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Gout is common in CKD — but the usual toolbox shrinks: NSAIDs are mostly off-limits, and colchicine and allopurinol need renal dosing. How to treat flares and prevent attacks safely.
Evidence reviewed & updated: 2026-08 — reflects the latest published trials and guidelines.
Gout and CKD are inseparable: the kidneys excrete urate, so gout prevalence rises as GFR falls — and chronic gout drives further kidney damage. Treatment must be renal-aware: NSAIDs are mostly off-limits, colchicine and allopurinol are dose-adjusted, and the urate target is <6.0 mg/dL.
The kidney excretes roughly two-thirds of daily urate. As GFR falls, urate clearance drops — serum uric acid rises, crystals deposit in joints, and gout flares. Diuretics (common in CKD) further reduce urate excretion. The result: gout prevalence climbs from ~5% in the general population toward 25%+ in advanced CKD.
Gout isn't just a joint nuisance: chronic hyperuricemia is associated with faster CKD progression, and gout flares are a major driver of hospitalization in kidney patients.
NSAIDs are the standard first-line for gout — but in CKD they're mostly off-limits (AKI risk, BP effects, blunting of ACEi/ARB). The CKD flare toolkit: colchicine with renal dosing, prednisone (short course, careful in diabetes), or intra-articular steroid injection for single-joint flares.
Colchicine renal rules (FDA label): CrCl 30-59 → 0.3 mg BID; 10-29 → 0.3 mg daily; <10 or dialysis → 0.3 mg twice weekly. Diarrhea is the earliest toxicity sign — stop and call.
The goal: serum urate below 6.0 mg/dL (below 5.0 with tophi). Allopurinol is first-line — start at 50-100 mg/day in CKD (never a high first dose — hypersensitivity risk), titrate every 2-5 weeks, and check urate to confirm the target. Febuxostat is the alternative with no renal titration, but the CARES trial context (cardiovascular) makes allopurinol the usual first choice.
Start urate-lowering during or shortly after a flare — with colchicine cover for the first months to prevent flare-on-initiation. Continue allopurinol during flares; stopping it worsens them.
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