Levothyroxine is primarily used to treat which condition?

Levothyroxine is primarily used to treat hypothyroidism, a condition in which the thyroid gland does not produce enough thyroid hormones. This hormone deficiency leads to various metabolic issues, and levothyroxine serves as a synthetic replacement for the missing hormone, helping to restore normal thyroid function and metabolic balance in the body. By providing the body with the necessary levels of thyroid hormone, levothyroxine alleviates the symptoms associated with hypothyroidism, such as fatigue, weight gain, and sensitivity to cold.

The other conditions listed do not relate to the therapeutic action of levothyroxine. For instance, hypertension involves high blood pressure and is typically managed with antihypertensive medications. Hyperthyroidism, on the other hand, is characterized by an overactive thyroid, and its treatment often involves medications that suppress hormone production or other interventions aimed at lowering hormone levels rather than using levothyroxine. Anemia is a condition characterized by a deficiency in red blood cells or hemoglobin and is addressed through different types of treatments, such as iron supplements or vitamin B12 injections, depending on the underlying cause.