The thyroid gland is small, but it has a big job, releasing hormones that are essential to metabolism and other body functions. When the thyroid gland is underactive, you might feel tired, be more sensitive to cold, have dry skin and hair, or have difficulty concentrating. Medications for hypothyroidism interact with many drugs and foods and may sometimes require a dose adjustment, especially for major life changes such as menopause or a significant weight change. We are here to help you manage your medications and achieve your best health.