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Drug interactions

Fingolimod + Lomustine

Severity: Major

Fingolimod and Lomustine: major 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 and fingolimod reduces circulating lymphocytes. Combined use increases the risk of serious infections and profound cytopenias.

What this interaction means in plain words

Fingolimod and Lomustine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Fingolimod belongs to Central Nervous System; Lomustine belongs to Oncology.

Evidence level: Moderate

Why it happens

Additive immunosuppression and bone marrow suppression.

What to do

Avoid combining when possible. If used together, monitor blood counts and closely watch for infection, and consider the lingering effects of one drug when switching to the other.

What to ask your pharmacist

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

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 Fingolimod with Lomustine?

MediHelp rates the interaction as major. Fingolimod and Lomustine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Lomustine is a myelosuppressive alkylating agent and fingolimod reduces circulating lymphocytes. Combined use increases the risk of serious infections and profound cytopenias.

How serious is the interaction between Fingolimod and Lomustine?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid combining when possible. If used together, monitor blood counts and closely watch for infection, and consider the lingering effects of one drug when switching to the other.

What other medicines interact with Fingolimod?

MediHelp also lists interactions of Fingolimod with, for example, Adenovirus types 4 and 7 live, Bcg vaccine live, Pimozide. The full list is on the Fingolimod 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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