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Methimazole Cat Thyroid Medication
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- Health & Wellbeing
My 17 yr old cat has been diagnosed with hyperthyroidism. she was started on Methimazole chew treats and now refuses to eat them. I switched to the twist a dose ear Methimazole but if I give that to her daily like the vet suggested, all she does is
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 t
Updated on September 24th, 2025
- Health & Wellbeing
highly concerning side effects suddenly began 11/22/18, after 2 weeks of methimazole (pill) for hyperthyroidism - lethargy, vomiting, face itching, irritability, hiding all day, less frequent bowel movements, bouts of anxiety. He has NOT refused food
These signs could be consistent with methimazole related side effects. GI upset and facial itching are some of the most common acute side effects in the first few months of therapy. I would recommend stopping the medication until you can talk to your vet about your concerns. Some cats can not take this medication and thus require an alternate method of treatment. If still eating and drinking that is good. If any of the symptoms worsen an ER visit is advised. I hope this helps and thank you for using Boop by Petco!
Updated on September 24th, 2025
- Health & Wellbeing
My cat was just diagnosed with hypothyroidism. Our Vet recommended a medication applied inside the ear twice a day or pills once per day. I don't know the name of the med but was wondering how you might treat.
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
- Health & Wellbeing
I put my cat's methimazole in a pat of butter so he will take the meds. Can I put together more than one dose this way?
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
- Health & Wellbeing
my cats thyroid was very low. she took 5mg Methimazole twice a day for 4 months now thyroid to high 13. NOW VET WANTS ME TO GIVE HER 10MG TWICE day that doesn't make sense. How cam doubling the medicine lower her thyroid numbers.
Cats rarely develop HYPOthyroidism (low thyroid values), but instead typically develop HYPERthyroidism (elevated thyroid values). I assume that with a thyroid (T4) value of 13 (which is very high!), Mama is being treated for hyperthyroidism. Methimazole is a medication that works to suppress, or lower, thyroid hormone. Since she is not responding to her current dose of medication, your vet increased her methimazole dose to try to bring her T4 value back to a normal range.
Updated on September 24th, 2025
