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Drug interactions

Bevacizumab + Irinotecan liposomal

Severity: Moderate

Bevacizumab and Irinotecan liposomal: 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

Both drugs can cause serious gastrointestinal toxicity and bevacizumab may add to the risk of diarrhea, neutropenia and gastrointestinal perforation. The combination is used in practice but needs careful toxicity surveillance.

What this interaction means in plain words

Bevacizumab and Irinotecan liposomal 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.

Evidence level: Moderate

Why it happens

Additive pharmacodynamic toxicity; irinotecan causes myelosuppression and diarrhea while bevacizumab adds mucosal and vascular toxicity.

What to do

Monitor blood counts and bowel function and treat diarrhea promptly; reduce irinotecan dose or hold treatment for grade 3-4 toxicity.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Bevacizumab with Irinotecan liposomal?

MediHelp rates the interaction as moderate. Bevacizumab and Irinotecan liposomal 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. Both drugs can cause serious gastrointestinal toxicity and bevacizumab may add to the risk of diarrhea, neutropenia and gastrointestinal perforation. The combination is used in practice but needs careful toxicity surveillance.

How serious is the interaction between Bevacizumab and Irinotecan liposomal?

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 blood counts and bowel function and treat diarrhea promptly; reduce irinotecan dose or hold treatment for grade 3-4 toxicity.

What other medicines interact with Bevacizumab?

MediHelp also lists interactions of Bevacizumab with, for example, Sunitinib, Daunorubicin, Dengue vaccine. The full list is on the Bevacizumab page.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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