There are three different treatmentsfor hyperthyroidism and the length of each treatment depends on factors like age, the main cause of the hyperthyroidism, and the amount of thyroid the body is producing, notes Mayo Clinic. Radioactive iodine and anti-thyroid medication are the most widely used treatments.
Anti-thyroid medication is mostly used to treat mild hyperthyroidism. The symptoms typically begin to subside in 6 to 12 weeks; however, the treatment can be prolonged for a year or even longer. Radioactive iodine is orally administered then absorbed into the thyroid gland. Symptoms typically subside in 3 to 6 months. Beta blockers like atenolol and propranolol are prescribed by doctors to relieve some of the symptoms of hyperthyroidism while it is being diagnosed. In some rare occasions, surgery may be performed.