Twenty-seven patients with typical attacks of acute gouty arthritis were treated with fentiazac, 200 mg, three times daily for six days. One patient dropped out after three days of treatment because of drug inefficacy. On third day of treatment, all evaluated signs and symptoms improved significantly; at the end of trial, 24 patients were in good condition in regard to their joints, one was fair, and one poor. Six patients had side effects, transient and slight to moderate. Most probably were related to the medication.