[The effect of benzbromaron in gout patients with limited kidney function]

The effect of the uricosuric drug benzdromarone was investigated in 15 patients with hyperuricemia and renal failure. Benzbromarone micron was given in a dose of 80 mg/day for 6 days. The mean serum uric acid level fell from 8.9 to 4.24 mg/100 ml. After therapy uric acid concentrations in serum returned to 5.2 mg/100 ml. Renal urate elimination was increased from 487 mg/day to 831.3 mg/day; after medication urate elimination decreased to the initial values. Uric acid clearance was increased by benzbromarone from 3.97 to 11.1 ml/min, and even after therapy a uric acid clearance of 6.4 ml/min could be measured. A decrease of uric acid reabsorption from 4.73 to 2.3 mg/min was observed, after medication the reabsorption rate increased to 3.42 mg/min.