Drug interactions
Dexamethasone + Ibrutinib
Severity: Moderate
Dexamethasone and Ibrutinib: 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
Dexamethasone may lower ibrutinib exposure, with potential loss of efficacy. The large reductions seen with strong inducers are not expected with dexamethasone, which is a weaker inducer and is commonly combined with ibrutinib in practice.
What this interaction means in plain words
Dexamethasone and Ibrutinib 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.
Dexamethasone belongs to Endocrine; Ibrutinib belongs to Oncology.
Why it happens
Dexamethasone induces CYP3A4, increasing the first-pass and systemic metabolism of ibrutinib.
What to do
Monitor for reduced disease control during prolonged dexamethasone therapy. Avoid strong CYP3A inducers instead.
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 Dexamethasone
- Bcg vaccine live + Dexamethasone Contraindicated
- Dexamethasone + Mifepristone Contraindicated
- Dexamethasone + Rilpivirine Contraindicated
- Dexamethasone + Smallpox vaccine live Contraindicated
- Dexamethasone + Varicella virus vaccine live Contraindicated
- Dexamethasone + Yellow fever vaccine Contraindicated
Other interactions of Ibrutinib
- Abciximab + Ibrutinib Major
- Acetylsalicylic acid + Ibrutinib Major
- Alteplase + Ibrutinib Major
- Amobarbital + Ibrutinib Major
- Apalutamide + Ibrutinib Major
- Apixaban + Ibrutinib Major
Frequently asked questions
Can I take Dexamethasone with Ibrutinib?
MediHelp rates the interaction as moderate. Dexamethasone and Ibrutinib 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. Dexamethasone may lower ibrutinib exposure, with potential loss of efficacy. The large reductions seen with strong inducers are not expected with dexamethasone, which is a weaker inducer and is commonly combined with ibrutinib in practice.
How serious is the interaction between Dexamethasone and Ibrutinib?
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 disease control during prolonged dexamethasone therapy. Avoid strong CYP3A inducers instead.
What other medicines interact with Dexamethasone?
MediHelp also lists interactions of Dexamethasone with, for example, Bcg vaccine live, Mifepristone, Rilpivirine. The full list is on the Dexamethasone page.
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