Drug interactions
Ifosfamide + Japanese encephalitis virus vaccine
Severity: Moderate
Ifosfamide and Japanese encephalitis virus 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
Ifosfamide immunosuppression may reduce the immune response to Japanese encephalitis vaccine. This matters for patients travelling to endemic areas.
What this interaction means in plain words
Ifosfamide and Japanese encephalitis virus 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
Cytotoxic immunosuppression impairs the immune response to vaccination.
What to do
Complete vaccination at least 2 weeks before chemotherapy where possible, and consider checking antibody titres. Revaccinate about 3 months after therapy if given during treatment.
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 Ifosfamide
- Adenovirus types 4 and 7 live + Ifosfamide Contraindicated
- Ifosfamide + Measles mumps and rubella vaccine Contraindicated
- Ifosfamide + Measles mumps and rubella vaccine live Contraindicated
- Ifosfamide + Measles mumps rubella and varicella vaccine live Contraindicated
- Ifosfamide + Measles vaccine Contraindicated
- Ifosfamide + Rotavirus oral vaccine live Contraindicated
Frequently asked questions
Can I take Ifosfamide with Japanese encephalitis virus vaccine?
MediHelp rates the interaction as moderate. Ifosfamide and Japanese encephalitis virus 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. Ifosfamide immunosuppression may reduce the immune response to Japanese encephalitis vaccine. This matters for patients travelling to endemic areas.
How serious is the interaction between Ifosfamide and Japanese encephalitis virus 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: Complete vaccination at least 2 weeks before chemotherapy where possible, and consider checking antibody titres. Revaccinate about 3 months after therapy if given during treatment.
What other medicines interact with Ifosfamide?
MediHelp also lists interactions of Ifosfamide with, for example, Adenovirus types 4 and 7 live, Measles mumps and rubella vaccine, Measles mumps and rubella vaccine live. The full list is on the Ifosfamide page.
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