Each person taking thyroid replacement hormone has a personally tailored recommended daily dose of levothyroxine, or another medication. Your doctor will run tests and determine the best dosage for you. Some doctors base the dosage on weight, others base it on the type of thyroid disease you have and the results of your thyroid hormone levels as well as TSH. Very often, you will have to return to the doctor for more testing until your dosage is established.
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