Drug interactions
Dactinomycin + Erythromycin stearate
Severity: Moderate
Dactinomycin and Erythromycin stearate: 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
Erythromycin inhibits P-glycoprotein and may increase dactinomycin exposure, potentially intensifying its marrow, mucosal and hepatic toxicity.
What this interaction means in plain words
Dactinomycin and Erythromycin stearate 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
Inhibition of P-glycoprotein efflux of dactinomycin.
What to do
Monitor blood counts, liver tests and mucositis, and consider a non-interacting antibiotic if appropriate.
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 Dactinomycin
- Adenovirus types 4 and 7 live + Dactinomycin Contraindicated
- Belatacept + Dactinomycin Major
- Dactinomycin + Dengue vaccine Major
- Dactinomycin + Etrasimod Major
- Dactinomycin + Fingolimod Major
- Dactinomycin + Palifermin Major
Frequently asked questions
Can I take Dactinomycin with Erythromycin stearate?
MediHelp rates the interaction as moderate. Dactinomycin and Erythromycin stearate 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. Erythromycin inhibits P-glycoprotein and may increase dactinomycin exposure, potentially intensifying its marrow, mucosal and hepatic toxicity.
How serious is the interaction between Dactinomycin and Erythromycin stearate?
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 blood counts, liver tests and mucositis, and consider a non-interacting antibiotic if appropriate.
What other medicines interact with Dactinomycin?
MediHelp also lists interactions of Dactinomycin with, for example, Adenovirus types 4 and 7 live, Belatacept, Dengue vaccine. The full list is on the Dactinomycin page.
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