Concerns have been raised about levothyroxine, a commonly prescribed thyroid medication for older adults in the U.S., as new research links its use to bone loss. Levothyroxine is used to treat underactive thyroid, which can cause symptoms such as fatigue, weight gain, and depression. Many older adults continue taking levothyroxine for years without reevaluating if it is still needed. Improper dosage of levothyroxine can affect various bodily functions. A recent study found that even in euthyroid adults with normal thyroid function, levothyroxine use is associated with greater bone loss over time. Researchers recommend reevaluating the necessity of levothyroxine use in older adults.
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