The generic name of Eugenol is Levothyroxine Sodium Tablet, taking this product itself usually does not cause kidney pain, kidney pain during the use of medication is usually related to kidney stones, hydronephrosis, acute pyelonephritis and other diseases, according to the cause of the disease under the guidance of the doctor to carry out general treatment, medication and so on. 1. Kidney stone: If there is a stone formed in the kidney, which has not been discharged and presses on the peripheral nerve tissues, it will cause kidney pain and lumbago, which is not related to taking thyroxine sodium. The stones should be removed as soon as possible. 2. Hydronephrosis: when the amount of fluid accumulated in the kidneys gradually increases, it will easily cause local edema, and there will be back pain and kidney pain when lying down. Less fluid accumulation does not need special treatment, but need to remove the cause of the disease and protect the kidneys; if the infection is serious, you can follow the doctor’s advice to take ofloxacin, amoxicillin and so on, and more fluid accumulation needs to be drained as soon as possible. 3. Acute pyelonephritis: it is an inflammation that occurs in the renal pelvic tissues, and the stimulation of inflammation may cause kidney pain, which is usually not related to taking thyroxine sodium tablets. When combined with inflammatory infections, drugs such as oral ciprofloxacin are needed. However, when taking Thyroxine Sodium Tablets, it is important to note that it is contraindicated if you are allergic to any of the ingredients of this product. A small number of patients may experience tachycardia, palpitations, headache and other symptoms during the use of the drug, usually without special treatment, severe symptoms need to be discontinued, but the specific use of the drug should be carried out in accordance with medical advice.