Drug interactions
Bleomycin + Ethotoin
Severity: Moderate
Bleomycin and Ethotoin: 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
Cytotoxic chemotherapy regimens that include bleomycin have been associated with reduced phenytoin-type anticonvulsant levels, risking loss of seizure control. Data specific to ethotoin are lacking and the effect is inferred from related hydantoins.
What this interaction means in plain words
Bleomycin and Ethotoin 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
Mechanism is not well established; altered absorption or metabolism of hydantoins during chemotherapy has been proposed.
What to do
Monitor seizure control and ethotoin response, and adjust dose as needed. Be alert to toxicity when chemotherapy stops.
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 Bleomycin
- Adenovirus types 4 and 7 live + Bleomycin Contraindicated
- Bleomycin + Brentuximab Contraindicated
- Bleomycin + Brentuximab vedotin Contraindicated
- Bleomycin + Dengue vaccine Major
- Bleomycin + Trastuzumab deruxtecan Major
- Bleomycin + Cholera vaccine Moderate
Frequently asked questions
Can I take Bleomycin with Ethotoin?
MediHelp rates the interaction as moderate. Bleomycin and Ethotoin 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. Cytotoxic chemotherapy regimens that include bleomycin have been associated with reduced phenytoin-type anticonvulsant levels, risking loss of seizure control. Data specific to ethotoin are lacking and the effect is inferred from related hydantoins.
How serious is the interaction between Bleomycin and Ethotoin?
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 seizure control and ethotoin response, and adjust dose as needed. Be alert to toxicity when chemotherapy stops.
What other medicines interact with Bleomycin?
MediHelp also lists interactions of Bleomycin with, for example, Adenovirus types 4 and 7 live, Brentuximab, Brentuximab vedotin. The full list is on the Bleomycin page.
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