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Drug interactions

Carmustine + Cisplatin

Severity: Moderate

Carmustine and Cisplatin: 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 agents cause myelosuppression, with carmustine producing delayed and cumulative marrow toxicity. Combining them can cause prolonged neutropenia and thrombocytopenia with infection and bleeding risks.

What this interaction means in plain words

Carmustine and Cisplatin 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.

Carmustine belongs to Oncology; Cisplatin belongs to Oncology.

Evidence level: Moderate

Why it happens

Additive bone marrow suppression from DNA-damaging agents.

What to do

Monitor blood counts frequently, including at the delayed nadir, and adjust doses or delay cycles for cytopenias.

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 Carmustine with Cisplatin?

MediHelp rates the interaction as moderate. Carmustine and Cisplatin 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 agents cause myelosuppression, with carmustine producing delayed and cumulative marrow toxicity. Combining them can cause prolonged neutropenia and thrombocytopenia with infection and bleeding risks.

How serious is the interaction between Carmustine and Cisplatin?

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 frequently, including at the delayed nadir, and adjust doses or delay cycles for cytopenias.

What other medicines interact with Cisplatin?

MediHelp also lists interactions of Cisplatin with, for example, Cidofovir, Adefovir, Adenovirus types 4 and 7 live. The full list is on the Cisplatin 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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