Radioactive Iodine Therapy in Bangalore for Thyroid Cancer and Hyperthyroidism

Kiran Nuclear Medicine and PET CT Centre offers radioactive iodine therapy in Bangalore for thyroid cancer and hyperthyroidism. Our nuclear medicine specialists plan each I-131 treatment around your diagnosis, scan results and overall health, with imaging and treatment managed by one team.

Radioactive iodine therapy

What is Radioactive Iodine Therapy?

Radioactive iodine therapy, also known as RAI therapy or I-131 therapy, is a nuclear medicine treatment that uses Iodine-131 to treat thyroid conditions. Because thyroid cells naturally absorb iodine, the treatment delivers radiation to thyroid tissue while limiting exposure to the rest of the body.

It is mainly used to treat:

Hyperthyroidism: an overactive thyroid gland producing excess thyroid hormone

Differentiated thyroid cancer: including papillary and follicular thyroid cancer

Conditions Treated with RAI Therapy

RAI therapy may be used for the following thyroid conditions:

How Does I-131 Therapy Work?

CT scan preparation guidelines Kiran PET CT

Radioactive Iodine Treatment for Hyperthyroidism

Radioactive iodine treatment for hyperthyroidism is a well-established option for Graves’ disease, toxic nodular goitre and toxic adenoma, particularly when anti-thyroid medicines have not worked well or are not suitable.

  • Treatment uses a lower dose of I-131
  • Thyroid hormone levels typically begin to improve over several weeks to a few months
  • Many patients need only one dose, though some may need a second treatment
  • Many patients eventually develop an underactive thyroid (hypothyroidism), which is managed with a daily thyroid hormone tablet

Radioiodine Therapy for Thyroid Cancer

Radioiodine therapy for thyroid cancer is used after surgery (total or near-total thyroidectomy) in suitable patients with differentiated thyroid cancer. Depending on your risk assessment, I-131 treatment for thyroid cancer may be used for radioiodine ablation, adjuvant treatment or treatment of recurrent or metastatic disease.

  • Treatment uses a higher dose of I-131 and requires a short stay in an isolation room
  • A post-therapy whole-body scan is usually performed a few days later to show where the radioactive iodine has been absorbed
  • Follow-up blood tests (thyroglobulin) and scans help monitor for recurrence

Radioactive Iodine Therapy Cost in Bangalore

Treatment

Indicative price

Typical use

Low Dose Radioiodine Therapy

₹20,000

Selected hyperthyroidism treatment

High Dose RAI, Level 1

₹65,000

[Confirm dose band and indication]

High Dose RAI, Level 2

₹75,000

[Confirm dose band and indication]

High Dose RAI, Level 3

₹90,000

[Confirm dose band and indication]

High Dose RAI, Level 4

₹1,00,000

[Confirm dose band and indication]

Prices include: [confirm: isolation stay, post-therapy whole-body scan, blood tests, specialist reporting]

The final cost depends on your condition, the dose prescribed and any additional tests or scans required. Our team confirms your treatment plan and cost after reviewing your reports.

How to Prepare for RAI Therapy

RAI therapy preparation is personalised by our team and commonly includes:

  • Low-iodine diet before RAI therapy: usually for one to two weeks before treatment, avoiding foods such as iodised salt, seafood, seaweed and some dairy products
  • Raising TSH (thyroid cancer patients): either by temporarily stopping thyroid hormone tablets or by recombinant TSH injections, as advised by your doctor
  • Medicines: anti-thyroid medicines and some other medicines may need to be stopped for a few days beforehand. Tell the team about all medicines and supplements you take.
  • Iodine contrast: inform the team if you have had a CT scan with iodine contrast in recent weeks, as this can reduce the effectiveness of treatment
  • Records: bring your surgery, pathology, blood test and scan reports

Pregnancy and contraception: I-131 therapy must not be given during pregnancy, as it can harm an unborn baby. Pregnancy is ruled out before treatment. People who could become pregnant should avoid pregnancy for at least six months after treatment. Male patients are usually advised to avoid fathering a child for at least four to six months after treatment. Use the contraception plan advised by your treating team.

Breastfeeding: if you are breastfeeding, tell the team before booking. Breastfeeding must be stopped before treatment, often several weeks in advance depending on the treatment plan, and may not be resumed after I-131 therapy. The team will advise you based on your situation.

What to Expect During Radioactive Iodine Therapy

On the day of treatment: you swallow the I-131 capsule or liquid, usually after a few hours of fasting.

Hyperthyroidism treatment: depending on the prescribed dose and radiation safety assessment, many patients go home the same day or after a short observation period. The team will confirm discharge arrangements before treatment.

Thyroid cancer treatment: you stay in a private isolation room, usually for two to three days, until radiation levels meet the criteria for safe discharge. Drinking plenty of fluids and passing urine frequently helps clear the radioactive iodine.

After discharge: follow the personalised radiation safety instructions provided by the team. These may include limiting prolonged close contact with pregnant women and young children, sleeping separately and following toilet hygiene measures for a short period.

