Methimazole Dog Thyroid Medication & Hormone Care | Petco

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My cat's hyperthyroidism: Methimazole side effects. What to do?
Luv Bug is so very fortunate to have you as an owner. I am sure that you are one of the main reasons that she is going strong at 17 years of age. Kudos to you for your consideration and compassion for your pet. In terms of hyperthyroidism in cats, there are only three real treatments on the market today. These are methimazole treatment, thyroidectomy surgery, and radioactive iodine treatment. It is believed in the veterinary community that radioactive iodine is the gold standard treatment today. With the information you have provided, I can offer you a few possibilities for future treatment: 1. Perhaps you can get the math him is all in a tablet form to crush it into a fine powder and then mix it with any palatable substance that she likes and then squirt it in her mouth with a syringe. This, however, may cause some behavior problems because she may not like this either. 2. If you are willing to accept the costs and all of the different parts that go with the radioactive iodine treatment, I say go for it because the success rate for that specific treatment is excellent. Thank you very much for your question and I know you will make the right decision on her behalf. Have a great day.
Updated on September 24th, 2025
Vet Q & A
What are the best medication options for my cat's hyperthyroidism?
I assume that Chetoh was diagnosed with hyperthyroidism, as cats are rarely diagnosed with hypothyroidism. Typically, I treat with methimazole pills twice daily as a starting point. I find that the T4 hormone is better controlled with oral medications than the transdermal medications on the ear because absorption is variable with this method. Once hyperthyroidism is well controlled and it is apparent that the kidneys are stable, it can be worth considering I-131 (radioactive iodine) treatment, as it stops the need for medication at home in most cases. All of that said, there are still plenty of cases that I do prescribe the transdermal ear version of methimazole because some cats are extremely difficult to medicate at home. Just make sure that Chetoh follows his vet's recommendation for follow up lab testing so that his medication dosage stays appropriate.
Updated on September 24th, 2025
Vet Q & A
How can I get Levotiroxina for my pet's hypothyroidism treatment?
Hi and thanks for posting. Levotiroxina is a drug used to treat hypothyroidism. This is only available through prescription from Jacob's veterinarian. It is not an over the counter drug. I hope this helps!
Updated on September 24th, 2025
Vet Q & A
Is it safe to pre-prepare cat methimazole doses using butter?
I think I know what you're asking - you're asking if you can put together multiple doses of methimazole in separate aliquots of butter, correct? According to Plumb's veterinary handbook, methimazole is supposed to be stored in a closed container, away from light and at room temperature. So I think it would probably not be a good idea to prepare your butter + methimazole "doses" ahead of time, since the butter would need to stay in the refrigerator to stay solid. If it's hard to medicate your cat, you might investigate having your vet order a compounded flavored oral suspension of methimazole. This is usually quite easy to give, and compounding pharmacies can make meds with virtually any flavor added, so pets will take them.
Updated on September 24th, 2025
Vet Q & A
My dog's thyroid medication isn't working. What should I do?
We are not in a position to prescribe medication for your pet. The results you show here are not showing enough proof for the need for thyroid medications unless she is showing very clear symptoms in which case a free t4 ft4 test should be completed. I recommend repeating in 4-6weeks to track changes. I would be more concerned about her elevated bun and creatinine which may indicate kidney disease and should be investigated with urine tests by your vet to determine the concentrating ability of the kidneys
Updated on September 24th, 2025