Published with the inputs from Dr Shelvin Kumar Vadi, Consultant, Nuclear Medicine, Baby Memorial Hospitals- Kozhikode
Radioiodine (RAI) therapy uses a radioactive form of iodine (I-131) to treat certain thyroid conditions. Since the thyroid gland naturally absorbs iodine, the radioactive iodine selectively destroys overactive thyroid cells or thyroid cancer cells, while sparing most other tissues. It is a safe, effective, and well-established treatment for hyperthyroidism and thyroid cancer.
Radioiodine therapy is a treatment that uses radioactive iodine (I-131) taken orally, usually as a capsule or liquid. It targets the thyroid gland, shrinking or destroying overactive thyroid tissue or remaining cancer cells after thyroid surgery.
Yes. RAI therapy has been used for decades with excellent safety. The radioactive iodine targets only thyroid tissue, minimizing effects on other organs. Side effects are usually mild but may include neck tenderness, dry mouth, or temporary taste changes.
Since patients give off small amounts of radiation for a short time:
Yes. RAI permanently treats hyperthyroidism in most cases. Many patients develop hypothyroidism afterward, which is easily managed with lifelong thyroid hormone replacement tablets.
It is highly effective in destroying remaining thyroid tissue or small cancer deposits after thyroidectomy, reducing the risk of recurrence. Patients need long-term follow-up with hormone tests and scans.
If you have been diagnosed with hyperthyroidism or thyroid cancer and require advanced treatment, the Endocrinology & Nuclear Medicine Team at Baby Memorial Hospital (BMH) offers safe, effective radioiodine therapy with expert care and comprehensive follow-up.
👉 Book an Appointment Online or visit BMH to consult our thyroid and nuclear medicine specialists.