Drug interactions
Mercaptopurine + Zoster vaccine recombinant
Severity: Minor
Mercaptopurine and Zoster vaccine recombinant: minor 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
Mercaptopurine may blunt the immune response to the recombinant zoster vaccine. The vaccine is non-live and is recommended for many immunosuppressed adults, so the main concern is reduced effectiveness.
What this interaction means in plain words
Mercaptopurine and Zoster vaccine recombinant have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Immunosuppression reduces lymphocyte activation and antibody and T-cell responses to the vaccine.
What to do
Vaccinate according to guidelines, ideally before intensifying immunosuppression when possible. Do not withhold the vaccine because of mercaptopurine.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Mercaptopurine
- Adenovirus types 4 and 7 live + Mercaptopurine Contraindicated
- Azathioprine + Mercaptopurine Contraindicated
- Bcg vaccine live + Mercaptopurine Contraindicated
- Febuxostat + Mercaptopurine Contraindicated
- Influenza virus vaccine quadrivalent intranasal + Mercaptopurine Contraindicated
- Mercaptopurine + Smallpox vaccine live Contraindicated
Frequently asked questions
Can I take Mercaptopurine with Zoster vaccine recombinant?
MediHelp rates the interaction as minor. Mercaptopurine and Zoster vaccine recombinant have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Mercaptopurine may blunt the immune response to the recombinant zoster vaccine. The vaccine is non-live and is recommended for many immunosuppressed adults, so the main concern is reduced effectiveness.
How serious is the interaction between Mercaptopurine and Zoster vaccine recombinant?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Vaccinate according to guidelines, ideally before intensifying immunosuppression when possible. Do not withhold the vaccine because of mercaptopurine.
What other medicines interact with Mercaptopurine?
MediHelp also lists interactions of Mercaptopurine with, for example, Adenovirus types 4 and 7 live, Azathioprine, Bcg vaccine live. The full list is on the Mercaptopurine page.
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