Feline Hyperthyroid Center in Danbury/Brookfield, CT

Prior to visiting this location, please call one of our Thyro-Cat specialists to schedule your visit: 866-467-8228.

Brookfield/Danbury Thyro-Cat at:
Complete Cat Veterinary Clinic

32 Old New Milford Road
Brookfield, CT 06804
Phone: 866-467-8228 (TCAT)
The Complete Cat Clinic

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Radioactive Iodine I-131 Therapy for Cats with Feline Hyperthyroidism

Feline hyperthyroidism is a very common endocrine disease that affects older cats (and middle-aged cats), and is easily diagnosed and treated with radioactive iodine therapy at all Thyro-Cat locations. This condition occurs when a tumor in one or both thyroid gland lobes (70% of cats diagnosed have tumors in both lobes), produces excess feline thyroid hormone, and all organs are affected in a negative manner. If left untreated, an overactive feline hyperthyroid condition will likely become fatal. Luckily, feline hyperthyroidism is highly treatable, if diagnosed early, as 98% of cat thyroid tumors are benign (adenoma) and 2% are cancerous (carcinoma).

Our Danbury thyroid treatemnt center offers affordable, effective diagnosis and treatment for cats with hyperthyroidism, and also has other locations in CT and NY for convenience. Thyro-Cat administers radioactive iodine I-131 therapy (which is also used for overactive thyroids in humans) for feline hyperthyroidism in diagnosed cats as easily and quickly as a vaccine, as it is injected just under the skin; and is entirely safe and effective for your cat.

How Feline Thyroid Treatment Works


The Thyro-Cat Feline Hyperthyroidism Treatment Center at Complete Cat Veterinary Clinic in Danbury makes the process of diagnosis and treatment for your cat as comfortable and soothing as possible by offering a large, comfortable and climate-controlled facility for your cat to relax in during his/her 3-5 day stay at our feline hyperthyroidism treatment center. While the injection takes only a second, by law it is required that cats stay 3-5 days in the facility to ensure the level of radiation has been safely reduced before exiting our supervision and monitoring.

Cat Hyperthyroidism Treatment Process

  1. Cat is admitted to Thyro-Cat for feline hyperthyroidism therapy.
  2. Chest/abdominal ultrasounds are administered prior to injection of radioactive iodine (I-131) therapy.
  3. With normal results, the radioactive iodine (I-131) therapy injection is administered.
  4. Cat is closely monitored for both radioactive levels, as well as overall health status for 3-5 days after injection.
  5. Thyro-Cat of Brookfield/Danbury creates and sends a custom feline hyperthyroidism report of your cat to your cat's veterinarian. This feline hyperthyroid report includes hyperthyroidism status, the treatment process, as well as recommendations for the veterinarian on applicable feline thyroid monitoring and treatment.

Expert, Compassionate Feline Specialists

The veterinary radiologists, veterinarians, and specialists that staff Thyro-Cat Brookfield/Danbury, CT Feline Hyperthyroidism Center are the best at what they do. They are board-certified, licensed, and compassionate cat specialists, committed to providing effective, affordable, and comfortable hyperthyroid treatment for felines in CT. A shining example of extraordinary Thyro-Cat feline hyperthyroidism specialist care is Dr. Victor Rendano, who, aside from having the certifications of VMD, MS, DACVR, and DACVR-RO; has an impressive list of accreditations to include, but not limited to: diplomate induction into the American College of Veterinary Radiology, diplomate/board certification in radiation oncology, professor of radiology at Cornell University College of Veterinary Medicine, and veterinary radiology specialist, and chief specialist at Thyro-Cat hyperthyroidism treatment centers.

Dr. Victor Rendano, VMD, MS, DACVR, DACVR-RO, specialist in veterinary radiology and professor of radiology at Cornell University College of Veterinary Medicine, is chief specialist at Thyro-Cat Feline Hyperthyroidism Treatment Centers. Dr. Victor Rendano was inducted as a diplomate into the American College of Veterinary Radiology in 1975, and was awarded diplomate status and board certification in radiation oncology in 2001.

To make an appointment at Thyro-Cat Feline Hyperthyroidism Treatment Center at our Brookfield, CT feline hyperthyroid treatment center for radioactive iodine I-131 therapy, please call Thyro-Cat directly at 866-467-8228 (TCAT). If you have questions about common feline hyperthyroidism symptoms, the treatment of your cat using radioactive iodine I-131, have general questions about feline hyperthyroidism or would like pricing information for feline hyperthyroidism treatment, please call Thyro-Cat at 866-467-8228 (TCAT) or visit our Frequently Asked Questions about Feline Hyperthyroidism and Radioiodine I-131 Therapy page.

For veterinarians referring a feline patient to Thyro-Cat Feline Hyperthyroidism Treatment Center in Danbury/Brookfield, CT, please visit our Veterinary Referrals section.

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Thyro-Cat offers feline hyperthyroidism treatment for cats at centers in Danbury, CT, Stamford, CT, Long Island, NY, Syracuse, NY, and Queensbury, NY. Our state-of-the-art centers use radioiodine therapy which is proven to be a fast, safe and effective method of treatment for feline hyperthyroidism. With one quick shot and one short stay, we offer your beloved cat a permanent cure.
32 Old New Milford Road