Patient Summary

Step 1 — Is This Symptomatic or Asymptomatic?

Step 2 — Lifestyle & Dietary Modifications (First-Line)

• Avoid organ meats (liver, kidney, sweetbreads), red meat in excess, shellfish, anchovies, sardines
• Limit alcohol — especially beer and spirits (alcohol raises uric acid via lactate production inhibiting urate excretion)
• Reduce fructose-rich beverages (fruit juices, soft drinks)
• Increase water intake — target >2 L/day to maintain urine volume and facilitate uric acid excretion
• Low-fat dairy products and cherries may have mild urate-lowering effects

• Weight reduction if overweight (obesity increases uric acid)
• Review medications — diuretics (especially thiazides), low-dose aspirin, cyclosporine, and pyrazinamide all raise uric acid; consider alternatives if clinically appropriate
• SGLT2 inhibitors (if diabetic) and losartan (if hypertensive) have mild uricosuric properties and can be preferred choices in those contexts

Step 3 — Pharmacotherapy (When Indicated)

1. Recurrent gout attacks (≥2/year)
2. Chronic tophaceous gout
3. Uric acid nephrolithiasis
4. Uric acid >9–10 mg/dL even if asymptomatic (especially with CKD, cardiovascular disease, or diabetes)
5. Tumor lysis syndrome prophylaxis

Drug Options

• Mechanism: Inhibits xanthine oxidase → blocks conversion of hypoxanthine → xanthine → uric acid
• Dose: Start 100 mg/day, titrate by 100 mg increments weekly; typical maintenance 300 mg/day
• Works for both over-producers and under-excretors
• Key caution: HLA-B*5801 screening recommended before use (especially in Han Chinese, Korean, Thai populations) — risk of severe cutaneous reactions (Stevens-Johnson syndrome)
• If rash develops, discontinue immediately
• Dose-adjust in renal impairment (his creatinine is normal, so standard dosing applies)

• Dose: 40–80 mg/day orally
• Urate-lowering effect is comparable to allopurinol
• Not recommended for asymptomatic hyperuricemia (approved only for gout with attacks)
• Contraindicated with azathioprine or mercaptopurine (inhibits XO-mediated metabolism of these drugs)
• Use with caution in cardiovascular disease (slightly higher cardiovascular event rate vs. allopurinol in some trials)

• Reserved for under-excretors with normal/near-normal renal function
• Increase renal uric acid excretion by blocking URAT-1 transporter
• Less commonly used; require adequate urine output to avoid stone formation

• For severe, treatment-refractory chronic gout only
• Enzymatically converts uric acid → allantoin (more soluble)
• IV infusion every 2 weeks; antibody formation limits long-term efficacy

Step 4 — Preventing Gout Flares When Starting ULT

• Co-prescribe colchicine 0.5–0.6 mg once or twice daily as prophylaxis for the first 3–6 months
• Alternatively, low-dose NSAID (e.g., naproxen 250 mg BD) with a PPI
• It is now considered safe to initiate allopurinol during an acute attack if anti-inflammatory cover is given concurrently — Goodman & Gilman's Pharmacological Basis of Therapeutics, p. 868

Practical Recommendation for This Patient

1. Start with 3 months of strict dietary modification — reduce red meat, alcohol, fructose; increase water intake
2. Recheck serum uric acid in 3 months
3. If uric acid remains >8 mg/dL or if any symptoms develop (joint pain, tophi) → start allopurinol 100 mg/day, titrate to target <6 mg/dL
4. Check for coexisting metabolic syndrome (hypertension, diabetes, dyslipidemia) — hyperuricemia is frequently a part of this cluster and may warrant more aggressive management

Note: This interpretation is for educational purposes. Clinical decisions should be correlated with the patient's full history, symptoms, and physician assessment.