Drug interactions
Carboplatin + Lomustine
Severity: Major
Carboplatin and Lomustine: major interaction.
Last updated Sources: Base de donnees publique des medicaments (France)
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 suppress the bone marrow, particularly platelets, so combination raises the risk of prolonged thrombocytopenia and neutropenia.
What this interaction means in plain words
Carboplatin 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.
Carboplatin belongs to Oncology; Lomustine belongs to Oncology.
Why it happens
Additive myelosuppression with lomustine's delayed nadir.
What to do
Monitor blood counts weekly through the expected nadir and reduce doses or delay cycles for severe cytopenias.
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?
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References
Other interactions of Lomustine
- Adenovirus types 4 and 7 live + Lomustine Contraindicated
- Bcg vaccine live + Lomustine Contraindicated
- Influenza virus vaccine quadrivalent intranasal + Lomustine Contraindicated
- Lomustine + Measles mumps and rubella vaccine Contraindicated
- Lomustine + Measles mumps and rubella vaccine live Contraindicated
- Lomustine + Measles mumps rubella and varicella vaccine live Contraindicated
Other interactions of Carboplatin
Frequently asked questions
Can I take Carboplatin with Lomustine?
MediHelp rates the interaction as major. Carboplatin 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. Both drugs suppress the bone marrow, particularly platelets, so combination raises the risk of prolonged thrombocytopenia and neutropenia.
How serious is the interaction between Carboplatin 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: Monitor blood counts weekly through the expected nadir and reduce doses or delay cycles for severe cytopenias.
What other medicines interact with Lomustine?
MediHelp also lists interactions of Lomustine with, for example, Adenovirus types 4 and 7 live, Bcg vaccine live, Influenza virus vaccine quadrivalent intranasal. The full list is on the Lomustine page.
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