Clients elect to treat their hyperthyroid cats with radioiodine (I-131) for a number of reasons. Some have work or personal schedules that do not accommodate the administration of medications multiple times a day for the rest of their cat's life. Others have a more flexible schedule, but have a hard time physically administering medications to their cat. And some simply appreciate the value for their cat that comes from curing hyperthyroidism rather than chronically treating the symptoms. In our experience, clients choose radioiodine therapy over the alternative therapies because they want the best for their cat. To celebrate a full year of persistent euthyroidism (normal thyroid levels) AVMI automatically enrolls cats in the AVMI Anniversary Club when we receive confirmation of a normal thyroid level anytime more than 1 year following their radioiodine therapy date.