Drug interactions
Ropeginterferon alfa 2b + Trastuzumab
Severity: Moderate
Ropeginterferon alfa 2b and Trastuzumab: 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
Ropeginterferon alfa-2b can cause neutropenia, thrombocytopenia and anemia. Trastuzumab has modest myelosuppressive potential and may add to this, particularly with chemotherapy. The combination could worsen cytopenias.
What this interaction means in plain words
Ropeginterferon alfa 2b and Trastuzumab 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
Additive bone marrow suppression.
What to do
Monitor complete blood counts regularly during combined use. Reduce or hold ropeginterferon if significant cytopenias develop.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Ropeginterferon alfa 2b and Trastuzumab, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Trastuzumab
Frequently asked questions
Can I take Ropeginterferon alfa 2b with Trastuzumab?
MediHelp rates the interaction as moderate. Ropeginterferon alfa 2b and Trastuzumab 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. Ropeginterferon alfa-2b can cause neutropenia, thrombocytopenia and anemia. Trastuzumab has modest myelosuppressive potential and may add to this, particularly with chemotherapy. The combination could worsen cytopenias.
How serious is the interaction between Ropeginterferon alfa 2b and Trastuzumab?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor complete blood counts regularly during combined use. Reduce or hold ropeginterferon if significant cytopenias develop.
What other medicines interact with Trastuzumab?
MediHelp also lists interactions of Trastuzumab with, for example, Daunorubicin, Doxorubicin liposomal, Doxorubicin. The full list is on the Trastuzumab page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
