Drug interactions
Armodafinil + Vonoprazan
Severity: Moderate
Armodafinil and Vonoprazan: 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
Armodafinil may reduce vonoprazan exposure through CYP3A4 induction. This may diminish acid suppression and treatment efficacy. The effect is predicted from the mechanism and is greater with strong inducers.
What this interaction means in plain words
Armodafinil and Vonoprazan 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.
Armodafinil belongs to Central Nervous System; Vonoprazan belongs to Gastrointestinal Tract.
Why it happens
CYP3A4 induction by armodafinil increases the metabolism of vonoprazan, a partial CYP3A4 substrate.
What to do
Monitor for reduced acid suppression or symptom control. Consider an alternative acid suppressant if the response is inadequate.
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?
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Other interactions of Armodafinil
Other interactions of Vonoprazan
- Amobarbital + Vonoprazan Major
- Apalutamide + Vonoprazan Major
- Atazanavir + Vonoprazan Major
- Carbamazepine + Vonoprazan Major
- Erlotinib + Vonoprazan Major
- Phenytoin + Vonoprazan Major
Frequently asked questions
Can I take Armodafinil with Vonoprazan?
MediHelp rates the interaction as moderate. Armodafinil and Vonoprazan 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. Armodafinil may reduce vonoprazan exposure through CYP3A4 induction. This may diminish acid suppression and treatment efficacy. The effect is predicted from the mechanism and is greater with strong inducers.
How serious is the interaction between Armodafinil and Vonoprazan?
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 for reduced acid suppression or symptom control. Consider an alternative acid suppressant if the response is inadequate.
What other medicines interact with Armodafinil?
MediHelp also lists interactions of Armodafinil with, for example, Avapritinib, Cyclosporine, Elacestrant. The full list is on the Armodafinil page.
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