Your Thyroid: What You Need to Know

I came across this information sheet about "Your Thyroid," which came from the Hormone Health Network.  Although very s…

How to Manage Hyperthyroid Cats that Become Resistant to Methimazole

I have a 19-year old female DSH cat who was diagnosed with hyperthyroidism 5 years ago. I chose not to do the radioactive treatm…

Transient Hypothyroidism in Cats Following Radioiodine

Transient hypothyroidism, with the development of subnormal thyroid hormone levels, is common after radioiodine therapy. However,…

Success Rates for Radioiodine Treatment in Hyperthyroid Cats

The ideal goal of radioiodine (131-I) therapy in cats with hyperthyroidism is to restore euthyroidism with a single dose of radio…

High-dose Radioiodine Treatment for Thyroid Carcinoma

Figure 1: Hyperthyroid cat with a huge thyroid tumor after 3 years of methimazole treatment.  Notice the swollen neck, which tu…

Estimating the Radioiodine Dose to Administer to Cats with Hyperthyroidism

Ideally, treatment of a hyperthyroid cat with a single dose of radioiodine should restore euthyroidism without inducing hypothyro…

Radioiodine Treatment in Cats: Patient Selection and Preparation

Routine diagnostic testing should always be performed by the primary-care veterinarian before referral for radioiodine treatment …

How Radioiodine Works to Cure Cats with Hyperthyroidism

Iodine Physiology and the thyroid Thyroid hormones are the only iodinated organic compounds in the body. Ingested stable iodine (…