Best Wormer for Pinworms in Horses

Jessica McDaniel
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Pinworms (equine intestinal threadworm) are a common parasite of adult horses. The pinworm infection is most commonly found in adult horses. However, baby horses that have not been dewormed frequently (twice a year) can also sometimes have pinworms.

Pinworms are easy to identify if you know what to look for. But sometimes they cause symptoms in adult horses without showing any external signs of an infestation. Knowing what to look for helps just as much as seeing the worms.

Pinworms are worms that live inside the body of the horse and are transmitted by contact with an infected horse’s feces or environment.

Worming the herd selectively with either wide spectrum dewormer or a dewormer specific for pinworms is the most effective way to control pinworms in horses.

Ivermectin Paste DewormerBest OverallIvermectin Paste Dewormer
Durvet Pyrantel Paste WormerBudget PickDurvet Pyrantel Paste Wormer
SCHERING/INTERVET D PANACUR Dewormer Horse Paste 10%Upgrade PickSCHERING/INTERVET D PANACUR Dewormer Horse Paste 10%

1. Ivermectin Paste Dewormer

Our rating: 9 / 10

Ivermectin Paste Dewormer

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  • A low-drench formula that is safe for pregnant and nursing mares
  • Highly palatable
  • Easy to administer
  • Have an excellent safety profile
  • Low-volume dosing
  • Deworming at an affordable price


  • Not to be used on foals under 6 months
  • The packaging could be less bulky

(332ml – Lime Mix / 333g

The Ivermectin Wormer is part of the horse wormer kits that treats all common equine worms: roundworms, pinworms, bots, tapeworms and grubs with a single application. This product can be used on horses and ponies over the age of 6 months.

The recommended dose is 1g orally per 100lbs bodyweight. This equates to 5ml per 500lbs bodyweight. This equates to 33.3ml (approximately 34 drops) per 1000lbs bodyweight.

2. Safeguard Horse Dewormer

Our rating: 9 / 10

Safeguard Horse Dewormer

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  • Kills pinworms
  • Strengthens the digestive tract
  • Strengthens the circulatory system
  • Eases the immune system
  • Provides relief from inflammation
  • Relieves pain, swelling and fever
  • Disinfects wounds
  • Soothes insect bites
  • Relieves itching
  • Lightens fine hair

Horses are stubborn animals — they do everything according to their own will. Sometimes we don’t know what they may need, or if their dietary needs are met according to their health status. It’s common that owners don’t know how to choose the best wormer for horses and how to apply it, or if they even have noticed that their animals wouldn’t be in their “best health.”

3. SCHERING/INTERVET D PANACUR Dewormer Horse Paste 10%

Our rating: 9 / 10


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  • Contains 10% emodepside and praziquantel
  • Topical paste
  • No mixing required
  • Feed directly to your horse


  • Makes your horse taste bitter
  • Stomach upset may occur
  • Not suitable for administration to mares in a breeding situation

Your horse can get a variety of worms including pinworms in horses. Dewormers can help eliminate those annoying worms that make your horse weak and slow and can even cause colic.

Dewormers can treat ewes, stallions, and geldings. A dewormer like this FDA-approved paste eliminates worms in 3 to 4 days. This particular wormer contains 10% emodepside, an ingredient developed by Schering-Plough, and praziquantel in a liquid paste that’s easy to apply directly to your horse. In just 3 days, your horse will be free from worms.

Eliminating worms from your horse can increase his appetite and encourage him to work out in the pastures more. Pinworms are tiny threadworms that affect the respiratory and digestive tracts, making both difficult over time. Dewormers like this help your horse get over pinworms while keeping your other farm animals free of worms at the same time.

4. Durvet Pyrantel Paste Wormer

Our rating: 9 / 10

Durvet Pyrantel Paste Wormer

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  • Treats cattle, sheep, swine. and horses
  • Caution: Consult a veterinarian before using this product in debilitated or aged animals. extra-label drug use in lactating dairy cattle is prohibited under the FDA Food Animal Residue Avoidance Databank (FARAD) program.
  • Safe and fast-acting
  • Kills and removes entire roundworms, hookworms, lungworms, tapeworms and whipworms in eight hours.


  • For large animals
  • Not safe to use on sheep and swine under six months of age.


As is well-known, worms are a common and serious problem for horses, making infections become a routine matter in many equestrian facilities. In the US alone, over 20 million worm cases are seen annually in horses and 20-25 million doses of wormers are administered to them.

Here is an excellent product that has been proven safe and effective against many types of worm problems that affect horses. This wormer is safe for use with horses, works fast and is licensed for use on various equines.

5. Merial Zimecterin Gold Dewormer Paste

Our rating: 9 / 10

Merial Zimecterin Gold Dewormer Paste

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  • Relatively easy to administer
  • Not very expensive
  • Available in numerous dosages
  • Available in several dose-volumes
  • Rapid results (within 24 hours)

If you have horses that need to be dewormed for pinworms, the Merial Zimecterin Gold Dewormer Paste is highly recommended for this procedure.

A dewormer is an excellent way to prevent disease and parasites, and this product is designed to deliver on these promises. It works to control nematodes in horses.

It’s packaged in a syringe that’s easy to administer. The dosage is determined by the horse’s weight, but it’s administered over several days to prevent stress.

Frequently Asked Questions (FAQ)

Which Wormer kills pinworms in horses?

Usually, you can treat these types of worms with a wormer that has a different, more specific, active ingredient than the usual ivermectin-type ones. So check the label to make sure it has a product called Avermectin on it. Then search for the active ingredient part of the product and make sure it contains avermectin.

How do you get rid of pinworms in horses?

Pinworms are easily spread through contact with infected horses in addition to the lack of proper bedding and tack hygiene and good barn management. Pinworm eggs can live for up to three months outside of a host so you need to treat all horses and paddocks at the same time.

Pinworms can be easily treated with medications for livestock, such as moxidectin.

What is the fastest way to get rid of pinworms?

Pinworms are a very common parasite in horses and one of the hardest to eliminate. Topical treatment given orally by worming paste or gel, as well as injectable, application onto each pinworm is good for controlling infections. However, they may not effectively eliminate the infection because the parasite has to mature in the host’s intestines to lay eggs. As such, the only effective way to the root of the issue would be to systematically eliminate all of the worms.

What is the best wormer for tapeworms in horses?

What is a tapeworm? – A tapeworm, a parasite residing in the intestine, is a long, flat, and ribbon-like (or segmented) worm, that can be anywhere from one inch in length to many inches.

The tapeworms common to domestic horses are the small intestinal tapeworms (SIA), the largest of which is Dipylidium caninum. SIA are not the only worms that may be found in the intestinal tract; roundworms and lungworms are other intestinal parasites that may be found in horses infected with tapeworms.


The most popular way to pinworms in horses is to treat with some form of dewormer. Basically, there are two kinds of dewormers, those that are specific to worm species and those that aren’t. We feel that the best dewormer for pinworms in horses should be one that is specific to the species, but equally important is to note that using a dewormer to treat pinworms in horses might not be effective. Now let me tell you why.

Our Recommendation

Ivermectin Paste DewormerBest OverallIvermectin Paste Dewormer
Durvet Pyrantel Paste WormerBudget PickDurvet Pyrantel Paste Wormer
SCHERING/INTERVET D PANACUR Dewormer Horse Paste 10%Upgrade PickSCHERING/INTERVET D PANACUR Dewormer Horse Paste 10%