Levothyroxine
Why has my veterinarian prescribed this medication?
Your pet has been prescribed Thryo-tabs (levothyroxine sodium) for correction of conditions associated with low circulating thyroid hormone (hypothyroidism).
Adverse effects:
There are no specific adverse reactions associated with levothyroxine sodium administration at the recommended dosages.
Over-dosage will result in the signs and symptoms of thyrotoxicosis, including, but not limited to: polydipsia, polyuria, polyphagia, reduced heat tolerance, and hyperactivity or personality change.
Storage and handling:
Store at controlled room temperature: 15° - 30°C and protect from light.
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.
Veterinary Healthcare Solutions, Inc. Thryo-Tab product monograph. Accessed via CDMV Compendium of Veterinary Products – Canada; cdmv.cvpservice.com/
© 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. Last updated on Mar 20, 2019.
