Radioiodine: An isotope of the chemical element iodine that is radioactive. Radioiodine is used in diagnostic tests as well as in radiotherapy of an hyperactive thyroid gland (hyperthyroidism), most often due to Graves' disease.
For hyperthyroidism, radioiodine is administered in capsule form on a one- time basis. It directly radiates thyroid tissues, thereby destroying them. It takes 8-12 weeks for the thyroid to become euthyroid (normal) after treatment.
The majority of patients undergoing this treatment eventually become hypothyroid, which is easily treated using thyroid hormones (levothyroxine).
Radioiodine should not be used during pregnancy or breast feeding.
Radioiodine is the preferred initial therapy for the hyperthyroidism of Graves disease in North America while antithyroid drugs are used as the first line of treatment in most of the rest of the world.
Current and accurate information for patients about Radioiodine I-131 therapy. Learn what you might experience, how to prepare for the exam, benefits, risks and more.
Your thyroid gland absorbs nearly all of the iodine in your blood.
Radioiodine Ablation and Treatment for Papillary and Follicular Thyroid Cancer (By Douglas Van Nostrand, M.D. Reprinted, with permission, from ...
radioiodine /raÂ·dioÂ·ioÂ·dine/ (-iÂ´o-dÄ«n) any radioactive isotope of iodine, particularly 123I, 125I, and 131I; used in diagnosis and treatment of thyroid disease ...
What should you expect from the facility providing radioiodine therapy for your hyperthyroid cat?