Drug interactions
Fludarabine + Hydroxycarbamide
Severity: Moderate
Fludarabine and Hydroxycarbamide: 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 suppress bone marrow function, so combined use can deepen and prolong neutropenia, anemia and thrombocytopenia. This raises the risk of infection and bleeding.
What this interaction means in plain words
Fludarabine and Hydroxycarbamide 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.
Fludarabine belongs to Oncology; Hydroxycarbamide belongs to Oncology.
Why it happens
Additive myelosuppression from a purine analog (DNA synthesis inhibition) and ribonucleotide reductase inhibition.
What to do
Monitor complete blood counts frequently and adjust the doses of one or both drugs based on cytopenias. Provide supportive care and infection prophylaxis as appropriate.
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 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
Other interactions of Hydroxycarbamide
- Didanosine + Hydroxycarbamide Contraindicated
- Hydroxycarbamide + Stavudine Contraindicated
- Adenovirus types 4 and 7 live + Hydroxycarbamide Major
- Axicabtagene ciloleucel + Hydroxycarbamide Major
- Bcg intravesical live + Hydroxycarbamide Major
- Bcg vaccine live + Hydroxycarbamide Major
Frequently asked questions
Can I take Fludarabine with Hydroxycarbamide?
MediHelp rates the interaction as moderate. Fludarabine and Hydroxycarbamide 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 suppress bone marrow function, so combined use can deepen and prolong neutropenia, anemia and thrombocytopenia. This raises the risk of infection and bleeding.
How serious is the interaction between Fludarabine and Hydroxycarbamide?
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 complete blood counts frequently and adjust the doses of one or both drugs based on cytopenias. Provide supportive care and infection prophylaxis as appropriate.
What other medicines interact with Fludarabine?
MediHelp also lists interactions of Fludarabine with, for example, Adenovirus types 4 and 7 live, Pentostatin, Belatacept. The full list is on the Fludarabine page.
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