New Hampshire i-131

Radioactive Iodine Injection (i-131) is the only cure for hyperthyroidism in cats, with an over 98% cure rate.

As cats age and move into their senior years, they can develop hyperthyroidism — a thyroid disease where too much hormone is produced. When this hormone is elevated, it can cause a range of symptoms from heart and kidney disease to weight loss and their metabolism running too high. Other signs can include hyperactivity or lethargy, appetite changes, increased drinking, behavioral changes and diarrhea.

If left untreated, hyperthyroidism can be fatal, but fortunately, it doesn’t have to be. Hyperthyroidism can easily be treated with a Radioactive Iodine Injection (I-131) resulting in a cure rate of over 98%. i-131 is considered the gold standard for treating hyperthyroidism.

Founded in 2022, New Hampshire i-131 offers i-131 treatment at Hopkinton Animal Hospital. Dr. Michael Dutton is a highly experienced board-certified provider with over 15 years of administering I-131 as part of our comprehensive and complete care offered to feline family members.

Virtually Visit Your Pet

State and Federal law requires that your cat stay with us in a specially designed i-131 treatment suite for approximately five days, until their radioactivity levels reduce to a safe level for the general population. We know that separation from a loved pet can be difficult, so Hopkinton Animal Hospital has created a way for you to virtually “visit” your pet while here in isolation.

Click here to access your cat’s live stream webcam for a “virtual visit.”