Ivermectin paste for horses tractor supply

Introduction

Horse owners and veterinarians often look for reliable and effective treatments for parasitic infections in equines. Ivermectin paste, commonly available at stores such as Tractor Supply, is a well-known treatment used to combat a variety of internal and external parasites in horses. This article aims to provide an in-depth understanding of ivermectin paste, its uses, how it functions, safety precautions, and potential side effects. Whether you\’re a seasoned equine caretaker or new to horse management, this guide offers valuable information to ensure the health and well-being of your horses.

Medical Disclaimer

This article is for informational purposes only and should not be considered medical advice. Always consult with a licensed veterinarian or healthcare professional before making any decisions regarding the treatment of your animals. Professional guidance is essential for the safe and effective use of any medication.

Quick Facts Scannable

What it is used for: Treatment of internal and external parasitic infections in horses.
How it works: Paralyses and kills parasites by affecting their nervous system.
Common forms: Oral paste formulation.
Onset/Duration: Begins working within hours; duration varies by parasite type.
Key cautions: Do not use in animals intended for human consumption; use cautiously in foals.
Common side effects: Transient signs of colic or diarrhea.
Important interaction highlights: Limited, but caution is advised with other medications.
Special population cautions: Use caution in pregnant mares and horses with known sensitivity.
When to seek urgent help: Signs of severe allergic reactions or neurological symptoms.

What It Is and How It Works

Ivermectin paste is an antiparasitic medication used for the treatment and control of various parasites in horses. It belongs to the class of drugs known as macrocyclic lactones. Ivermectin works by binding selectively to glutamate-gated chloride ion channels which are key to the parasite’s nerve and muscle cells. This binding leads to an increase in chloride ion permeability, resulting in paralysis and death of the parasites. The selectivity towards parasites over host species adds to its safety profile when used according to guidelines.

While ivermectin effectively targets a wide range of parasites, including gastrointestinal worms, lungworms, and bots, it\’s crucial to use it under veterinary guidance to avoid resistance issues and ensure dosing is appropriate for the horse\’s condition and weight.

Indications / Uses

Ivermectin paste is primarily used for the treatment of parasitic infections in horses. The drug is effective against various internal parasites, such as large and small strongyles, pinworms, ascarids, and hairworms. Additionally, it treats external parasites, including bots and certain types of lice and mites, making it a comprehensive broad-spectrum antiparasitic treatment.

While off-label uses of ivermectin exist, they should only be made under the guidance of a veterinarian to ensure the safety and health of the horse. Common examples are infrequent and should be tailored to specific health needs identified by a professional.

Dosage Forms and Typical Dosing Considerations

Ivermectin paste for horses generally comes in a pre-measured oral syringe, designed for easy administration. Each syringe is calibrated based on the horse\’s weight so that the correct dose can be delivered efficiently. The paste is typically administered directly into the horse\’s mouth.

Dosing considerations include:

Weight: The accuracy of dosing is dependent on knowing the horse\’s weight. Underestimating can lead to ineffective treatment, while overestimating increases risk for side effects.
Pregnancy and Lactation: Caution is advised during pregnancy; consult a veterinarian.
Age: Young foals and very senior horses require special dosing and monitoring.
Comorbidities: Horses with liver or kidney issues may require dose adjustments.

Always follow the prescribing veterinarian\’s instructions and the product label for specific dosing information.

How to Take It Correctly Step-by-Step

Administering ivermectin paste requires careful attention to the dosage and administration process to ensure effectiveness:

Preparation: Ensure your horse is calm and restrained safely. Have the dosing syringe ready.
Determine Dosage: Estimate the horse\’s weight correctly and set the syringe dose accordingly. Align the plunger with the relevant weight marking.
Administer: Insert the syringe in the horse’s mouth, placing it in the gap between the front and back teeth, then depress the plunger to administer the paste.
Post-Administration: Ensure the horse has swallowed the paste by observing them for a short period to prevent immediate spitting out of the medication.
Missed Dose: If a dose is missed, consult your veterinarian for advice on when to administer the next dose, rather than doubling up or improvising timing.

Store ivermectin paste in a stable environment at room temperature, away from direct sunlight and moisture.

Side Effects Common to Serious

Common Side Effects

Gastrointestinal upset, such as mild colic or diarrhea.
Temporary drooling due to irritation.

Less Common Side Effects

Minor skin reactions, potentially including hives or rashes.

Serious or Rare Side Effects

Severe allergic reactions requiring immediate veterinary care.
Neurological symptoms, such as ataxia or tremors.
Severe diarrhea or signs of dehydration requiring urgent evaluation.

Immediate veterinary attention is critical if serious side effects occur. Always observe the horse for any unusual symptoms following administration.

Contraindications & Precautions

While ivermectin paste is generally safe, certain populations may require extra caution:

No Use in Human-Intended Horses: Not for horses intended for human consumption.
Pregnancy: Use in pregnant mares should be guided by a veterinarian.
Pediatric Caution: Use with caution in very young foals.
Preexisting Conditions: Horses with liver or kidney issues may need adjusted doses.
Known Allergies: Horses with previous reactions to ivermectin formulations.

