Toltrazuril for Horses: Complete Dosage Guide & Treatment Overview

Toltrazuril is a potent antiprotozoal treatment commonly used to combat Equine Protozoal Myeloencephalitis (EPM) and coccidial infections in horses. At ToltrazurilShop.com, we provide high-quality Toltrazuril Liquid Solution specially formulated for effective, affordable parasite control in horses.

This comprehensive guide covers everything you need to know about Toltrazuril dosage for horses, how it works, when to use it, and what makes it a go-to solution for equine protozoal diseases.


🐴 What is Toltrazuril?

Toltrazuril is an antiparasitic medication designed to target protozoa, including Sarcocystis neurona (the primary parasite responsible for EPM). It disrupts protozoal development, helping your horse recover from or resist these aggressive infections.

Unlike many dewormers, Toltrazuril doesn’t simply paralyze or expel worms—it goes deeper, inhibiting intracellular replication of protozoa at various stages of development.


💊 Recommended Toltrazuril Dosage for Horses

When using Toltrazuril 5% solution, the standard equine dose for EPM treatment is:

👉 Dose: 10 mg/kg once daily for 28 days

Here’s a breakdown by weight:

Horse Weight (lbs)Weight (kg)Toltrazuril Dose (mL)
800 lbs~364 kg73 mL/day
1,000 lbs~455 kg91 mL/day
1,200 lbs~545 kg109 mL/day

Note: These doses are based on the 5% Toltrazuril concentration (50 mg/mL). Always measure carefully and consult your vet for individual cases.


🕒 How Long Should Toltrazuril Be Given?

For treatment of EPM and serious protozoal infections:

  • Treatment Duration: Typically 28 consecutive days

  • Preventive Use: Some veterinarians recommend periodic low-dose maintenance or rotation with other antiprotozoals like Diclazuril for long-term parasite management.


⚠️ Important Considerations Before Use

  • Shake Well: Toltrazuril is a suspension and should be shaken thoroughly before each dose.

  • Use Accurate Weight: Always base dosing on the horse’s actual weight—use a livestock scale or tape if needed.

  • Oral Administration: Toltrazuril is administered orally, either via syringe or added to feed.

  • 🚫 Not for Human Use: Veterinary use only. Store safely and keep out of reach of children.


🧠 Why Use Toltrazuril for EPM in Horses?

EPM (Equine Protozoal Myeloencephalitis) is a potentially debilitating neurological disease caused by Sarcocystis neurona. Horses may show signs such as:

  • Stumbling or hind-end weakness

  • Muscle wasting

  • Incoordination or head tilt

  • Behavior changes

Early intervention with Toltrazuril can significantly improve prognosis, especially when combined with immune support and proper nutrition.

🛒 Shop Now:
👉 Toltrazuril 5% Liquid Solution
👉 Max EPM Bundle for Horses
👉 EPM & Ulcer Eliminator Bundle


🌟 Bonus: Toltrazuril vs. Diclazuril – Which is Better?

Both Toltrazuril and Diclazuril are highly effective antiprotozoals. Toltrazuril is often favored for:

  • Broader protozoal coverage

  • Deeper cellular penetration

  • Longer treatment window with once-daily dosing

Diclazuril is sometimes used in maintenance regimens or rotation protocols to avoid resistance.

Looking for maximum protection? Consider rotating between the two or trying our Blackout EPM & Coccidia Solution for enhanced results.


✨ Final Thoughts

Toltrazuril is a game-changer in equine parasite treatment—especially for horses battling protozoal infections like EPM. With the right dosage and consistent treatment plan, your horse can make a full recovery and return to peak condition.

🛒 Browse our full collection of Equine Health Solutions for more products trusted by horse owners, trainers, and boarding facilities.


📌 Questions? Reach Out!

Have questions about Toltrazuril, dosage, or EPM bundles? Contact us here — we’re happy to help you choose the right product for your horse’s needs.

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