Drug interactions
Denosumab + Fludarabine
Severity: Moderate
Denosumab and Fludarabine: 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
Denosumab labeling warns of serious infections in patients with impaired immunity. Fludarabine causes profound lymphopenia and myelosuppression, which adds to infection risk.
What this interaction means in plain words
Denosumab and Fludarabine 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.
Denosumab belongs to Oncology; Fludarabine belongs to Oncology.
Why it happens
Additive immunosuppression: denosumab modulates RANKL signalling and fludarabine depletes lymphocytes and suppresses bone marrow.
What to do
Monitor blood and lymphocyte counts and watch for infection. Treat infections promptly and reassess the need for denosumab if serious infections develop.
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?
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Other interactions of Denosumab
- Abatacept + Denosumab Moderate
- Adalimumab + Denosumab Moderate
- Alefacept + Denosumab Moderate
- Alemtuzumab + Denosumab Moderate
- Anakinra + Denosumab Moderate
- Azacitidine + Denosumab Moderate
Other interactions of Fludarabine
- Adenovirus types 4 and 7 live + Fludarabine Contraindicated
- Fludarabine + Pentostatin Contraindicated
- Belatacept + Fludarabine Major
- Dengue vaccine + Fludarabine Major
- Etrasimod + Fludarabine Major
- Fingolimod + Fludarabine Major
Frequently asked questions
Can I take Denosumab with Fludarabine?
MediHelp rates the interaction as moderate. Denosumab and Fludarabine 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. Denosumab labeling warns of serious infections in patients with impaired immunity. Fludarabine causes profound lymphopenia and myelosuppression, which adds to infection risk.
How serious is the interaction between Denosumab and Fludarabine?
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 and lymphocyte counts and watch for infection. Treat infections promptly and reassess the need for denosumab if serious infections develop.
What other medicines interact with Denosumab?
MediHelp also lists interactions of Denosumab with, for example, Abatacept, Adalimumab, Alefacept. The full list is on the Denosumab page.
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