Drug interactions
Armodafinil + Pirtobrutinib
Severity: Major
Armodafinil and Pirtobrutinib: 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 pirtobrutinib exposure by inducing CYP3A4, potentially reducing efficacy in B-cell malignancies. Labeling advises avoiding moderate CYP3A inducers or increasing the pirtobrutinib dose if unavoidable.
What this interaction means in plain words
Armodafinil and Pirtobrutinib 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; Pirtobrutinib belongs to Oncology.
Why it happens
CYP3A4 induction by armodafinil increases the clearance of pirtobrutinib.
What to do
Avoid concomitant use where possible. If it is unavoidable, increase the pirtobrutinib dose according to labeling and monitor the 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?
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Other interactions of Armodafinil
Other interactions of Pirtobrutinib
Frequently asked questions
Can I take Armodafinil with Pirtobrutinib?
MediHelp rates the interaction as major. Armodafinil and Pirtobrutinib 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 pirtobrutinib exposure by inducing CYP3A4, potentially reducing efficacy in B-cell malignancies. Labeling advises avoiding moderate CYP3A inducers or increasing the pirtobrutinib dose if unavoidable.
How serious is the interaction between Armodafinil and Pirtobrutinib?
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 concomitant use where possible. If it is unavoidable, increase the pirtobrutinib dose according to labeling and monitor the 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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