Horses naturally have immunity to some worms and a low level of infection is 'normal'.

For more worming advice and information on rotating wormers, read our post 'A Quick Guide To Horse Worming'