Drug interactions
Influenza virus vaccine adjuvanted + Thioguanine
Severity: Moderate
Influenza virus vaccine 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
The adjuvanted H5N1 vaccine is inactivated, but thioguanine-induced immunosuppression may lessen the antibody response. The patient may be less protected than expected.
What this interaction means in plain words
Influenza virus vaccine 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
Cytotoxic antimetabolite-induced immunosuppression reduces the immune response to vaccination.
What to do
Vaccinate before treatment or when immune function has recovered if possible; if given during therapy, consider checking the response.
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 adjuvanted with Thioguanine?
MediHelp rates the interaction as moderate. Influenza virus vaccine 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. The adjuvanted H5N1 vaccine is inactivated, but thioguanine-induced immunosuppression may lessen the antibody response. The patient may be less protected than expected.
How serious is the interaction between Influenza virus vaccine 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: Vaccinate before treatment or when immune function has recovered if possible; if given during therapy, consider checking the response.
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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