Drug interactions
Influenza virus vaccine trivalent adjuvanted + Thioguanine
Severity: Moderate
Influenza virus vaccine trivalent adjuvanted and Thioguanine: 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
Thioguanine suppresses bone marrow and immune function, so the antibody response to an inactivated influenza vaccine may be reduced. The vaccine is not unsafe, but protection may be inadequate.
What this interaction means in plain words
Influenza virus vaccine trivalent adjuvanted and Thioguanine 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
Immunosuppression from thioguanine reduces the immune response to vaccination.
What to do
Vaccination is still advisable, ideally before starting chemotherapy or during treatment-free periods. Do not rely on the vaccine alone and treat influenza early.
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 Thioguanine
Frequently asked questions
Can I take Influenza virus vaccine trivalent adjuvanted with Thioguanine?
MediHelp rates the interaction as moderate. Influenza virus vaccine trivalent adjuvanted and Thioguanine 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. Thioguanine suppresses bone marrow and immune function, so the antibody response to an inactivated influenza vaccine may be reduced. The vaccine is not unsafe, but protection may be inadequate.
How serious is the interaction between Influenza virus vaccine trivalent adjuvanted and Thioguanine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Vaccination is still advisable, ideally before starting chemotherapy or during treatment-free periods. Do not rely on the vaccine alone and treat influenza early.
What other medicines interact with Thioguanine?
MediHelp also lists interactions of Thioguanine with, for example, Adenovirus types 4 and 7 live, Axicabtagene ciloleucel, Belatacept. The full list is on the Thioguanine page.
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