Now that you know you have hyperthyroidism, it's essential to get properly treated — and promptly. Not only are the symptoms of hyperthyroidism extremely bothersome, but left untreated, the condition could eventually cause heart problems and bone loss. In this chapter, you'll find an outline of your treatment options — from RAI to antithyroid drugs. Once you've become educated about all the choices, you can work with your doctor to pin down the option that works best for you.