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Drug interactions

Armodafinil + Neratinib

Severity: Major

Armodafinil and Neratinib: major 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 neratinib exposure by inducing CYP3A4. Lower neratinib levels could reduce its efficacy in breast cancer treatment. Neratinib labeling advises against use with moderate or strong CYP3A4 inducers.

What this interaction means in plain words

Armodafinil and Neratinib can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Armodafinil belongs to Central Nervous System; Neratinib belongs to Oncology.

Evidence level: Moderate

Why it happens

CYP3A4 induction by armodafinil enhances the metabolism of neratinib, a CYP3A4 substrate.

What to do

Avoid the combination and use a non-inducing alternative to armodafinil. If it cannot be avoided, monitor for loss of tumor response.

What to ask your pharmacist

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

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 Neratinib?

MediHelp rates the interaction as major. Armodafinil and Neratinib can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Armodafinil may reduce neratinib exposure by inducing CYP3A4. Lower neratinib levels could reduce its efficacy in breast cancer treatment. Neratinib labeling advises against use with moderate or strong CYP3A4 inducers.

How serious is the interaction between Armodafinil and Neratinib?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination and use a non-inducing alternative to armodafinil. If it cannot be avoided, monitor for loss of tumor response.

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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