Low triiodothyronine needs a clear cause, may be hypothyroidism, thyroiditis, thyroid tuberculosis and other diseases, such as hypothyroidism can be prescribed to take levothyroxine sodium tablets. 1. hypothyroidism: hypothyroidism caused by low triiodothyronine, the patient can follow the doctor’s prescription oral levothyroxine sodium tablets and other drugs. 2. Thyroiditis: Thyroiditis can also lead to low triiodothyronine, patients can take oral propranolol tablets, metoprolol tartrate tablets and other beta-blockers as prescribed by the doctor. If the patient has thyroid pain, you can also take oral aspirin tablets, ibuprofen extended-release capsules and other non-steroidal anti-inflammatory drugs as prescribed by the doctor. 3. Thyroid tuberculosis: For low triiodothyronine caused by thyroid tuberculosis, patients can take anti-tuberculosis drugs such as isoniazid tablets and rifampicin tablets as prescribed by the doctor. Low triiodothyronine should be treated under doctor’s guidance.