Drug interactions
Copanlisib + Dexamethasone
Severity: Moderate
Copanlisib and Dexamethasone: 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 reduce copanlisib exposure via CYP3A4 induction, possibly lowering efficacy. The labeled concern relates to strong inducers, so the effect with dexamethasone is likely smaller.
What this interaction means in plain words
Copanlisib and Dexamethasone 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.
Why it happens
Dexamethasone induces CYP3A4, increasing copanlisib metabolism.
What to do
Monitor treatment response when dexamethasone is needed and avoid strong CYP3A inducers.
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
Frequently asked questions
Can I take Copanlisib with Dexamethasone?
MediHelp rates the interaction as moderate. Copanlisib and Dexamethasone 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 reduce copanlisib exposure via CYP3A4 induction, possibly lowering efficacy. The labeled concern relates to strong inducers, so the effect with dexamethasone is likely smaller.
How serious is the interaction between Copanlisib and Dexamethasone?
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 treatment response when dexamethasone is needed and avoid strong CYP3A inducers.
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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