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Should You Consider a Clinical Trial?

If you’re interested in a clinical trial related to cancer, consider the following information.

What is radioactive iodine treatment?

Radioactive Iodine Treatment

Radioactive iodine treatment uses radioactive iodine medication to treat thyroid cancer or an overactive thyroid (hyperthyroidism). The thyroid gland efficiently absorbs and concentrates iodine. Once in the thyroid, radioactive iodine destroys thyroid cancer cells, as well as the thyroid. Radioactive iodine treatment, also called radioiodine therapy or I-131 treatment, is available in a capsule or liquid form.

Radioactive iodine treatment is only one method of treating thyroid diseases, disorders and conditions. Discuss all your treatment options with your doctor to understand which options are right for you.

Other procedures that may be performed

Your doctor may recommend one or more additional procedures to treat thyroid cancer or hyperthyroidism including: 

  • Chemotherapy uses medications to slow or stop the growth of thyroid cancer cells.

  • External radiation therapy uses X-ray beams to kill thyroid cancer cells.

  • Surgery removes an overactive thyroid gland. You may also need surgery to remove all or part of a cancerous thyroid and possibly lymph nodes in the neck if the thyroid cancer has spread.

  • Thyroid hormone therapy uses drugs to prevent your body from making thyroid hormones or blocks their action to stop cancer cells from growing.

Medical Reviewers: William C. Lloyd III, MD, FACS Last Review Date: Sep 4, 2016

© 2016 Healthgrades Operating Company, Inc. All rights reserved. May not be reproduced or reprinted without permission from Healthgrades Operating Company, Inc. Use of this information is governed by the Healthgrades User Agreement.

View Sources

Medical References

  1. General Nuclear Medicine. American College of Radiology.
  2. Radioactive iodine (radioiodine) therapy for thyroid cancer. American Cancer Society.
  3. Radioactive Iodine Treatment. Diabetes & Hormone Center of the Pacific.
  4. Radioiodine (I -131) Therapy for Hyperthyroidism. American College of Radiology.
  5. Thyroid Cancer Treatment. National Cancer Institute.

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