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My dog ate my thyroid medication. Should I be worried about her?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Female | spayed | 44 lbs

My 45lb dog ate about 10 of my 75mcg levothyroxine. It's likely been 3 or 4 hours since she ate them and isnt showing any signs of being I'll. Should I be worried?

1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on January 16th, 2020

Since it has been several hours, inducing vomiting will not help. Dogs take higher doses of thyroid medications than humans do, so it is likely that Roxy will be fine. He may develop some stomach upset. Monitor for rapid heart rate, panting and restlessness or hyperactivity. These are symptoms that should be addressed by your veterinarian or at the nearest veterinary ER. You can also contact the Pet Poison Helpline ( https://www.petpoisonhelpline.com/ ). They are staffed by toxicologists who have more detailed information. There is a fee for the call. https://www.petpoisonhelpline.com/poison/thyroid-medications/

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