Drug interactions
Cyclophosphamide + Deferiprone
Severity: Major
Cyclophosphamide and Deferiprone: 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
Deferiprone can cause neutropenia and agranulocytosis, and cyclophosphamide is itself myelosuppressive. Combined use increases the risk of severe, potentially fatal infections.
What this interaction means in plain words
Cyclophosphamide and Deferiprone 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.
Cyclophosphamide belongs to Oncology; Deferiprone belongs to Miscellaneous.
Why it happens
Additive bone marrow suppression with pharmacodynamic synergy on neutrophil depletion.
What to do
Avoid the combination if possible. If necessary, monitor the absolute neutrophil count more frequently and interrupt deferiprone if neutropenia develops.
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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Other interactions of Cyclophosphamide
Other interactions of Deferiprone
- Clozapine + Deferiprone Contraindicated
- Abemaciclib + Deferiprone Major
- Acalabrutinib + Deferiprone Major
- Ado-trastuzumab emtansine + Deferiprone Major
- Ado-trastuzumab + Deferiprone Major
- Aldesleukin + Deferiprone Major
Frequently asked questions
Can I take Cyclophosphamide with Deferiprone?
MediHelp rates the interaction as major. Cyclophosphamide and Deferiprone 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. Deferiprone can cause neutropenia and agranulocytosis, and cyclophosphamide is itself myelosuppressive. Combined use increases the risk of severe, potentially fatal infections.
How serious is the interaction between Cyclophosphamide and Deferiprone?
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 the combination if possible. If necessary, monitor the absolute neutrophil count more frequently and interrupt deferiprone if neutropenia develops.
What other medicines interact with Cyclophosphamide?
MediHelp also lists interactions of Cyclophosphamide with, for example, Adenovirus types 4 and 7 live, Belatacept, Bendamustine. The full list is on the Cyclophosphamide page.
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