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I-131 Packet

Radioiodine Therapy

The best and safest treatment for Hyperthyroidism

Radioiodine therapy is currently the best and safest treatment available for feline hyperthyroidism. It cures the disease painlessly and efficiently, and restores the health and quality of life you and your cat are longing for.

Survival Time Double with I-131 Therapy*

*JAVMA, Vol. 228, No 4, February 15, 2006

How Radioiodine Therapy Works

A radioactive isotope of iodine is injected and travels through the bloodstream. It is taken up selectively by the thyroid glands because they require iodine to manufacture thyroid hormone. Other tissues do not use iodine. The radioactive iodine releases tiny atomic particles called beta particles. Because the beta particles travel only short distances and are in much greater concentration in active thyroid tissue, radiation damage is restricted to the abnormal thyroid glands. If only one gland is hyperactive, the other gland shuts down hormone production so a normal gland does not absorb iodine and is not affected. For more information click here.