Thyroid drugs contain thyroid hormones and are used to supplement naturally occurring thyroid hormones in the body. They are used in the treatment of hypothyroidism (also called under-active thyroid disease), a common condition where the thyroid gland does not make enough thyroid hormone. Some thyroid drugs are also used in the treatment of goiter and for diagnosing certain thyroid conditions.
Thyroid hormones have profound effects on metabolism and influence heart and digestive function, muscle control, brain development and bone maintenance. They are also vital for proper growth and development.
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