Drug interactions
Dexamethasone + Duvelisib
Severity: Moderate
Dexamethasone and Duvelisib: 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
Duvelisib inhibits CYP3A4 and may increase dexamethasone exposure. This may heighten corticosteroid adverse effects such as hyperglycemia, infection risk and mood disturbance.
What this interaction means in plain words
Dexamethasone and Duvelisib 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; Duvelisib belongs to Oncology.
Why it happens
Duvelisib inhibits CYP3A4, reducing dexamethasone clearance.
What to do
Monitor for corticosteroid adverse effects, including glucose, and reduce the dexamethasone dose if they occur. Be aware of additive infection risk.
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 Duvelisib
- Duvelisib + Ergotamine Contraindicated
- Alfuzosin + Duvelisib Major
- Apalutamide + Duvelisib Major
- Avanafil + Duvelisib Major
- Carbamazepine + Duvelisib Major
- Chloramphenicol + Duvelisib Major
Frequently asked questions
Can I take Dexamethasone with Duvelisib?
MediHelp rates the interaction as moderate. Dexamethasone and Duvelisib 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. Duvelisib inhibits CYP3A4 and may increase dexamethasone exposure. This may heighten corticosteroid adverse effects such as hyperglycemia, infection risk and mood disturbance.
How serious is the interaction between Dexamethasone and Duvelisib?
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 corticosteroid adverse effects, including glucose, and reduce the dexamethasone dose if they occur. Be aware of additive infection risk.
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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