Parasites that interfere with the equine’s digestive system and, in a few cases, making your horse quite ill or, in very extreme cases proving fatal, are due to the worms. It is the reason behind the importance of the horse wormer. With an increase in the levels of drug resistance along with warm, milder winters and wet summers leading to an increase in the worm prevalence is the ongoing battle getting harder with the worms.

The following are the symptoms of heavy worm infestation:

  • Diarrhea
  • Colic
  • Sudden weight loss
  • The appearance of a ‘pot belly.’
  • Heavy scratching of the tail 

A vet has to be consulted if you notice any of these, especially when your horse has recently been treated for worm, as these symptoms can be signs of any other illness. The importance of worm control in these animals is essential as these symptoms can be of specific concern in the very young and significantly older horses.

Common types of worm

  • Large Strongyles ­

They can cause damage to arterial walls, impacting circulation, causing blood clots, and possibly cutting off the supply of blood to the intestine, leading to severe pain and death of tissue as the larvae of these worms migrate through the digestive tract. 

  • Small Redworms ­

These warms are becoming more common, leading to the demand for horse wormer with the climatic changes. Part of the worm’s life cycle involves becoming encysted in the gut wall. During colder winter months, they remain encysted until the temperature starts increasing in the spring, causing such a significant problem. The worms, emerge causing damage to the lining that can result in colic as the weather warms.

  • Ascarids ­

These worms do not usually affect older horses as immunity is developed around 18 months of aging, and these worms are also known as roundworms. It can lead to the lack of nutrients resulting in poor condition and diarrheas as they can create a blockage in the gut of the younger horses. These worms can result in scarring of the tissue that can affect respiratory function and performance in later life. It is evidence of specific importance if you are hoping to compete with your youngster in the future as the worms mature in the lungs of the lungs young horses.

  • Bots ­

These are specifically unpleasant to see as they rarely become a cause for any clinical diseases. To get the larvae matured in the stomach and be excreted at the end of winter, they lay eggs on the horse’s coat over the time of summer that is then picked up as they groom.

  • Tapeworm­

When the infective numbers are at a peak in the autumn months, the tapeworm is the most concern leading to the demand for horse wormer. Tape worm’s egg counts can be identified on a blood test from your vet or, more recently, on new saliva tests that can clarify whether or not tapeworm are present as the tapeworm eggs are hard to locate.

Horse Wormer Products

The following are the top 8 horse wormer products we have shortlisted for you have more than 13 years of experience in this niche:

 Ivermectin Dewormer Paste for Horses 

 Bimeda Equimax Horse Wormer Ivermectin 

Durvet Duramectin Equine Wormer Paste

Panacur Paste horse wormer PowerPac

Intervet Safeguard Dewormer Pellets for Horses

 Merial Zimecterin Gold Paste Horse Wormer

Anthelcide Equine Paste

Zoetis 23.6 GMS Strongid Paste

1. Ivermectin Dewormer Paste for Horses 

The fine paste is present in a single syringe that can treat one 1250 lb horse with a recommended rate of dose at 91 mcg ivermectin per lb (200 mcg/kg) body weight. Treating 250 lb body weight, each weight marking on the syringe of the horse wormer delivers enough paste. 1.87% of ivermectin is present in each syringe.


  • You can buy about 12 doses
  • It comes with apple flavor
  • A single dose can remove worms and bots
  • Durvet Ivermectin Paste 1.87-Percent 12-pack

2. Bimeda Equimax Horse Wormer Ivermectin 

For assistance in the diagnosis, control of parasitism, and treatment, consult your vet. Ivermectin paste controls the formation of parasites in horses and is quite effective for therapy.

The fine paste is present in a single syringe that can treat one 1500 lb horse with a recommended rate of dose at 91 mcg ivermectin per lb (200 mcg/kg) body weight. Treating 250 lb body weight, each weight marking on the syringe of the horse wormer delivers enough paste. 


  • This item is an Equimax containing 6.42 gm Paste
  • Used for Farming, Horse Care Equipment
  • A single dose can remove worms and bots
  • The paste will treat up to 1320 lb body weight

3. Durvet Duramectin Equine Wormer Paste

The fine paste is present in a single syringe that can treat one 1250 lb horse with a recommended rate of dose at 91 mcg ivermectin per lb (200 mcg/kg) body weight. Treating 250 lb body weight, each weight marking on the syringe of the horse wormer delivers enough paste. It can kill critical internal parasites with a single dose, including the bots and the arterial stages of S.vulgaris. On horses of all ages, including the mares, it can be used at any stage of their pregnancy. Without affecting their fertility, stallions can also be treated. 


  • Duramectin Paste offers effective treatment and control
  • Select the number of Tubes you need

4. Panacur Paste horse wormer PowerPac

It can be used to control the larger strongyles that are encysted in the third stage of hypobiotic, even in the late third stage and the fourth stage of cyathostome larvae, pinworms well as the Vulgaris in horses with the help of this paste of horse wormer.


