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Drug interactions

Lomustine + Vedolizumab

Severity: Moderate

Lomustine and Vedolizumab: 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

Lomustine is a myelosuppressive alkylating agent with delayed and prolonged marrow toxicity. With vedolizumab, infection risk may rise, particularly gastrointestinal infections.

What this interaction means in plain words

Lomustine and Vedolizumab 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.

Lomustine belongs to Oncology; Vedolizumab belongs to Gastrointestinal Tract.

Evidence level: Low

Why it happens

Additive immunosuppression from delayed myelosuppression and gut-selective lymphocyte trafficking blockade.

What to do

Monitor complete blood counts, including nadir counts several weeks after lomustine, and evaluate promptly for infection.

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 Lomustine with Vedolizumab?

MediHelp rates the interaction as moderate. Lomustine and Vedolizumab 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. Lomustine is a myelosuppressive alkylating agent with delayed and prolonged marrow toxicity. With vedolizumab, infection risk may rise, particularly gastrointestinal infections.

How serious is the interaction between Lomustine and Vedolizumab?

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 complete blood counts, including nadir counts several weeks after lomustine, and evaluate promptly for infection.

What other medicines interact with Vedolizumab?

MediHelp also lists interactions of Vedolizumab with, for example, Natalizumab, Baricitinib, Certolizumab pegol. The full list is on the Vedolizumab 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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