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Item # 02075
  • Water resistant protection for the treatment of thrush
  • Effective for treatment of thrush, hoof rot and ringworm
  • Contains the active ingredient Copper Naphthenate (37.5%)
  • 16 fl. oz. squeeze top bottle
  • Made in the USA
  • We're sorry, this item is no longer available.

    We recommend item #21475 Mustad Thrush Buster 2oz.

full description
Item Availability Quantity Price
not available

Recommended as an aid in treating horses and ponies with thrush due to organisms susceptible to copper naphthenate.

Clean the hoof  thoroughly, removing debris and necrotic material prior to application of Kopertox®. Apply daily to affected hoofs with a narrow paint brush (about 1") until fully healed. Shake well before using

Do not allow runoff of excess Kopertox® onto hair since contact with Kopertox® may cause some hair loss.

Note- Kopertox® is easily removed from hands, clothing and surfaces with light grade fuel oil or any type of lighter fluid.

Copper Naphthenate...37.5%
Inert Ingredients...62.5%


For animal use only. Do not contaminate feed. Avoid contact around eyes. For use on horses and ponies only. Harmful if swallowed. This product is combustible, keep away from children and open flame.




by PowerReviews

(based on 3 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 3 customers

Displaying reviews 1-3

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I definitely would buy this product again.

By Nathalie

from UK

About Me Sporty

Verified Buyer


  • Effective for what it stands for


  • Strong Odor

Best Uses

  • Daily Use

Comments about Kopertox:

I have used this product on my horse in Hong Kong during hot and humid weather. It's very effective for all sorts of hoof issues. I had to buy it from the USA, since now living in England they don't sell it!!!


Price reflects the product


from Binghamton, New York

Verified Buyer



    • Messy

    Best Uses

      Comments about Kopertox:

      Good product for the price, however, ThrushBuster is much more effective.

      (1 of 1 customers found this review helpful)


      Perfect for white line

      By I LOVE My Horse

      from Chagrin Falls, Ohio

      Verified Buyer

      Comments about Kopertox:

      I rates this a 4 out of 5 stars due to the application mess with the bottle. Great product in side the bottle. My ferrier recomended this for white line. It will stick well to a dry hoof and seal out the wetness so hoof can heal. The top dispensing hole is not very acurate. The Kopertox will splash on hands, floors, all over the bottle etc. Kopertox should put a top on that works like a hair coloring bottle. That would make the application a lot better. Other than the product being messy it will stick with no problem to a dry hoof and last about a day depending on the turn out surface.

      Displaying reviews 1-3

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