Drug, Food, and Supplement Interactions

Although ivermectin generally has limited interactions, it is important to inform the treating veterinarian about any other treatments, supplements, or medications being administered to the horse. This vigilance helps to avoid potential interactions and ensure comprehensive care.

Always avoid alcohol when administering medications to any animal, as a rule for maintaining best practices in animal care.

Price & Availability

Ivermectin paste is often available at retail agricultural and equestrian supply stores like Tractor Supply. Prices can vary based on brand, formulation, and regional demand. When insurance plays a role, it can affect overall treatment costs. Below is a table summarizing factors influencing availability:

Factors	Explanation
Brand vs Generic	Generic options may offer cost savings over branded products.
Dosage Quantity	Buying in bulk for a large stable may reduce per-unit costs.
Regional Supply	Local supply issues can influence availability and price.
Store Policies	Retailer pricing policies may affect cost.
Discount Programs	Special discounts or membership programs at some stores can reduce costs.

Comparisons When Relevant

When considering antiparasitic options, other treatments might be discussed with a veterinarian. Here is a comparison of some alternatives:

Option	Typical Use	Key Pros/Cons	Notable Cautions
Moxidectin	Similar parasitic range	Longer duration of action; can be toxic if overdosed	Toxicity in young foals
Pyrantel	Treat pinworms, roundworms	Usually safe; may need repeated doses	Less effective against encysted larvae
Fenbendazole	Effective against many worms	Good safety; limited external parasite action	Resistance issues in some areas

Practical Safety Checklist

Check for any known allergies or previous adverse reactions.
Ensure accurate weight measurement to calculate dosage.
Avoid use if the horse is intended for human consumption.
Confirm with veterinarian if mare is pregnant or foal is very young.
Identify current medications and supplements to check for interactions.
Follow prescribed dose and schedule strictly.
Be aware of emergency red-flag symptoms and whom to contact.

FAQs

Is ivermectin safe for use in pregnant mares?

Ivermectin can be used in pregnant mares under veterinary guidance. Caution is always advised, and a veterinarian should assess risks versus benefits.

How often should ivermectin paste be given to horses?

The frequency of administration depends on the horse\’s specific health needs, weight, and exposure level to parasites. Consult a veterinarian for a personalized deworming schedule.

Can ivermectin be used in foals?

Yes, ivermectin can be used in foals, but careful consideration of the dosage and veterinary guidance is essential due to sensitivities in young horses.

What should I do if my horse spits out the paste?

If your horse spits out the paste, do not administer another dose immediately. Consult your veterinarian for advice on when to administer another dose.

Are there any resistance concerns with ivermectin?

Resistance can develop if ivermectin is used inappropriately. Maintaining an effective deworming program with your veterinarian\’s guidance reduces this risk.

What happens if I give too much ivermectin to my horse?

Overdosing can lead to serious side effects, including neurological symptoms. Contact your veterinarian immediately if an overdose is suspected.

How should I store ivermectin paste?

Ivermectin paste should be stored at room temperature, away from direct sunlight and moisture.

Can humans use ivermectin paste for horses?

No, ivermectin paste designed for horses should not be used by humans. Consult a healthcare provider for appropriate human medications.

What if my horse shows signs of colic after administration?

If your horse shows signs of colic, discontinue use and contact your veterinarian. Monitor the horse\’s condition closely.

Is it okay to use ivermectin with other dewormers?

Combining dewormers can sometimes be part of a comprehensive parasite management strategy. However, such decisions should always be made in consultation with a veterinarian.

Can ivermectin treat all kinds of parasites?

While ivermectin is broad-spectrum, it may not be effective against all parasites, such as those resistant strains. Consult with a veterinarian for a complete parasitic management plan.

Are weight-based adjustments necessary for dosing?

Yes, ivermectin dosing is weight-dependent, so accurate weight measurement is essential to avoid under or overdosing.

Conclusion

Ivermectin paste remains a staple in equine health for controlling a range of parasitic infections. Its efficacy, safety profile, and convenience make it an important tool in horse care. However, responsible use, with guidance from veterinary professionals, is key to maintaining effectiveness and minimizing the risk of resistance or adverse effects. Horse owners should always prioritize professional consultation for dosing and treatment decisions to ensure the health and welfare of their animals.

References

Merck Veterinary Manual. \”Ivermectin for Veterinary Use.\” Merck Manual website.
FDA. \”FDA Approves First Generic Ivermectin Paste for Horses.\” U.S. Food and Drug Administration.
American Association of Equine Practitioners (AAEP) Guidelines for Parasite Control.
Equine Internal Medicine by Stephen M. Reed, Warwick M. Bayly, and Debra C. Sellon.
Veterinary Pharmacology and Therapeutics by Jim E. Riviere and Mark G. Papich.
Plumb\’s Veterinary Drug Handbook for dosage and administration guidance.