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Zimecterin (Ivermectin) Paste 1.87%, 0.21 oz (6.08g)
Retail: $27.99
Retail: $27.99
Price: $19.91 Save: $8.08

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estimated: $ 19.91

Availability: Over the Counter
Availability: Over the Counter
Merial Item #: 1010308 -

Zimecterin Gold (Ivermectin/Praziquantel) Paste, 0.26 oz (7.35g)
Retail: $50.99
Retail: $50.99
Price: $35.92 Save: $15.07

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estimated: $ 35.92

Availability: Over the Counter
Availability: Over the Counter
Merial Item #: 1010948 -

Zimecterin is a broad-spectrum wormer and parasiticide. With one dose, it removes adult large strongyles, adult and fourth-stage larvae small strongyles, adult and fourth-stage larvae pinworms, adult and third- and fourth-stage larvae roundworms, adult hairworms, adult large-mouth stomach worms, adult and fourth-stage larvae lungworms, adult intestinal threadworms, oral- and gastric-stage bots, Summer sores caused by Habronema and Draschia spp cutaneous third-stage larvae, and dermatitis resulting from neck threadworm microfilariae. This product is also available as Zimecterin Gold for the additional treatment of tapeworms.

Zimecterin removes numerous types and stages of worms and bots in horses. It is also available as Zimecterin Gold to treat all the same internal parasite infections as well as tapeworms. Zimecterin delivers its dewormer medications in an easily administered oral paste.

Benefits of Zimecterin:

  • Powerful broad-spectrum parasiticide
  • Treats large and small strongyles, pinworms, roundworms, hairworms, large-mouth stomach worms, lungworms, intestinal threadworms, bots, some Summer sores, and dermatitis caused by neck threadworm microfilariae
  • Zimecterin Gold also treats tapeworms in addition to the above-named parasites
  • Not a benzimidazole or an organophosphate, so can treat some non-susceptible strains
  • Helps prevent complications and treatment needs associated with internal parasites
  • Effective with a single administration
  • Conveniently packaged in oral syringes that treat horses of up to 1,250 lbs.
  • Zimecterin is safe for use in pregnant, nursing, breeding, elderly, and young horses
  • Zimecterin Gold is safe for use in horses at least 2 months of age (but its safety has not been established in pregnant, nursing, or breeding horses)
  • FDA-approved for indicated uses

Zimecterin Gold is for horses at least 2 months of age. Use in younger animals may be harmful to health. Do not use in dogs or other animals. Doing so may cause death.

Read all manufacturer-provided directions and warnings prior to administration.

Use as recommended by your veterinarian.


  1. Give 91 mcg ivermectin per pound of body weight (and 454 mcg praziquantel per pound of body weight with Zimecterin Gold). The contents of one syringe is the appropriate dose for a 1,250 lb. horse. Each weight denomination on the included syringe doses a 250-lb. body weight increment.
  2. Turn the plunger's knurled ring to the right, positioning the nearest side of the barrel at the correct dosage as determined by the animal's body weight.
  3. Ensure the horse's mouth does not contain any feed.
  4. Remove the cover from the tip of the syringe.
  5. Insert the syringe between the teeth so that its tip is over the back of the tongue.
  6. Depress the plunger all the way to administer the pre-set dose.
  7. Elevate the horse's head slightly for a few seconds.
  8. Wash your hands with soap and water.

Frequency of Use:

Zimecterin works with one dose. Your veterinarian should advise you about an appropriate treatment schedule based on your location, individual risk factors, and other considerations. Treat foals initially at 6 to 8 weeks old, and then begin the veterinarian-recommended treatment regimen.


Keep out of reach of children and animals.

Store Zimecterin products at controlled room temperature.

It is a violation of Federal Law to use this product in a manner inconsistent with its labeling.


Keep Zimecterin and Zimecterin Gold out of reach of children and animals. Do not use or store in or near open flame or heat.

Zimecterin products are only for horses. Zimecterin Gold is not for horses younger than 2 months of age. Do not use in other animals. Zimecterin may cause severe adverse effects in other species, including death in dogs. Not for human use. 

Follow your veterinarian's recommendations for safe and effective use of this product.

CAUTION: Do not administer to horses intended for consumption.

The safety of Zimecterin Gold in pregnant, lactating, and breeding horses has not been established.

Wash hands with water and soap after administering Zimecterin.

Zimecterin products may irritate the eyes.

Talk to your veterinarian about any side effects you notice.

Zimecterin Gold has in rare instances caused temporary swelling and irritation of the mouth, lips, or tongue.

When used in horses with severe neck threadworm microfilariae infections, Zimecterin can result in itching and swelling. This is likely due to the death of large numbers of the parasite at one time. Seek treatment of symptoms from your veterinarian.

Other simultaneous treatment may be necessary for Summer sores with extensive tissue changes.

Talk to your veterinarian about how to effectively prevent subsequent infections.

Zimecterin may harm water-dwelling organisms. Do not contaminate ground or surface water. Dispose of syringe in an approved landfill or by incineration.

Warranty and Manufacturer Information:

Marketed by Merial Limited, 3239 Satellite Blvd., Duluth, GA 30096-4640 USA

Merial Limited, a company limited by shares registered in England and Wales (registered number 3332751) with a registered office at PO Box 327, Sandringham House, Sandringham Avenue, Harlow Business Park, Harlow, Essex CM19 5TG, England, and domesticated in Delaware, USA as Merial LLC.

ZIMECTERIN® is a registered trademark of Merial Limited.

Copyright 2005 Merial Limited. All Rights Reserved.


U.S. Pat. 4,199,569

NAC No.: 1111092

Zimecterin Gold:

U.S. Pat. Pending

NAC No.: 11111032

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