  • Proven Safe
  • Works on a wide variety of parasites
  • Effective on encysted small strongyles
  • Reliable protection for foals
  • Combat resistance
  • Unique Mode of Action

5. Intervet Safeguard Dewormer Pellets for Horses

The alfalfa-based pellets, Safe-Guard Equi-bits (fenbendazole), allow you to deworm and feed in a single step. Equi-bits pellets control the larger strongyles, small strongyles, ascarids, and pinworms armed with fenbendazole, an active ingredient in all Safe-Guard products. For the horses, including foals and pregnant mares, Safe-Guard Equibits is safer.


  • The alfalfa-based pellet allows you to feed and deworm all in a single step
  • It is a single-dose treatment making rotational deworming quite simple!
  • One pouch will treat 1,250 lbs. 

6. Merial Zimecterin Gold Paste Horse Wormer

This horse wormer is effective in controlling 47 species and stages of parasites. These are approved for foals two months of age. Older Zimecterin Gold Paste horse wormer from Merial also contains 1.55 percent ivermectin. It also has 7.75 percent praziquantel, as each of these syringes can treat up to 1250 lbs of body weight. It can help to treat and control the tapeworms, more extensive and more diminutive strongyles, ascarids, hairworms, pinworms, lungworms, threadworms, and stomach bots. It can be used in ponies, foals, mares, as well as breeding stallions. 


  • Controls 47 species and stages of parasites
  • Each syringe treats around 1,250 lbs of ody wt
  • Approved for foals two months of age & older

7. Anthelcide Equine Paste

Oxibendazole for horses is present in this Anthelcide EQ paste horse wormer. Against the large strongyles, pinworms, ascarids, small strongyles, it is pretty compelling. For pregnant mares, breeding stock, foals, Anthelcide EQ horse wormer is relatively safe. At 100 lb increments of Oxibendazole, the dispensing syringe is calibrated.


  • Paste formulation of oxibendazole, a broad-spectrum benzimidazole anthelmintic.
  • Quite effective against every major equine internal parasite except the bots and tapeworms.
  • The syringe of paste treats up to 1,200 lbs.

8. Zoetis 23.6 GMS Strongid Paste 

43.9% of pyrantel pamoate for use in horses and foals to remove and control mature infections of larger strongyles, pinworms, small strongyles, and roundworms is contained in Strongid paste. 


  • 23. 6 gms
  • Each syringe treats 1 200 lbs

Worm Counts and Worm Prevention!

It is a good idea to take the time to manage your horse worming program with the use of worm counts and only to use horse wormer when the counts are high enough to raise a need for it, although owning horses makes life busy enough. To test your horse, the following are the three types of worm count:

1) Faecal egg count 

The worm count estimation is done based on the eggs seen in the feces after the fecal sample is taken. It does not indicate any encysted worms or tapeworm eggs as it is a practical test. It may not be required to worm, though dependent on the time of the year, it would be advisable to worm for tapeworm or encysted worms if less than 200 eggs per gram are present.

 2) ELISA Blood test –

It is used for the detection of tapeworm.

 3) EQUISAL Saliva test 

Determining the tapeworm burden, a more recent test measures the level of tapeworm antibodies.

The most effective way to manage equine worm burdens is with the use of worm counts and horse wormer, and it is known as the targeted strategic dosing. 

The following are the other ways in which you can manage and lower the risk of worm infestations:

  • Rotation of pasture

The field can rest in this way. In severe conditions, the number of larvae on the pasture will be reduced, and so you should aim to rest the pasture at critical times to make sure of optimal results, especially in severe conditions.

  • Mixed grazing

Reducing exposure to equines grazing in the same area as the worms are specific to the horse, sheep, and cattle and should consume the worms on the pasture without being affected. Any other livestock that is turned out will need to be on their horse worming plan regardless of any other management techniques used to keep the worm burdens to a minimum.

  • Removal of droppings

Picking on poo is not a job that is loved by many. But, it can be a great help to reduce the burden of your horse’s worm. Twice weekly, should you be performing this? It can be pretty beneficial here to reduce the size of the paddock.

What should you use and when?

You are yet to find the need to use a horse wormer after you have navigated the world of worm counting, got your gloves on, and have taken the poo out of the field.

So, what now? You need to speak to your vet, or a registered SQP at your local retailer as wormers are veterinary drugs that should be prescribed if you think you need to worm. You should answer questions that allow the correct horse wormer to be prescribed if you are ordering horse wormers online.

A suitably qualified person or SQP should pass a set of exams and have a general knowledge of the health of animals and the legal system to become registered with AMTRA to sell the wormers. By participating in continuing professional development to ensure the most accurate information that is to be passed on to the customer, SQP’s should also keep up to date.

Handy Hints!

  • Always have a note of what and when you have used something. It would help you to find the best horse wormer for your horse.
  • It would help if you always got your horse’s weight monitored. You can use a weight tape to make sure of the correct dosage, although the weighbridges are the best. Your horse should also be in the correct size as the health can be affected if your horse tends to become over or underweight.
  • Try to mix up a portion of feed and then feed the rest when the wormer has been eaten or sneak it by putting the wormer in a jam sandwich or a cored-out apple as giving horse wormer to a horse is a challenge itself.
  • To maintain the gut health after giving a wormer, as any drug can hurt the gut flora as you try to feed a course of pre and probiotics. If your horse shows signs of clinical disease to prevent any further loss of condition, it is of particular importance.