Drug interactions
Colchicine + Talquetamab
Severity: Moderate
Colchicine and Talquetamab: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Talquetamab can trigger cytokine release syndrome, and the raised cytokines may temporarily suppress CYP3A4 activity. Colchicine exposure may rise as a result, and colchicine has a narrow therapeutic index with risk of severe toxicity such as GI effects, myopathy and marrow suppression.
What this interaction means in plain words
Colchicine and Talquetamab can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Colchicine belongs to Genitourinary; Talquetamab belongs to Oncology.
Why it happens
Cytokine-mediated downregulation of CYP3A4 during cytokine release syndrome reduces colchicine metabolism.
What to do
Monitor for colchicine toxicity (diarrhea, vomiting, muscle pain or weakness, cytopenias) from step-up dosing until about 14 days after the first treatment dose and during CRS. Reduce the colchicine dose or temporarily interrupt it if signs of toxicity appear.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Colchicine
- Clarithromycin + Colchicine Contraindicated
- Cobicistat + Colchicine Contraindicated
- Colchicine + Cyclosporine Contraindicated
- Colchicine + Ensitrelvir Contraindicated
- Colchicine + Levoketoconazole Contraindicated
- Colchicine + Nirmatrelvir Contraindicated
Other interactions of Talquetamab
- Clozapine + Talquetamab Major
- Pimozide + Talquetamab Major
- Bendamustine + Talquetamab Moderate
- Carbamazepine + Talquetamab Moderate
- Clomipramine + Talquetamab Moderate
- Cyclosporin + Talquetamab Moderate
Frequently asked questions
Can I take Colchicine with Talquetamab?
MediHelp rates the interaction as moderate. Colchicine and Talquetamab can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Talquetamab can trigger cytokine release syndrome, and the raised cytokines may temporarily suppress CYP3A4 activity. Colchicine exposure may rise as a result, and colchicine has a narrow therapeutic index with risk of severe toxicity such as GI effects, myopathy and marrow suppression.
How serious is the interaction between Colchicine and Talquetamab?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for colchicine toxicity (diarrhea, vomiting, muscle pain or weakness, cytopenias) from step-up dosing until about 14 days after the first treatment dose and during CRS. Reduce the colchicine dose or temporarily interrupt it if signs of toxicity appear.
What other medicines interact with Colchicine?
MediHelp also lists interactions of Colchicine with, for example, Clarithromycin, Cobicistat, Cyclosporine. The full list is on the Colchicine page.
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