L-Thyroxine: A Thyroid Hormone Replacement
L-Thyroxine, or levothyroxine, is a synthetic thyroid hormone used primarily to treat hypothyroidism, where insufficient hormone production results in fatigue, weight gain, and mental fog. It supplements missing thyroid hormones, normalizing metabolism. Dosage varies based on age, weight, and health conditions, requiring monitoring to ensure effectiveness and minimize side effects.

