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Drug interactions

Armodafinil + Oxcarbazepine

Severity: Minor

Armodafinil and Oxcarbazepine: 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

Oxcarbazepine is a weak CYP3A4 inducer and may lower armodafinil concentrations, which are largely cleared through CYP3A4-mediated pathways. This could reduce wakefulness-promoting effect in some patients.

What this interaction means in plain words

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

Armodafinil belongs to Central Nervous System; Oxcarbazepine belongs to Central Nervous System.

Evidence level: Low

Why it happens

Oxcarbazepine induces CYP3A4 and may enhance armodafinil metabolism.

What to do

Monitor for reduced alertness benefit when oxcarbazepine is added. Increase the armodafinil dose only if clinically needed.

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.

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Frequently asked questions

Can I take Armodafinil with Oxcarbazepine?

MediHelp rates the interaction as minor. Armodafinil and Oxcarbazepine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Oxcarbazepine is a weak CYP3A4 inducer and may lower armodafinil concentrations, which are largely cleared through CYP3A4-mediated pathways. This could reduce wakefulness-promoting effect in some patients.

How serious is the interaction between Armodafinil and Oxcarbazepine?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for reduced alertness benefit when oxcarbazepine is added. Increase the armodafinil dose only if clinically needed.

What other medicines interact with Armodafinil?

MediHelp also lists interactions of Armodafinil with, for example, Avapritinib, Elacestrant, Elbasvir / grazoprevir. The full list is on the Armodafinil page.

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