Drug interactions
Ethotoin + Sorafenib
Severity: Moderate
Ethotoin and Sorafenib: 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
Ethotoin is a hydantoin anticonvulsant related to phenytoin, and such drugs may induce drug-metabolizing enzymes. Sorafenib exposure could fall, potentially reducing efficacy, though the induction potential of ethotoin is less well characterized than that of phenytoin.
What this interaction means in plain words
Ethotoin and Sorafenib 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
Possible induction of CYP3A4 and glucuronidation by ethotoin, increasing sorafenib clearance.
What to do
Consider a non-inducing anticonvulsant if clinically appropriate. Otherwise monitor for reduced tumor response.
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 Sorafenib
Frequently asked questions
Can I take Ethotoin with Sorafenib?
MediHelp rates the interaction as moderate. Ethotoin and Sorafenib 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. Ethotoin is a hydantoin anticonvulsant related to phenytoin, and such drugs may induce drug-metabolizing enzymes. Sorafenib exposure could fall, potentially reducing efficacy, though the induction potential of ethotoin is less well characterized than that of phenytoin.
How serious is the interaction between Ethotoin and Sorafenib?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Consider a non-inducing anticonvulsant if clinically appropriate. Otherwise monitor for reduced tumor response.
What other medicines interact with Sorafenib?
MediHelp also lists interactions of Sorafenib with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the Sorafenib page.
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