Ivermectin Paste Dewormer

Ivermectin paste 1.87% is labeled for horses only and provides treatment and control of a broad range of susceptible parasites.

• Large strongyles and small strongyles

• Pinworms (Oxyuris equi)

• Ascarids (Parascaris equorum)

• Bots (Gasterophilus species)

• Lungworms (Dictyocaulus arnfieldi)

• Intestinal threadworms (Strongyloides westeri)

• Hairworms and large-mouthed stomach worms

• Certain summer sores and neck-threadworm-associated dermatitis

Parasite resistance to ivermectin and other dewormers can occur. Ivermectinkart itself cautions that inappropriate or repeated use can contribute to resistance.

Ivermectin belongs to the macrocyclic lactone class of antiparasitic medicines. It acts on chloride channels in susceptible parasites, interfering with normal nerve and muscle function. This produces paralysis and death of susceptible parasites.

The paste is active against multiple parasite stages listed on the veterinary label, including adult and larval stages of certain worms and the oral and gastric stages of bots.

Because resistance can develop within parasite populations, ivermectin should form part of a veterinarian-guided parasite-control program rather than being used repeatedly without assessing the horse's parasite risk and treatment history.

The FDA-listed 1.87% paste is administered orally and is dosed according to the horse's body weight.

Administration point	Label information
Route	Oral
Concentration	1.87% ivermectin
Target species	Horses only
Label dose	Approximately 91 mcg ivermectin/kg body weight
Syringe capacity	6.08 g paste
Maximum labeled coverage	Up to 1,250 lb body weight per syringe

The syringe is designed with weight markings so the amount can be adjusted to the horse's body weight. The manufacturer labeling advises obtaining veterinary assistance with diagnosis, treatment and parasite control.

Do not estimate a horse's weight inaccurately or administer more paste than the labeled amount. Follow the exact syringe instructions and veterinary advice.

Proper administration helps ensure that the horse receives the intended amount of medicine.

• Estimate or measure the horse's body weight as accurately as possible.

• Set the syringe's dosing mechanism to the appropriate body-weight marking.

• Place the syringe into the horse's mouth according to the product instructions.

• Deposit the paste toward the back of the tongue.

• Observe the horse briefly to ensure the paste has been swallowed rather than expelled.

• Clean and dispose of the syringe according to the product instructions.

Do not use the paste in humans or administer it to animal species other than those specified on the actual product label.

Ivermectin paste should be used at the labeled dose. Excessive doses can increase the risk of adverse effects, and individual animals may respond differently.

Parasite resistance: Repeated unnecessary use of ivermectin can select for resistant parasites. A veterinarian can help determine whether deworming is appropriate and whether fecal testing or another parasite-control approach is warranted.

Storage: Follow the storage conditions printed on the supplied syringe or carton. Keep the product in its original packaging and away from children, food and animals that should not receive it. Do not use a damaged syringe or product that is past its labeled expiration date.

Ivermectin Paste Dewormer 1.87% is a veterinary medicine for horses only. It must not be used by humans. FDA-listed products specifically state “For Oral Use in Horses Only.”

Consult a veterinarian for diagnosis, parasite identification and development of an appropriate deworming program. Do not assume that every horse needs ivermectin at the same interval, because parasite prevalence and resistance vary.

Use particular care with young horses and animals with significant health problems. Follow the actual product label concerning age, pregnancy, concurrent medicines and other restrictions. Do not administer the horse paste to dogs, cats, livestock or other species unless a veterinarian has specifically directed use of an appropriate ivermectin formulation; species-specific ivermectin products and toxicity risks differ.

Do not use veterinary ivermectin paste as a substitute for human ivermectin tablets or other human medicines. The FDA-approved veterinary label is specifically limited to horses.

Contact a veterinarian promptly if a horse develops an unexpected or severe reaction after treatment, or if signs of parasitic disease persist despite deworming.

This information is for general education and does not replace advice from a veterinarian or qualified animal-health professional.