Radioactive Iodine Treatment

Give your cat the best treatment option

Radioactive iodine is widely considered the gold standard treatment for cats of any age with hyperthyroidism due to its simplicity, effectiveness and safety. Without treatment, hyperthyroidism can lead to severe symptoms and even become fatal.

At Cat Specialist Services, we have a dedicated facility for treating hyperthyroidism in cats using radioactive iodine (I-131). This highly effective treatment involves administering a single capsule, which is usually well-tolerated by cats and has a high success rate. Most cats return to normal thyroid levels within a few weeks of treatment.

Veterinary services dedicated to feline health and care

How it works & ongoing care

The I-131 treatment process for hyperthyroid cats begins with a thorough evaluation, including a physical exam, blood work and any necessary diagnostic tests to assess their condition and rule out other health issues.

Once the treatment plan is established, your cat will be admitted for treatment and remain in isolation for 5-7 days while the radioactive iodine safely decays, in line with Queensland Health guidelines.

During this time, cats have their own unit in our world-class facility that is designed for their comfort and safety. Our team will closely monitor your cat’s condition and provide any necessary care.

After the isolation period, your cat can return home but must stay indoors for two more weeks. If needed, your cat can stay in our medical boarding suites, which offer natural sunlight, cozy sleeping areas and themed playrooms.

Follow-up care is crucial to ensure thyroid hormone levels remain stable and to monitor for any potential side effects. Our team will work with you to create a long-term care plan tailored to your cat’s needs.

Cat Radioactive Iodine Treatment Facility

Are you worried about your cat’s health?

If you would like to discuss radioactive iodine treatment for your cat, please reach out to our friendly team. Call us on 1300 228 377 or fill out the contact form below. In an emergency, please contact your local vet.

For vets – to refer a patient or book a telehealth consultation, please call us on 1300 228 377, book through the portal or fill in the form.

Patient Stories

Our commitment to feline health is best seen in the stories of the cats we’ve had the privilege of treating. These journeys highlight the dedication, expertise and compassion that drive us.

Each patient faced unique challenges, and it was our honour to offer high-quality care and help them regain strength and happiness. We value the deep bonds with cats and their owners, knowing the difference we make in their lives.

See All Stories

Tango Triumphs Over FIP

At 5 months old, Tango was diagnosed with Feline Infectious Peritonitis (FIP). Once considered a fatal disease, the introduction of new treatments has significantly boosted the survival rate.

Toffee Survives Tick Paralysis

Toffee faced a frightening battle with tick paralysis and aspiration pneumonia, she was rushed to AES when her owners noticed her vomiting, breathing difficulties and trouble walking.

JJ & the Lily – a close call

Mischievous JJ had a close call when he ingested part of a lily—an extremely toxic plant for cats. Thanks to the quick actions of his owner, Sophie, a VSS vet nurse, JJ made a full recovery.

Han’s Hip Fracture Surgery

Han presented after limping on his hind leg for two weeks following an accident at home. An X-ray revealed a fractured growth plate in his hip, requiring surgery to repair the injury.

Coco and Kidney Troubles

Coco stayed with us at CSS while recovering from a nephrectomy (the surgical kidney removal). After months of unsuccessful treatment for a ureteral obstruction, this became necessary.

Contacting Us

Pet Owners
If you would like to talk about treatment for your cat, call us on 1300 228 377 or fill in the form.
In an emergency, please contact your local vet.

Vets and Nurses
To refer a patient or book a telehealth consultation please call us on 1300 228 377, book through the portal or fill in the form. For advice calls, please see the guidelines here.

1300 228 377

1-15 Lexington Rd,
Underwood, QLD, AU, 4119

Monday-Friday: 8 am-6 pm
Saturday/Sunday - Closed