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Toltrazuril

Why has my veterinarian prescribed this medication?

Your pet has been prescribed toltrazuril for the treatment of coccidia.

Adverse effects:

Adverse effect profile not well described, but toltrazuril appears relatively safe. Gastrointestinal effects are possible.

Storage and handling:

Store below 30°C. Protect from freezing.

Avoid direct contact with the medication; wear disposable gloves and wash hands after giving medication.

Please see the prescription label for dosing information and means of administration.

Always follow the label instructions. Never administer any medication unless prescribed by a veterinarian. Keep out of reach of children.

Plumb, D. C. (2015). Plumb’s Veterinary Drug Handbook, 8th edition. accessed via Veterinary Information Network; vin.com

Extra-label drug use

Extra-label drug use, also referred to as “off-label use” refers to the use of a drug approved by Health Canada in an animal in a manner not in accordance with the label or package insert with respect to species, indication, dose, duration, and route of administration.

A drug used in an extra-label manner does not have proven safety or efficacy characteristic based on its intended use.

The availability of approved veterinary drugs for the species being treated is always considered before prescribing medication in an extra-label manner.

With the limited approved veterinary drugs, extra-label drug use often involves the use medications made for other species (including humans) in our pets.

© Copyright 2025 LifeLearn Inc. Used and/or modified with permission under license. This content written by LifeLearn Animal Health (LifeLearn Inc.) is licensed to this practice for the personal use of our clients. Any copying, printing or further distribution is prohibited without the express written consent of LifeLearn. This content does not contain all available information for any referenced medications and has not been reviewed by the FDA Center for Veterinary Medicine, or Health Canada Veterinary Drugs Directorate. This content may help answer commonly asked questions, but is not a substitute for medical advice, or a proper consultation and/or clinical examination of your pet by a veterinarian. Please contact your veterinarian if you have any questions or concerns about your pet’s health. Created on Mar 20, 2019.