Drug interactions
Dexamethasone + Trabectedin
Severity: Minor
Dexamethasone and Trabectedin: minor 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 trabectedin exposure by inducing CYP3A4, potentially lowering efficacy. Dexamethasone is however routinely given with trabectedin to reduce hepatotoxicity and nausea.
What this interaction means in plain words
Dexamethasone and Trabectedin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Dexamethasone belongs to Endocrine; Trabectedin belongs to Oncology.
Why it happens
Dexamethasone weakly induces CYP3A4, which metabolizes trabectedin.
What to do
Use dexamethasone premedication as per trabectedin labeling. Avoid additional prolonged strong CYP3A inducers.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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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 Trabectedin
Frequently asked questions
Can I take Dexamethasone with Trabectedin?
MediHelp rates the interaction as minor. Dexamethasone and Trabectedin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Dexamethasone may reduce trabectedin exposure by inducing CYP3A4, potentially lowering efficacy. Dexamethasone is however routinely given with trabectedin to reduce hepatotoxicity and nausea.
How serious is the interaction between Dexamethasone and Trabectedin?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use dexamethasone premedication as per trabectedin labeling. Avoid additional prolonged 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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