Colchicine Dosing Guidelines

Acute Gout Flare Treatment

For acute gout flares, administer colchicine 1.2 mg at the first sign of symptoms, followed by 0.6 mg one hour later, but only if treatment can be initiated within 36 hours of symptom onset, as recommended by the American College of Rheumatology 1, 2
The initial loading dose of 1.2 mg followed by 0.6 mg one hour later is effective for acute gout treatment, according to the American College of Rheumatology 1
Colchicine is only effective if started within 36 hours of symptom onset; effectiveness significantly decreases beyond this timeframe, as stated by the American College of Rheumatology 1, 2, 5

For prophylaxis of gout flares, use colchicine 0.6 mg once or twice daily, initiated with or just prior to starting urate-lowering therapy, as recommended by the American College of Rheumatology 1, 3, 5
The standard prophylactic dose is 0.6 mg once or twice daily, according to the American College of Rheumatology 1, 4, 3
Prophylaxis should be continued for at least 6 months, or 3 months after achieving target serum urate without tophi, or 6 months after achieving target serum urate and resolution of tophi on physical exam, as recommended by the American College of Rheumatology 4, 3, 5

Colchicine is absolutely contraindicated with strong P-glycoprotein and/or CYP3A4 inhibitors in patients with renal or hepatic impairment, as stated by the American College of Clinical Pharmacy 5
Significant dose reductions are mandatory when used with clarithromycin, erythromycin, cyclosporine, azole antifungals, and calcium channel blockers, according to the American College of Clinical Pharmacy 1, 3, 5

The outdated high-dose regimen for acute gout should not be used; the low-dose regimen is equally effective with significantly fewer side effects, as recommended by the American College of Rheumatology 1
The 36-hour window for colchicine effectiveness should not be ignored, as stated by the American College of Rheumatology 1, 2, 5
Creatinine clearance should always be calculated before prescribing colchicine, especially in elderly patients, as recommended by the American College of Clinical Pharmacy 5