Radioactive Iodine Therapy Side Effects and Safety

Radioactive iodine therapy has been used for decades and is a well-established treatment when appropriately selected and delivered. Possible side effects include:

  • Neck tenderness or swelling for a few days
  • Nausea, a dry mouth or temporary changes in taste
  • Swelling or discomfort of the salivary glands
  • Underactive thyroid after hyperthyroidism treatment, managed with daily thyroid hormone tablets
  • Worsening of thyroid eye disease in some Graves’ disease patients, particularly smokers, which your doctor may help prevent with medication
  • Rarely, longer-term salivary gland or dry eye problems, or other effects associated with high cumulative doses

Your specialist will explain the risks and benefits of RAI therapy that apply to your situation before treatment.

Follow-up Care After RAI Therapy

RAI therapy follow-up is tailored to your condition:

  • Hyperthyroidism: thyroid function blood tests every few weeks to months until hormone levels are stable
  • Thyroid cancer: a post-therapy whole-body scan, followed by thyroglobulin tests, neck ultrasound and further scans as advised
  • Thyroid hormone replacement is adjusted to keep your levels in the right range
  • Ongoing review by our nuclear medicine specialists, coordinated with your endocrinologist or surgeon

PET-CT for Thyroid Cancer: GE Discovery IQ Gen 2

Kiran PET CT uses the GE Discovery IQ Gen 2 PET-CT system for detailed molecular imaging. PET-CT may be used in selected patients with iodine-non-avid or progressive thyroid cancer, supporting more complete follow-up alongside I-131 therapy.

Theranostics for Thyroid Conditions

Radioactive iodine is one of the earliest examples of theranostics: the same element is used to image thyroid tissue and to treat it. At Kiran PET CT, diagnostic imaging and RAI therapy are planned together by one specialist team, so treatment decisions are guided by your own scan results.

Why Choose Kiran PET CT for RAI Therapy?

Discover the future of healthcare at Kiran Nuclear Medicine and PET CT Center. Our pioneering theranostics approach not only diagnoses but also tailors treatment plans specific to your needs, ensuring precise and effective care. Experience the power of personalized medicine with us.

Integrated theranostics

We provide an integrated pathway combining nuclear medicine imaging with targeted I-131 therapy, so one team manages your diagnosis, treatment and follow-up.

Precision planning

Every RAI therapy dose is planned around your condition, scan results and risk assessment.

Personalised medicine

Your nuclear medicine thyroid treatment in Bangalore is tailored to your medical history, preferences and treatment goals.

Private isolation rooms

Clean, comfortable and regularly sanitised rooms for a calm stay during high dose treatment.

Published pricing

Indicative costs are listed upfront, with a confirmed estimate after consultation.

Meet Our RAI Therapy Specialists

Dr Kiran Kumar JK

Dr Kiran Kumar JK

Founder and Director MBBS, MD(PGIMER)
Dr Manoj Devanathan

Dr Manoj Devanathan

Medical Director MBBS, MD(JIPMER)
Dr Abhiram GA

Dr Abhiram GA

MBBS, MD(PGIMER)

Dr Harshith Gowda

MBBS, MDRD

Frequently Asked Questions About Radioactive Iodine Therapy

What is radioactive iodine therapy (RAI)?

Radioactive iodine therapy is a nuclear medicine treatment that uses Iodine-131 to treat hyperthyroidism and differentiated thyroid cancer. Thyroid cells absorb the iodine, allowing radiation to be delivered to thyroid tissue.

How does radioactive iodine therapy work?

You swallow I-131 as a capsule or liquid. It is absorbed by thyroid cells, where its short-range beta radiation damages overactive or cancerous thyroid tissue while limiting exposure to the rest of the body.

What conditions can be treated with RAI therapy?

RAI therapy may be used for Graves’ disease, toxic nodular goitre, toxic adenoma and differentiated thyroid cancer, including radioiodine ablation after surgery and iodine-avid recurrent or metastatic disease.

Is radioactive iodine therapy safe?

It is a well-established treatment when appropriately selected and delivered. Side effects are usually mild, such as neck tenderness, dry mouth or taste changes. It must not be given during pregnancy or breastfeeding, and both women and men are advised to avoid conception for a period after treatment.

What should I expect during radioactive iodine therapy?

You swallow a capsule or liquid. Depending on the dose, hyperthyroidism patients often go home the same day or after a short observation period, while thyroid cancer patients usually stay in a private isolation room for two to three days. You will receive radiation safety instructions for the days after treatment.

How effective is radioactive iodine therapy?

For hyperthyroidism, many patients are successfully treated with a single dose, though some need a second. For differentiated thyroid cancer, radioiodine therapy may reduce the risk of recurrence in selected higher-risk patients and treats iodine-avid disease. Your doctor will discuss expected outcomes for your situation.

How much does radioactive iodine therapy cost in Bangalore?

Low dose radioiodine therapy is ₹20,000, and high dose therapy ranges from ₹65,000 to ₹1,00,000 depending on the dose level. The final cost is confirmed after reviewing your reports.

Do I need a low-iodine diet before RAI therapy?

Yes, usually for one to two weeks before treatment. This helps thyroid cells absorb more of the radioactive iodine. Our team will give you a diet guide.

Will I need thyroid tablets after RAI therapy?

Most thyroid cancer patients need thyroid hormone replacement after treatment. Many hyperthyroidism patients also develop hypothyroidism and need thyroid hormone tablets, taken once daily and monitored with regular blood tests.

Where can I get radioactive iodine therapy in Bangalore?

Kiran Nuclear Medicine and PET CT Centre offers radioactive iodine therapy in Bangalore at our [confirm: Banashankari and/or Indira Nagar] centre.

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