Where science and compassion cure
About Hypurrcat

The best medical facility for cats with hyperthyroidism.


Hypurrcat is a treatment facility dedicated solely to treating hyperthyroid cats with radioactive iodine (radioiodine, I-131). Founded by Dr. Mark E. Peterson, the preeminent authority in feline hyperthyroidism, Hypurrcat’s reputation for providing high quality, specialized, and compassionate care has earned it international acclaim.


A pioneer in the treatment of hyperthyroidism

Hyperthyroidism is a disorder caused by excess thyroid hormone in the bloodstream and body. Since this disorder increases the metabolic rate, it may cause a variety of symptoms in your afflicted cat. Dr. Peterson and his team first documented feline hyperthyroidism just 40 years ago, and it is now recognized as the most common hormonal disorder in domestic cats. In 1980, Dr. Peterson was the first to use radioiodine to successfully treat cats with the disorder.


As a pioneer in the research and treatment of this illness, Dr. Peterson’s body of published work has served as the educational foundation for veterinarians all over the world.


Therapeutic options

Cats with hyperthyroidism now have the same therapeutic options as people. This includes medication to suppress the thyroid hormone production, surgical removal of the thyroid tumor, and radioactive iodine (radioiodine I-131) therapy to destroy the thyroid tumor responsible for the condition. Radioiodine therapy is considered to be the treatment of choice by most authorities because it’s a simple, effective, and safe cure regardless of a cat’s age. If left untreated, however, hyperthyroidism can be fatal.


Our mission

As cat owners and cat lovers ourselves, all of us at Hypurrcat are dedicated to providing superior veterinary care, as well as daily environmental enrichment. We strive to be mindful of your cat’s experience and treat him or her with the same gentleness and tender touch that we would want for our own cats.


At Hypurrcat, our enduring mission is to be nothing less than the best radioiodine treatment center for hyperthyroid cats in the world. If your cat is hyperthyroid, don’t delay. Contact us as soon as possible so you too can see that we offer the best available treatment for cats with hyperthyroidism.


Compare Radioiodine and Methimazole treatments


What should you expect from a radioiodine treatment facility?


Why choose Hypurrcat as your radioiodine treatment facility?


21 West 100th St., New York, NY 10025
Phone: (212) 362-2650 • Fax: (212) 537-6340