Allopurinol Tablet can inhibit xanthine oxidase, thus inhibiting the synthesis of uric acid, and can treat chronic gout, gout stones, primary and secondary hyperuricemia, hyperuricemia with renal insufficiency, uric acid nephropathy and kidney stones. There may be side effects such as nausea, fever, vomiting, rash, diarrhea, abdominal pain, anemia, alopecia, leukopenia, liver and kidney impairment. The drug can aggravate the symptoms of gouty arthritis in the acute stage, so it cannot be used in the treatment of its acute stage, but rather, it should be used in small doses starting after the acute symptoms disappear, and the indicators of uric acid, liver and kidney function, and blood picture should be monitored regularly. Drink plenty of water during the use of the drug, should not drink alcohol, and should not be combined with iron. The drug can interact with azathioprine, thiazide diuretics, etanercept, furosemide and other drugs, so you should consult a professional doctor or pharmacist before use. It is contraindicated in the following cases: allergy to the drug; pregnant and lactating women; significant reduction of blood cells; severe liver and kidney insufficiency. Elderly patients should use with caution. If you need to use the drug, please be sure to follow the instructions of the doctor or pharmacist under the guidance of the medication, do not self-medication.