Uric acid 550 μmol / L, take 20 days phenylbromarone usually useful, but hyperuricemia is a chronic disease, to long-term medication, can be adjusted according to the blood uric acid level of the dose. Benzbromarone is mainly used to lower uric acid by inhibiting the reabsorption of urate in renal tubules and increasing the excretion of uric acid. The oral dose should be gradually increased from a small dose, and the dose should be adjusted according to the uric acid level after 2 to 5 weeks. During the period of administration, a large amount of water should be consumed to promote urination and achieve synergistic effect, and sodium bicarbonate should be taken at the same time to alkalize the urine and avoid the formation of uric acid crystals. Benzbromarone is inhibited by inhibiting renal tubular reabsorption and play a role, so the renal function of moderate to severe damage and have kidney stones is prohibited; after taking the drug may appear nausea, vomiting, gastric feeling of fullness, urticaria and other discomforts. Attention to drink a lot of water during the use of drugs, is conducive to uric acid excretion. Uric acid 550μmol / L take benzbromarone is usually useful, but it is recommended to go to the hospital, under the guidance of the doctor to use the drug and adjust the dosage, not to stop the drug.