Drug interactions
Fludarabine + Pentostatin
Severity: Contraindicated
Fludarabine and Pentostatin: contraindicated 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
Combining these purine analogues has caused severe or fatal pulmonary toxicity in clinical use. The combination is contraindicated in labeling.
What this interaction means in plain words
Fludarabine and Pentostatin are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Fludarabine belongs to Oncology; Pentostatin belongs to Oncology.
Why it happens
The mechanism is not established, though additive purine analogue toxicity, possibly involving adenosine deaminase inhibition, is suspected.
What to do
Do not use together; choose a different regimen. Observe patients for respiratory symptoms if previously exposed.
What to ask your pharmacist
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
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Other interactions of Fludarabine
- Adenovirus types 4 and 7 live + Fludarabine Contraindicated
- Belatacept + Fludarabine Major
- Dengue vaccine + Fludarabine Major
- Etrasimod + Fludarabine Major
- Fingolimod + Fludarabine Major
- Fludarabine + Ofatumumab sc Major
Other interactions of Pentostatin
- Carmustine + Pentostatin Contraindicated
- Etoposide + Pentostatin Contraindicated
- Cyclophosphamide + Pentostatin Major
- Deferiprone + Pentostatin Major
- Fingolimod + Pentostatin Major
- Nelarabine + Pentostatin Major
Frequently asked questions
Can I take Fludarabine with Pentostatin?
MediHelp rates the interaction as contraindicated. Fludarabine and Pentostatin are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Combining these purine analogues has caused severe or fatal pulmonary toxicity in clinical use. The combination is contraindicated in labeling.
How serious is the interaction between Fludarabine and Pentostatin?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not use together; choose a different regimen. Observe patients for respiratory symptoms if previously exposed.
What other medicines interact with Fludarabine?
MediHelp also lists interactions of Fludarabine with, for example, Adenovirus types 4 and 7 live, Belatacept, Dengue vaccine. The full list is on the Fludarabine page.
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