Drug interactions
Ropeginterferon alfa 2b + Valproic acid
Severity: Moderate
Ropeginterferon alfa 2b and Valproic acid: 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
Interferons can suppress CYP450 activity, but valproate depends little on CYP metabolism, so pharmacokinetic effects are modest. Interferons can cause hepatotoxicity, neuropsychiatric effects and cytopenias, which overlap with valproate toxicities.
What this interaction means in plain words
Ropeginterferon alfa 2b and Valproic acid 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
Cytokine-mediated CYP suppression (minor for valproate) plus overlapping hepatic and hematologic toxicity.
What to do
Monitor liver enzymes, blood counts and valproate levels during therapy. Watch for mood changes and neurologic adverse effects.
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 Valproic acid, 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 Valproic acid
- Ertapenem + Valproic acid Contraindicated
- Imipenem / cilastatin / relebactam + Valproic acid Contraindicated
- Imipenem / cilastatin + Valproic acid Contraindicated
- Meropenem / vaborbactam + Valproic acid Contraindicated
- Meropenem + Valproic acid Contraindicated
- Calcium / magnesium / potassium / sodium oxybates + Valproic acid Major
Frequently asked questions
Can I take Ropeginterferon alfa 2b with Valproic acid?
MediHelp rates the interaction as moderate. Ropeginterferon alfa 2b and Valproic acid 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. Interferons can suppress CYP450 activity, but valproate depends little on CYP metabolism, so pharmacokinetic effects are modest. Interferons can cause hepatotoxicity, neuropsychiatric effects and cytopenias, which overlap with valproate toxicities.
How serious is the interaction between Ropeginterferon alfa 2b and Valproic acid?
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 liver enzymes, blood counts and valproate levels during therapy. Watch for mood changes and neurologic adverse effects.
What other medicines interact with Valproic acid?
MediHelp also lists interactions of Valproic acid with, for example, Ertapenem, Imipenem / cilastatin / relebactam, Imipenem / cilastatin. The full list is on the Valproic acid 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.
