What is colchicine?
Colchicine (brand names Colcrys, Mitigare) is one of the oldest anti-inflammatory medications still in use — it was originally derived from the autumn crocus plant. It works by blocking neutrophil migration and disrupting inflammatory pathways at the cellular level, which makes it uniquely effective for certain crystal-driven and inflammatory conditions.
Colchicine is most commonly used for:
- Gout flare treatment — stopping an acute attack
- Gout flare prevention — reducing the frequency of attacks while starting urate-lowering therapy
- Familial Mediterranean fever (FMF) — the primary treatment
- Pericarditis — reducing recurrent episodes
How to take it
For an acute gout flare
- 1.2 mg (two 0.6 mg tablets) at the first sign of a flare
- 0.6 mg one hour later
- Maximum: 1.8 mg per flare (3 tablets total over 1 hour)
Important: The old advice to “take colchicine every hour until you get diarrhea” is outdated and dangerous. The modern low-dose approach works just as well with far fewer side effects. Do not exceed the doses above.
Colchicine works best when taken at the very first sign of a flare — the tingling, warmth, or mild ache that tells you something is coming. Waiting even a few hours significantly reduces its effectiveness.
For flare prevention
- 0.6 mg once or twice daily, as directed by your doctor
- This is typically continued for 3–6 months when starting a urate-lowering medication like allopurinol or febuxostat
What to expect when starting
For acute flares, you should notice improvement within 12–24 hours if you caught the flare early. For prevention, colchicine reduces the frequency and severity of flares over time — you may still get occasional mild flares, especially in the first few months of urate-lowering therapy.
Lab monitoring
There are no routine labs required specifically for colchicine. However, your doctor will periodically check your kidney function because colchicine is cleared by the kidneys — impaired kidney function increases the risk of side effects and may require a dose reduction.
Side effects to watch for
Common (dose-related):
- Diarrhea — the most common side effect. Usually means the dose is too high. Let us know if this is bothersome.
- Nausea, vomiting, or abdominal cramping
- These GI side effects are typically manageable and improve with dose adjustment.
Serious but rare:
- Muscle weakness or pain (myopathy/rhabdomyolysis) — more likely if you take a statin or have kidney impairment. Report unexplained muscle pain or weakness immediately.
- Bone marrow suppression — unusual bruising, bleeding, or signs of infection
- Numbness or tingling in the hands or feet (neuropathy)
Call us right away if you develop unexplained muscle pain, weakness, numbness, persistent diarrhea, or signs of infection while on colchicine.
Things to avoid
Critical drug interactions
Colchicine has important interactions that can cause dangerous toxicity. Always tell your prescribing doctor and pharmacist that you take colchicine, especially before starting:
- Statins (atorvastatin, simvastatin, etc.) — increased risk of muscle damage. The combination can be used safely but requires awareness and sometimes dose adjustment.
- Clarithromycin (Biaxin) — can dramatically increase colchicine levels. An alternative antibiotic should be used.
- Cyclosporine — increased colchicine toxicity
- Strong CYP3A4 inhibitors — including certain antifungals (ketoconazole, itraconazole) and HIV protease inhibitors
If you have kidney or liver impairment, your colchicine dose must be reduced, and some drug combinations should be avoided entirely.
- Grapefruit juice — can increase colchicine levels in large quantities. Small amounts are generally fine, but it is worth mentioning to your doctor.
Frequently asked questions
Can I take colchicine with NSAIDs like ibuprofen? Yes, colchicine and NSAIDs work through different mechanisms and can sometimes be used together for acute flares if your doctor recommends it.
What if I miss a dose of my daily prevention colchicine? Take it as soon as you remember. If it is close to your next scheduled dose, skip the missed dose. Do not double up.
I started having a flare but didn’t take colchicine right away. Should I still take it? It may still help if taken within the first 24–36 hours, but effectiveness drops significantly after that. For flares that are well-established, other treatments like NSAIDs or corticosteroids may work better.
Is colchicine safe long-term? Yes, many patients take low-dose colchicine safely for years, particularly those with FMF or recurrent pericarditis. Your doctor will monitor kidney function periodically.
Can I drink alcohol while taking colchicine? Colchicine itself does not interact with alcohol, but if you have gout, alcohol (especially beer and liquor) can trigger flares. Moderation is wise.
This handout is for informational purposes only and does not replace the advice of your physician. Always follow your doctor’s specific instructions about your medications. If you have questions or concerns, contact Synergy Rheumatology & Wellness.