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

Kitty, a lymphoma survivor

We first met Kitty after she was referred to CSS for the evaluation of a large intestinal mass

Poppi finds her feet again

Following surgery to remove a hairball obstruction, Poppi was referred to us at CSS as she had not bounced back as expected

Rusty and his ongoing chronic rhinitis journey

Lifelong nasal issues, including persistent discharge and breathing noise, have been a bit of a thorn in Rusty’s side.

Lando’s long game with cryptococcus

Lando was referred to CSS because he had a swelling under his jaw that wouldn’t go away.

Popeye coughs up the culprit

Ares is a handsome young Maine Coon who was referred to CSS after presenting at AES with sudden lameness in his back leg.

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