Drug interactions
Mercaptopurine + Ropeginterferon alfa 2b
Severity: Major
Mercaptopurine and Ropeginterferon alfa 2b: major 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
Both drugs suppress bone marrow function, so the combination can cause additive leukopenia, anemia and thrombocytopenia. This raises the risk of infection and bleeding.
What this interaction means in plain words
Mercaptopurine and Ropeginterferon alfa 2b can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Why it happens
Additive pharmacodynamic myelosuppression from the antimetabolite and the interferon.
What to do
Avoid the combination where possible. If used together, monitor complete blood counts closely and reduce doses or interrupt therapy for significant cytopenias.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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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 Ropeginterferon alfa 2b?
MediHelp rates the interaction as major. Mercaptopurine and Ropeginterferon alfa 2b can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Both drugs suppress bone marrow function, so the combination can cause additive leukopenia, anemia and thrombocytopenia. This raises the risk of infection and bleeding.
How serious is the interaction between Mercaptopurine and Ropeginterferon alfa 2b?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination where possible. If used together, monitor complete blood counts closely and reduce doses or interrupt therapy for significant cytopenias.
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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