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

It is unlikely that this will cause any damage or side effects. T4 hormone will be temporarily suppressed, without any noticeable side effects. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

Most Levothyroxine tablets come in 0.1-0.9mg dosages, so I am not sure why your pet is on a full 5mg dosage. If this is not a typo, then this is a pretty hefty dosage for a cat to receive if she surely got 2.5mg's. However, severe life threatening symptoms from a single overdose are less likely than with chronic overdosing. Some signs you may see are: Vomiting, diarrhea, hyperactivity to lethargy, hypertension, tachycardia, tachypnea, dyspnea, and abnormal pupillary light reflexes. It can take 1-9 hrs for absorption to occur. Then the drug should be mostly out of her system 12-24 hrs. In most cases this is not an emergency situation, but you can see the symptoms I mentioned above, which should be treated with supportive care through your vet. This is a tough one indeed, but it is likely that Kilala will be ok, since I assume that the dosage you gave has to be incorrect based on the typical dosage that dogs receive (between 0.1-0.9mg). I hope that everything works out well for your pet Kilala. Best wishes and take care!

Overdosage of any thyroid drug may produce the signs and symptoms of thyrotoxicosis including, but not limited to: polydipsia, polyuria, polyphagia, reduced heat tolerance and hyperactivity or personality change. if she is experiencing any of those- take her to your vet, if not she should be fine.

A single dose of this size of Vetoryl will likely pose no serious risk of toxicity. Monitor for lethargy, vomiting, diarrhea or loss of appetite. See your veterinarian if any of these symptoms develop.

I’m sorry to hear that Chloe isn’t feeling herself. Is it possible that she received a Double dose of her thyroid medication this morning? Over medication with thyroid medication can cause these symptoms. Otherwise those can all be symptoms of discomfort. If her behavior continues then I would encourage you to have her evaluated by a veterinarian soon. Sometimes abdominal pain or back pain can cause those symptoms and can be hard to identify without an examination. Best of luck and I hope she improves soon. Thank you for using Pet Coach.

Panting is not a common sign in dogs taking medication for hypothyroidism. However, I did a little digging through some veterinary databases and found some reports of dogs panting excessively with different brands/dyes in the levothyroxine medication. Panting can be a sign that Bobbie's levothyroxine dose is too high, or could be a sign of other conditions, such as heart disease, pain or anxiety. Regardless, I recommend taking her to the vet for further evaluation. They may want to recheck her thyroid blood tests to check her current levels and will want to examine her to check for other problems. I hope this helps and that all goes well!

No. You should not be concerned about one extra dose generally speaking and should continue giving his medication as regularly scheduled. If you see any persistent behavior or clinical signs that are out of the normal for Jax, repost your concerns or report to an animal hospital.