Dr. Ladenson shares how long a woman should wait to determine if the medication for her underactive thyroid gland is working.
When a woman has an underactive thyroid gland and she has begun on thyroxine medication, which is almost always the most appropriate medication to treat an underactive thyroid gland, it takes approximately one month for the thyroid hormone level to build up to a steady state in her blood.
So typically, physicians and patients are well advised to wait a month to see how their feelings change and how their blood tests respond to the initiation of thyroid hormone therapy or to a change in their thyroid medication dose.
About Dr. Ladenson:
Dr. Ladenson is Director of the Division of Endocrinology and Metabolism Johns Hopkins in Baltimore, where he is the John Eager Howard Professor of Endocrinology and Professor of Medicine, Pathology, Oncology, and International Health. Dr. Ladenson was raised in Missouri and educated at Dartmouth College, Oxford University, and Harvard Medical School before training in Internal Medicine and in endocrinology and metabolism at Massachusetts General Hospital in Boston. He is also the past-president for the American Thyroid Association. Dr. Ladenson’s research interests include the effects of thyroid hormone on the cardiovascular system, applications of thyroid hormone analogs, novel approaches to thyroid cancer diagnosis and management, and health economic analyses related to thyroid patient care.
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