Drug interactions
Fludarabine + Meningococcal group b vaccine
Severity: Moderate
Fludarabine and Meningococcal group b vaccine: 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
Meningococcal group B vaccine is a non-live vaccine, but patients on fludarabine have profound lymphopenia and weakened antibody production. Protection after vaccination may be reduced.
What this interaction means in plain words
Fludarabine and Meningococcal group b vaccine 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.
Why it happens
Fludarabine-induced suppression of lymphocyte function reduces vaccine immunogenicity.
What to do
Schedule vaccination before chemotherapy if possible or after immune recovery; if given during therapy, consider repeating or checking the response later.
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
Frequently asked questions
Can I take Fludarabine with Meningococcal group b vaccine?
MediHelp rates the interaction as moderate. Fludarabine and Meningococcal group b vaccine 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. Meningococcal group B vaccine is a non-live vaccine, but patients on fludarabine have profound lymphopenia and weakened antibody production. Protection after vaccination may be reduced.
How serious is the interaction between Fludarabine and Meningococcal group b vaccine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Schedule vaccination before chemotherapy if possible or after immune recovery; if given during therapy, consider repeating or checking the response later.
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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