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At a Glance
Effective in fighting hyperthyroidism, or Graves disease
Reduces overall thyroid hormone levels
Comes in tablet form and taken orally
This product requires a prescription.


Methimazole, generic of Tapazole, is an anti-thyroid pill used to treat hyperthyroidism in cats to restore the hormone levels back to normal. Methimazole comes in tablet form to be taken orally and can be prescribed by your cat's veterinarian. [+]

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Rated 4.5 out of 5 by 23 reviewers.
Rated 5 out of 5 by Methimazole My cat has gone from a skeleton to a much calmer, happier, healthy cat again. He sleeps more like he used to, has filled out and has a healthier coat. The tablets crush easily so they disappear into his favorite wet food. Purchasing through Pet Rx is less than half the price of purchasing at my vet. 05/16/2016
Rated 5 out of 5 by works for hyperthyroidism my cat has gained weight since taking methimazole. i've had hyperthyroid cats in the past who had been on it and it definitely helps with that issue. 10/13/2015
Rated 5 out of 5 by Worth it! All I have to say is I'm pleased with its effectiveness AND ease of splitting. I've had different brands where they could barely be cut properly! (My cat was on 1/8 tab two times a day at one point, then moved to 1/4 tab twice a day) So, 1, I am very pleased with this medicine! 08/25/2015
Rated 5 out of 5 by Seems to work well. Works for my cat's condition. His hyperthyroidism is under control. I will definitely re-order from PetCareRx. 04/10/2014
Rated 5 out of 5 by prompt delivery, excellent value hassle free! they contact the vet directly and ship promptly. the product appears to be of high-quality and effective. very satisfied 02/06/2014
Rated 5 out of 5 by It works! I have a cat that was diagnosed with hyperthyroidism and the vet prescribed this medicine and it has definitely lowered her levels. 01/16/2014
Rated 4 out of 5 by Not same as received from vet. They were larger & chicken flavored Tiny tablets. Difficult to split. Not flavored. Prompt delivery. 09/16/2013
Rated 4 out of 5 by Not same as received from vet. They were larger & chicken flavored Tiny tablets. Difficult to split. Not flavored. Prompt delivery. 09/16/2013
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