Skip to content

Drug interactions

Omaveloxolone + Valproic acid

Severity: Minor

Omaveloxolone and Valproic acid: 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

Omaveloxolone may weakly induce CYP3A4, but valproate is cleared mainly by glucuronidation and mitochondrial beta-oxidation with only minor CYP involvement. A clinically meaningful drop in valproate levels is unlikely.

What this interaction means in plain words

Omaveloxolone and Valproic acid have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Omaveloxolone belongs to Central Nervous System; Valproic acid belongs to Central Nervous System.

Evidence level: Low

Why it happens

Weak CYP3A4 induction by omaveloxolone acting on a minor valproate pathway.

What to do

No routine adjustment is needed. Check valproate levels if seizure control or mood stability changes after starting omaveloxolone.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Omaveloxolone 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.

Frequently asked questions

Can I take Omaveloxolone with Valproic acid?

MediHelp rates the interaction as minor. Omaveloxolone and Valproic acid have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Omaveloxolone may weakly induce CYP3A4, but valproate is cleared mainly by glucuronidation and mitochondrial beta-oxidation with only minor CYP involvement. A clinically meaningful drop in valproate levels is unlikely.

How serious is the interaction between Omaveloxolone and Valproic acid?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine adjustment is needed. Check valproate levels if seizure control or mood stability changes after starting omaveloxolone.

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.

Browse A–Z · Drug interactions

Get the app Sign in