Jeffers Ivermectin Horse Dewormer, Single Dose

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Jeffers Ivermectin Horse Dewormer, Single Dose

Jeffers Ivermectin (1.87%) is a broad spectrum horse dewormer used to aid in the control of large & small strongyles, pin worms, lung worms, roundworms and bots. Single Dose Read More

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What You Should Know About Horse Worms: Treatments, Causes & Info

Common types of worms and a description of each plus what to use to deworm when (printable rotation chart in link at bottom.)


Jeffers Ivermectin Horse Dewormer (1.87%)

Jeffers Ivermectin Horse Wormer (1.87%) is a broad spectrum dewormer for horses used to aid in the control of large & small strongyles, pinworms, lungworms, roundworms, bots and more. This new gel formula treats up to 1250 lbs in body weight, kills internal parasites and helps control 46 species and stages of worms and bots.

Jeffers Ivermectin for Horses Aids in the Control of:

  • large and small strongyles
  • pinworms
  • hairworms
  • threadworms
  • stomach worms
  • lungworms
  • roundworms

Also available in:

1 Year Horse Deworming Kit
Premium Horse Dewormer Pack

All horses should be included in a regular parasite control program with particular attention paid to mares, foals, and yearlings. Foals should be treated at 6-8 weeks of age and routine treatment repeated as needed. Consult a veterinarian for a control program to meet specific needs.

Note: May be used in horses of all ages, including mares at any stage of pregnancy. Stallions may be treated without adversely affecting their fertility.

View Jeffers Ivermectin Horse Wormer manufacturer and label information

Any use of a product that is not clearly defined on the label directions should be done only under the supervision of a qualified veterinary professional.


  • Brand: Jeffers
  • Active Ingredient: Ivermectin (1.87%)

Reviews (108)

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  1. 5.0 out of 5 stars

    "Great Product!"

    This is a great and very affordable product. When you have more than one horse, worming can get very expensive. This wormier is very affordable and easy to use, horses really like it and it works!

  2. 5.0 out of 5 stars

    "Luv this "

    Fast shipping, great product, my horses love the taste. Thank you jeffers

  3. 5.0 out of 5 stars

    "Jeffers Ivermectin"

    Super fast shipping. Easy to give to my horses unbridled in the pasture. Thanks!

  4. 5.0 out of 5 stars

    "Economical and Great Flavor"

    Our Percherons like the flavor of Jeffers Ivermectin. (Just wish it came in larger doses).

  5. 5.0 out of 5 stars

    "Can't beat it!!"

    Excellent quality. Great price. Thank you, Jeffers!!

  6. 5.0 out of 5 stars

    "great value"

    and the mules seem to like it. Few fight me anymore.

  7. 5.0 out of 5 stars

    "Good worm are"

    The Price is Right

  8. 5.0 out of 5 stars

    "Great Product at reasonable price"

    I had a gift card and needed help after logging into the website. The phone call was so helpful, I was relieved to get kind help and my order came in great time. The product does its job well and I so appreciate Jeffers.

  9. 5.0 out of 5 stars

    "Horses Like It"

    Our Percherons like this dewormer. It has a pleasant apple flavor delivered in a gel that our horses like. It’s a fight with other dewormers.

  10. 5.0 out of 5 stars

    "Horse didn't try to spit it out"

    It's Ivermectin. No reason to buy a name brand if it has the same main ingredient. I just bought it because it was cheap but to my surprise my horses took it no problem. They always try to spit out Equimax and Zimectrin. It doesn't smell as "mediciny" as the otherse either. My goal is not to "torture" them with dewormer so if it's cheap and palatable, I'll be buying this for the annual deworming.

  11. 5.0 out of 5 stars


    Great price for great quality stuff. Will buy again

  12. 5.0 out of 5 stars

    "Best price ever!!"

    We have a number of horses and this is the best price on a quality product.

  13. 5.0 out of 5 stars

    "Very good product and price!"

    Happy with purchase

  14. 5.0 out of 5 stars

    "Horse wormer"

    Ivermectin works great on pastures horses. Price is do reasonable

  15. 5.0 out of 5 stars

    "Jeffers Ivermectin - Great product"

    I have used many different brands of ivermectin over the years and this is by far my favourite. The horses don't mind the taste and the consistency is great - thin enough to dispense easily but thick enough that it stays put.

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