Drug interactions
Dacarbazine + Influenza a vaccine
Severity: Moderate
Dacarbazine and Influenza a 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
Cytotoxic chemotherapy can blunt antibody responses to the H5N1 influenza vaccine. Patients may therefore have less protection than expected after vaccination.
What this interaction means in plain words
Dacarbazine and Influenza a 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
Chemotherapy-related immunosuppression reduces vaccine immunogenicity.
What to do
Where possible vaccinate before starting chemotherapy or during periods of count recovery between cycles. Do not rely on vaccination alone for protection in exposed patients.
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 Dacarbazine
Frequently asked questions
Can I take Dacarbazine with Influenza a vaccine?
MediHelp rates the interaction as moderate. Dacarbazine and Influenza a 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. Cytotoxic chemotherapy can blunt antibody responses to the H5N1 influenza vaccine. Patients may therefore have less protection than expected after vaccination.
How serious is the interaction between Dacarbazine and Influenza a 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: Where possible vaccinate before starting chemotherapy or during periods of count recovery between cycles. Do not rely on vaccination alone for protection in exposed patients.
What other medicines interact with Dacarbazine?
MediHelp also lists interactions of Dacarbazine with, for example, Adenovirus types 4 and 7 live, Axicabtagene ciloleucel, Belatacept. The full list is on the Dacarbazine page.
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