Colchicine and Telaprevir: Interaction Details
AI-assisted, pharmacist-reviewed · AI content regenerated Jul 11, 2026 · Source data updated Jul 2, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Telaprevir
No brand names on recordColchicine
How we grade severity & evidence
Severity levels
- Contraindicated: These should generally not be used together.
- Major: Potentially serious — often needs a change or close monitoring.
- Moderate: Can be significant — usually manageable with monitoring.
- Minor: Usually limited clinical impact.
Evidence grades
- Established: Well documented — supported by controlled studies or strong clinical data.
- Probable: Good supporting evidence, though not definitively proven.
- Suspected: Some evidence suggests this interaction, but it is not well established.
- Possible: Limited or conflicting evidence; the interaction may occur.
- Theoretical: Predicted from the drugs' pharmacology; not yet confirmed in people.
Ratings come from the documented interaction literature and are reviewed by a pharmacist. They describe the documented risk of the combination, not what will necessarily happen to you — your dose, timing, and health picture all matter.
Telaprevir can cause colchicine to build up in your body. Telaprevir blocks two systems (an enzyme called CYP3A4 and a transporter called P-gp) that your body normally uses to clear colchicine out. When those systems are slowed down, colchicine levels can climb much higher than intended.
That matters because too much colchicine can be very dangerous, even life-threatening, with problems like severe diarrhea, muscle weakness, and blood or organ trouble. Please do not stop or change either medicine on your own. The good news is your care team can manage this by adjusting your colchicine dose and watching you closely, or by choosing a different plan. Talk with your pharmacist or doctor before taking both.
Direction: Telaprevir (dual strong CYP3A4 and P-gp inhibitor) reduces colchicine metabolism and efflux, increasing colchicine exposure and toxicity risk. Colchicine is the affected (victim) substrate; neither drug's effect is prodrug-dependent here.
- Severity: Contraindicated; fatal toxicity reported at therapeutic colchicine doses.
- Contraindicated absolutely in renal or hepatic impairment.
- Evidence: Theoretical/label-based, but consistent with documented CYP3A/P-gp inhibitor cases.
- Management (normal renal/hepatic function, if unavoidable): reduce colchicine dose/frequency; gout flare 0.6 mg then 0.3 mg 1 h later, repeat no sooner than 3 days; prophylaxis 0.3 mg daily or every other day; FMF max 0.6 mg/day. Applies within 14 days of telaprevir. Monitor for toxicity (GI, myelosuppression, neuromuscular).
What happens
Increased colchicine exposure and an increased risk of colchicine toxicity
Interaction Deep Dive
The combination of colchicine with agents that inhibit both CYP3A4 and P-glycoprotein (P-gp) strongly is contraindicated, since therapeutic colchicine doses have produced life-threatening and fatal colchicine toxicity in such patients1. Likewise, giving colchicine alongside a dual CYP3A4 and P-glycoprotein (P-gp) inhibitor such as telaprevir is contraindicated when the patient has renal or hepatic impairment. When patients have normal hepatic and renal function and combined use cannot be avoided, the colchicine dose must be modified, either by lowering the daily amount or by decreasing how often it is given, and the patient must be watched closely for colchicine toxicity3. Where coadministration is necessary, patients with normal renal and hepatic function who are receiving telaprevir concurrently, or who have taken it within the previous 14 days, require a colchicine dose adjustment. For treating a gout flare, cut the colchicine dose to a single 0.6 mg tablet followed by 0.3 mg one hour afterward, and do not repeat the dose sooner than 3 days. For gout flare prophylaxis, decrease the colchicine dose from 0.6 mg twice daily to 0.3 mg once daily or once every other day. For familial Mediterranean fever, the colchicine dose should not exceed a maximum of 0.6 mg/day2.
Why it happens (mechanism)
Inhibition of CYP3A-mediated metabolism of colchicine; inhibition of P-gp-mediated efflux transport of colchicine
How to manage this interaction
These two together are considered off-limits at normal colchicine doses because colchicine can reach dangerous levels. If you have any kidney or liver problems, this combination should be avoided entirely.
- Keep taking your medicines as prescribed and do not adjust anything yourself.
- If both are truly needed and your kidney and liver function are normal, your care team will lower your colchicine dose or space it out further and watch you closely.
- This caution also applies if you took telaprevir within the last 14 days.
- Contact your pharmacist or prescriber right away, and report severe diarrhea, vomiting, muscle weakness, numbness, or unusual bruising.
Management is individual — confirm any change with your pharmacist or prescriber.
Literature reports
1 report — tap to read
a) In a study involving 23 patients, taking a 0.6-mg dose of colchicine together with clarithromycin 250 mg twice daily over 7 days produced increases of 227.2% in colchicine Cmax and 281.5% in colchicine AUC compared with baseline 2.
Common questions
Can I take Colchicine and Telaprevir together?
Telaprevir raises colchicine to potentially life-threatening levels, so this combination is contraindicated, especially with any kidney or liver impairment. Do not take both without your care team reviewing and, if truly needed, reducing your colchicine dose and monitoring you closely. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Colchicine and Telaprevir interaction?
It is rated contraindicated. These should generally not be used together.
How quickly could this interaction happen?
The documented onset is "unspecified". The timing of this interaction is not well characterized.
How is the Colchicine and Telaprevir interaction managed?
These two together are considered off-limits at normal colchicine doses because colchicine can reach dangerous levels. If you have any kidney or liver problems, this combination should be avoided entirely. Keep taking your medicines as prescribed and do not adjust anything yourself. If both are truly needed and your kidney and liver function are normal, your care team will lower your colchicine do… Management is individual — always follow your own care team's guidance.
How strong is the evidence for this interaction?
The evidence is graded "theoretical". Predicted from the drugs' pharmacology; not yet confirmed in people.
Questions for your pharmacist
- Does my dose of Colchicine or Telaprevir need adjusting while I take them together?
- What symptoms should prompt me to call you or my prescriber right away?
- Does the timing of my doses matter for this combination?
- Is there a safer alternative to one of these medications for me?
References (3)
- Product Information: LODOCO(R) oral tablets, colchicine oral tablets. AGEPHA Pharma USA, LLC (per FDA), Parsippany, NJ, 2023. DailyMed
- Product Information: COLCRYS oral tablets, colchicine oral tablets. Takeda Pharmaceuticals America Inc (per FDA), Deerfield, IL, 2020. DailyMed
- Product Information: GLOPERBA(R) oral solution, colchicine oral solution. Romeg Therapeutics LLC (per FDA), Woburn, MA, 2019. DailyMed
Keep reading about Telaprevir
Keep reading about Colchicine
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