Drug interactions
Bendamustine + Cyclophosphamide
Severity: Major
Bendamustine and Cyclophosphamide: 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
Both are alkylating agents that suppress bone marrow function. Combined use increases the risk of neutropenia, thrombocytopenia, anemia and infection.
What this interaction means in plain words
Bendamustine and Cyclophosphamide 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.
Bendamustine belongs to Oncology; Cyclophosphamide belongs to Oncology.
Why it happens
Additive myelosuppression from two DNA-alkylating cytotoxic agents.
What to do
Monitor complete blood counts closely and reduce doses or delay cycles as needed. Provide supportive care such as growth factors when indicated.
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 Bendamustine
Frequently asked questions
Can I take Bendamustine with Cyclophosphamide?
MediHelp rates the interaction as major. Bendamustine and Cyclophosphamide 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 are alkylating agents that suppress bone marrow function. Combined use increases the risk of neutropenia, thrombocytopenia, anemia and infection.
How serious is the interaction between Bendamustine and Cyclophosphamide?
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 complete blood counts closely and reduce doses or delay cycles as needed. Provide supportive care such as growth factors when indicated.
What other medicines interact with Cyclophosphamide?
MediHelp also lists interactions of Cyclophosphamide with, for example, Adenovirus types 4 and 7 live, Belatacept, Busulfan. The full list is on the Cyclophosphamide page.
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