The MSU Veterinary Medical Center now offers I-131 (radioactive iodine) therapy for the treatment of hyperthyroidism in cats. Hyperthyroidism is a common disease that may be managed medically, but requires daily administration of medication. I-131 offers a permanent fix that requires just a single injection of material. It is a very safe treatment and selectively targets only those cells in the thyroid that are causing the hyperthyroid state. It does require a few days in the hospital. Some tests, including bloodwork, are recommended prior to therapy. Those interested should make an appointment with the internal medicine service and discuss details of tests required before therapy.

I-131 can also be used as a treatment for certain thyroid tumors in cats and dogs. Michigan State is one of the very few facilities licensed to use the higher doses necessary in dogs with thyroid cancer. Those interested in I-131 therapy for the treatment of thyroid cancer should make an appointment through the oncology service.