Thyroxinol 100 Tablet is a medication used to treat hypothyroidism, a condition where the thyroid gland produces insufficient hormones. It helps regulate energy and metabolism. Before taking the medication, a blood test is conducted to determine the appropriate dose. Regular blood tests are conducted to monitor its effectiveness. It is best taken on an empty stomach before meals. Side effects include palpitations, vomiting, anxiety, diarrhea, weight loss, tremors, increased appetite, and restlessness. It should not be used for obesity or pregnancy. Other medications may affect its effectiveness.