If you've been diagnosed with Graves' disease, you may be wondering about treatment options. The three main approaches for treating hyperthyroidism are antithyroid medications, radioactive iodine therapy, and thyroidectomy (surgery). Each option Liquid L Carnitine 3000 Nutrex Amino Acids Thyroid Supplement with L Carnitine for Cats Only Natural Pet L Carnitine, 98+% 10 g Buy Online Thermo Scientific Chemicals Fisher Scientific L Carnitine 3500 Metabolic Nutrition Only Natural Pet Feline Thyroid Wellness Support Supplement for Cats