system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 56-year-old man comes to the physician for a follow-up examination. Two weeks ago, he was treated for an acute gout attack of the metatarsophalangeal joints of his right big toe. His symptoms improved with naproxen. He has had three other similar episodes of joint pain in his toes and ankles during the last year that improved with over-the-counter analgesics. He does not currently take any medications. He used to drink 3–5 beers daily but has recently cut down. He is a chef at a steakhouse. His temperature is 37.0°C (98.6°F), pulse is 76/min, and blood pressure is 147/83 mm Hg. Examination of his right big toe shows minimal tenderness; there is no warmth or apparent deformity. The remainder of the examination shows no abnormalities. His serum creatinine concentration is 0.9 mg/dL. Long-term treatment with which of the following drugs is most appropriate to prevent future gout attacks?
assistant
Allopurinol