ZIMECTERIN®  
(ivermectin paste) 1.87%

Details

Treating your horse for internal parasites can be a difficult task. A horse dewormer can help. ZIMECTERIN horse dewormer provides effective treatment and control against the following important internal parasites in horses:

 

  • small and large strongyles
  • ascarids
  • bots
  • pinworms
  • threadworms
  • lungworms

 

For a full list of parasite species and stages, see the ZIMECTERIN Product Insert.

 

With broad-spectrum control, ZIMECTERIN dewormer provides effective treatment that horse owners can trust. Ivermectin for horses, the active ingredient in ZIMECTERIN was effective against benzimidazole-resistant small strongyles.1

 

You have options when it comes to a horse dewormer paste. Talk to your veterinarian to decide if ZIMECTERIN or               
ZIMECTERIN® Gold (ivermectin 1.55% / praziquantel 7.75%) paste is right for your horse.

 

Product NameZIMECTERINZIMECTERIN GOLD
 Active Ingredient(s)  ivermectin 1.87%

 ivermectin 1.55%

 praziquantel 7.75%

 Treats and controls* 

 small and large strongyles

 ascarids

 bots

 pinworms

 threadworms

 lungworms

 tapeworms

 small and large strongyles

 ascarids

 bots

 pinworms

 threadworms

 lungworms

 Safe For

Horses of all ages, including mares at any stage of pregnancy.

Stallions may be treated without adversely affecting their fertility.

 Horses two months of age or older.
 

 

 

*For a full list of parasite species and stages see the ZIMECTERIN and ZIMECTERIN GOLD Product Inserts.

 

 

 

ZIMECTERIN IMPORTANT SAFETY INFORMATION: Not for use in humans. Keep this and all drugs out of the reach of children. Do not use in other animal species as severe adverse reactions, including fatalities in dogs, may result. Ivermectin and excreted ivermectin residues may adversely affect aquatic organisms. Do not contaminate ground or surface water. Dispose of the syringe in an approved landfill or by incineration.

 

ZIMECTERIN GOLD IMPORTANT SAFETY INFORMATION: ZIMECTERIN GOLD has not been tested in foals younger than two months of age, mares at or near the time of breeding, pregnant or lactating mares, and breeding stallions. There have been rare reports of swelling and irritation of the mouth, lips, and tongue following administration of ZIMECTERIN GOLD. This product should not be used in other animal species as severe adverse reactions, including fatalities in dogs, may result. Not for use in humans.

Features & Benefits

Features

  • Contains ivermectin as the active ingredient
  • Potent antiparasitic agent that is neither a benzimidazole nor an organophosphate
  • Broad-spectrum control over parasites

 

Benefits

  • Effective against small strongyles; resistant to benzimidazole products
  • Kills important internal parasites, including bots and the arterial stages of S. vulgaris, with a single dose
  • Safe for horses of all ages, including mares at any stage of pregnancy. Stallions may be treated without adversely affecting their fertility.

 

Dosage & Administration

The syringe contains sufficient paste to treat one 1250 lb horse at the recommended dose rate of 91 mcg ivermectin per lb (200 mcg/kg) body weight. Each weight marking on the syringe plunger delivers enough paste to treat 250 lb body weight.

 

ZIMECTERIN is available at retailers and can be administered by a horse owner. However, it is best to consult with your veterinarian before treating your horse. Horse owners should work closely with their veterinarian to ensure continued effectiveness of their deworming programs and selectively treat only those horses that need it.

 

To administer ZIMECTERIN, deposit paste on the back of the horse’s tongue and immediately raise the horse's head for a few seconds after dosing. 

 

For more information on dosing and administration, please read the ZIMECTERIN product label.

 

Resources
Safety Information

ZIMECTERIN has been formulated specifically for use in horses only. Do not use in horses intended for human consumption. Not for use in humans. Keep this and all drugs out of reach of children. This product should not be used in other animal species as severe adverse reactions, including fatalities in dogs, may result.

 

Store at 68° F - 77° F (20-25° C). Excursions between 59° F - 86° F (15-30° C) are permitted.

 

Environmental Safety: Ivermectin and excreted ivermectin residues may adversely affect aquatic organisms. Do not contaminate ground or surface water. Dispose of the syringe in an approved landfill or by incineration.

 

ZIMECTERIN IMPORTANT SAFETY INFORMATION: Not for use in humans. Keep this and all drugs out of the reach of children. Do not use in other animal species as severe adverse reactions, including fatalities in dogs, may result. Ivermectin and excreted ivermectin residues may adversely affect aquatic organisms. Do not contaminate ground or surface water. Dispose of the syringe in an approved landfill or by incineration.

 

References

1. Kaplan RM, et al. Prevalence of anthelmintic -resistant cyathostomes on horse farms. J AM Vet Med Assoc. 2004;225(6):903-910

Trademarks

ZIMECTERIN® is a registered trademark of Boehringer Ingelheim Animal Health France, used under license. ©2025 Boehringer Ingelheim Animal Health USA Inc., Duluth, GA. All rights reserved. 

US-EQU-0109-2021-V2

IMPORTANT SAFETY INFORMATION

ZIMECTERIN IMPORTANT SAFETY INFORMATION: Not for use in humans. Keep this and all drugs out of the reach of children. Do not use in other animal species as severe adverse reactions, including fatalities in dogs, may result. Ivermectin and excreted ivermectin residues may adversely affect aquatic organisms. Do not contaminate ground or surface water. Dispose of the syringe in an approved landfill or by incineration.


ZIMECTERIN GOLD IMPORTANT SAFETY INFORMATION: ZIMECTERIN GOLD paste may be used in horses 2 months of age or older. ZIMECTERIN GOLD has not been tested in breeding, pregnant or lactating mares, and breeding stallions. There have been rare reports of swelling and irritation of the mouth, lips and tongue following administration of ZIMECTERIN GOLD. These reactions have been transitory in nature. This product should not be used in other animal species as severe adverse reactions, including fatalities in dogs, may result. Not for use in humans. Keep this and all drugs out of the reach of children. Refrain from smoking and eating when handling. Wash hands after use. Refer to the package insert for complete product information.