How does doubling Methimazole lower my cat's high thyroid levels?

Question

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. Pet's info: Cat | American Shorthair | Female | spayed | 12 years and 2 months old | 5.4 lbs

Lauren Jones VMD · Accepted Answer

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.

How does doubling Methimazole lower my cat's high thyroid levels?

Most Helpful Answer

Related Questions

What to do if my cat has a small hole with pus coming from its ear?

My male dog's penis is stuck out and his scrotum has a painful rash.

Why does my puppy have bloody, mucousy stools despite diet changes?

My senior dog has recurring pancreatitis. How can I manage his diet?

My cat is chunky. What food and steps can I take to help him lose weight?

Why is my dog burping, sick, and not eating with an upset tummy?

Share