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
Featured Advice from Our Experts
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
- stomach worms
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.
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%)
"Can't beat it!!"
Excellent quality. Great price. Thank you, Jeffers!!
and the mules seem to like it. Few fight me anymore.
"Good worm are"
The Price is Right
"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.
"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.
"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.
Great price for great quality stuff. Will buy again
"Best price ever!!"
We have a number of horses and this is the best price on a quality product.
"Very good product and price!"
Happy with purchase
Ivermectin works great on pastures horses. Price is do reasonable
"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.
the price is great. my husband is a veterinarian and he said it had everything that the horse needed as part of a rotational program
"Jeffers horse wormer"
Excellent product for the price!!! just read the label, same ingredients, at a fraction of the price of the others !!!!
I use this every 4 months and rotate with Strongid so I worm every 2 months. The product seems to work well as long as you use it when you are supposed to.
Great price and have been buying it for about 8 years. Jeffers has been wonderful to deal with. Very fast shipping.