Should my hyperthyroid cat get surgery or stay on medication?

Question

My cat was diagnosed with hyperthyrodism 4 weeks ago. She was put on 1.0ml of methimasole twice a day. After 3 weeks i took her for blood test. Her thyroid level dropped from 9.0 to 4.1 and blood cell count along with kidney function were within the healthy range. My vet wants to see my cat's thyroid in the 1-2.0 range and increased her dose to 1.25ml twice a day. I worry about future side effects of methimasole. Will surgery be the best option, given she is healthy otherwise and we have 2 cats? Pet's info: Cat | Domestic Shorthair | Female | spayed | 8 years old | 7.1 lbs

Dr. Massimo Orioles, DVM, Cert AVP, MRCVS · Accepted Answer

Surgery will be a definitive option and treatment won't be needed anymore in the long term. Unfortunately the down side of it is the cost and invasiveness of procedure. Medical treatment on other hand requires constant monitoring and continue treatment but it is a good option as well. The decision is very subjective, but usually where cat and client are right candidates, I tend to suggest surgery. 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.

Should my hyperthyroid cat get surgery or stay on medication?

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