Flares are expected early in therapy
Two months after starting allopurinol, the client has a mild flare in the left ankle. Flares are common in the first months of urate-lowering therapy, because falling serum urate mobilizes crystals from deposits in the joints. This does not mean the drug is failing. The correct instruction is to keep taking allopurinol and treat the flare promptly with the plan the prescriber has given, such as an anti-inflammatory dose.
Why allopurinol is not stopped
Allopurinol is a xanthine oxidase inhibitor that lowers uric acid production. Stopping it during a flare lets serum urate rise again and then fall when it is restarted, and these swings themselves provoke more flares and prolong the problem. Once urate-lowering therapy is established, the guideline is to continue it without interruption. Starting allopurinol is usually deferred until a flare settles or begun with anti-inflammatory cover, but an existing dose is not stopped.
Why prophylaxis continues
Low-dose colchicine prophylaxis reduces the number and severity of early flares but does not abolish them. It is continued for at least 3–6 months after starting urate-lowering therapy, and longer if flares persist or tophi are present. A single mild flare is therefore not a reason to stop colchicine.
| Option | Effect | Verdict |
|---|
| Stop allopurinol until settled | Urate fluctuates; flares continue | Wrong |
| Continue allopurinol, treat flare | Stable urate lowering with prompt flare control | Correct |
| Double allopurinol for 3 days | Rapid urate drop can worsen flares; dose changes belong to the prescriber | Wrong |
| Stop colchicine | Removes protection during the high-risk period | Wrong |
Watch out! Doubling the allopurinol dose seems logical, but allopurinol does not treat an acute flare. It is titrated gradually by the prescriber, and a sudden large drop in urate can trigger more flares.
Client teaching
The nurse explains that early flares are expected and are a sign of crystals dissolving, encourages adherence to both drugs, advises adequate fluid intake, and reviews the flare plan: start the prescribed treatment at the first sign of pain, rest and elevate the joint, and call if the flare is severe or does not improve. Key point! Do not stop established allopurinol during a gout flare; treat the flare and continue prophylaxis for at least 3 to 6 months.