Drug interactions
Docetaxel + Trastuzumab deruxtecan
Severity: Moderate
Docetaxel and Trastuzumab deruxtecan: 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
Both drugs cause myelosuppression, so combined use increases the risk of neutropenia and febrile neutropenia. Trastuzumab deruxtecan can also cause interstitial lung disease, which adds to the burden of therapy.
What this interaction means in plain words
Docetaxel and Trastuzumab deruxtecan 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.
Docetaxel belongs to Oncology; Trastuzumab deruxtecan belongs to Oncology.
Why it happens
Additive myelosuppressive effects of two cytotoxic agents.
What to do
Monitor complete blood counts regularly and hold or reduce doses for significant neutropenia; counsel patients to report fever or respiratory symptoms promptly.
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 Docetaxel
Other interactions of Trastuzumab deruxtecan
Frequently asked questions
Can I take Docetaxel with Trastuzumab deruxtecan?
MediHelp rates the interaction as moderate. Docetaxel and Trastuzumab deruxtecan 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. Both drugs cause myelosuppression, so combined use increases the risk of neutropenia and febrile neutropenia. Trastuzumab deruxtecan can also cause interstitial lung disease, which adds to the burden of therapy.
How serious is the interaction between Docetaxel and Trastuzumab deruxtecan?
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 complete blood counts regularly and hold or reduce doses for significant neutropenia; counsel patients to report fever or respiratory symptoms promptly.
What other medicines interact with Docetaxel?
MediHelp also lists interactions of Docetaxel with, for example, Adenovirus types 4 and 7 live, Atazanavir, Belatacept. The full list is on the Docetaxel page.
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