Eprinex Pour-On for Beef & Dairy Cattle

Item #17185

$45.39 to $1,129.99

Eprinex Pour-On for Beef & Dairy Cattle

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Eprinex Pour-On Cattle Wormer is for use in beef and dairy cattle as an aid in the treatment and control of roundworms, lungworms, grubs, sucking and biting lice, chorioptic and sarcoptic manage mites and horn flies. Read More

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Eprinex Pour-On Cattle Wormer

Free Pour-On Applicator
With the purchase of a 2.5 L, 5 L, or 20 L Eprinex.
Limit 1 per order. While supplies last. Ends 10-12-2020.

Apply along back at 5 mL per 100 lb body weight. Measuring cap makes dosing quick, easy, and accurate.

Features & Benefits of Eprinex:

  • broadest-spectrum parasite control product available
  • kills 39 species and stages of internal and external parasites, including roundworms, lungworms, grubs, mange mites, horn flies, and biting and sucking lice
  • backed by Merial's Satisfaction Guarantee
  • weatherproof formula
  • no meat withdrawal or milk withholding
  • safe to use on calves, heifers, dry cows, lactating cows and bulls

Applicator needed for 2.5, 5, and 20 L ONLY.

  • 250 mL treats 5,500 lb
  • 1,000 mL treats 22,000 lb
  • 2.5 L treats 55,000 lb
  • 5 L treats 110,000 lb

No hazardous shipping charge!

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

View manufacturer and/or label information


  • Brand: Merial
  • Type: Pour-On
  • Size: 2.5 L,5 L,20 L,250 mL,1000 mL (1 Liter)
  • Ingredient: Eprinomectin

Reviews (8)

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  1. 5.0 out of 5 stars

    "Great Wormer"

    Great product for worming cows!

  2. 5.0 out of 5 stars

    "Quality product"

    We have used numerous wormer on our purebred and commercial cattle eprinex is by far a good product that we've had great success with. Less evidence of parasites when we check our cattle than other pour one.

  3. 5.0 out of 5 stars

    "Off label use"

    I have been using Eprinex Pour On for at least 15 years very successfully on rabbits. It is an off label application, but it is better than any topical product I have tried against internal and external "bugs" I use it on breeding stock and my rabbits never have any problems.

  4. 5.0 out of 5 stars


    I have been using this product off label for about 20 years. It has completely eliminated ear and neck mites and internal parasites. It is applied to adult breeding stock and keeps my rabbit colony pest free and healthy.

  5. 5.0 out of 5 stars

    "Repenting Farmer"

    I really like this Pour-on Ivomec Eprinex, since it gives a variant chemical component to combat the various pests. I also like the cheaper price from Jeffers.

  6. 4.0 out of 5 stars

    "As easy as it gets"

    The pour-on Eprinex with a dosing gun lets us treat the cattle without having to run everyone through the chute.

  7. 5.0 out of 5 stars

    "Excellent product"

    This is a excellent product for beef cattle with calves and ones that are ready to deliver. Really kills the parasites and your animals will re-gain weight rapidly. Very safe product, there has been no side effects to the cows, or their calves.

  8. 5.0 out of 5 stars

    "Great wormer all around"

    I actually used this for my chicken, just used a really small dose, and it worked like wonders, a week after I used it their laying production increased, it not only killed worms it also killed lice and mites. Great Product!

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