Thyrox 88 Tablet is used for the treatment of hypothyroidism or low secretion of thyroid hormone. It contains Levothyroxine sodium, which works by replacing the body's normally produced thyroid hormone. It minimizes symptoms of low thyroid hormone-like unknown weight gain, fatigue, and sensitivity to the cold. It may cause side effects like headache, weight loss, diarrhoea, irritability and nervousness. Before taking this medicine, you should tell your doctor if you are allergic to any of its components or if you are pregnant/breastfeeding, and about all the medications you are taking and pre-existing medical conditions.