Has anyone ever treated their hyperthyroid petor know anyone who has with radioactive iodine treatment? They say the anti-thyroid drugs are for life and eventually it is likely to become cancerous anyway if it isn't now (our ~10 year old cat was just diagnosed yesterday, along with a slightly inflamed pancreas)..so I'm wonderingif it's just wiser to do the iodine treatment. They say they can also take the thyroid out, but it's a REALLY risky surgery....any experience with this is highly appreciated. Thank you.