Drug interactions
Brexpiprazole + Ethotoin
Severity: Moderate
Brexpiprazole 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
Ethotoin, a hydantoin anticonvulsant, causes drowsiness and dizziness, which may add to brexpiprazole sedation. As a related hydantoin, it may also lower brexpiprazole levels through enzyme induction, though this is not well documented for ethotoin.
What this interaction means in plain words
Brexpiprazole 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
Additive CNS depression; possible CYP3A4 induction by hydantoins lowering brexpiprazole exposure.
What to do
Monitor for sedation and for reduced antipsychotic effect. Adjust brexpiprazole dose if response changes.
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 Brexpiprazole
Frequently asked questions
Can I take Brexpiprazole with Ethotoin?
MediHelp rates the interaction as moderate. Brexpiprazole 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. Ethotoin, a hydantoin anticonvulsant, causes drowsiness and dizziness, which may add to brexpiprazole sedation. As a related hydantoin, it may also lower brexpiprazole levels through enzyme induction, though this is not well documented for ethotoin.
How serious is the interaction between Brexpiprazole 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 for sedation and for reduced antipsychotic effect. Adjust brexpiprazole dose if response changes.
What other medicines interact with Brexpiprazole?
MediHelp also lists interactions of Brexpiprazole with, for example, Alfentanil, Amisulpride, Apalutamide. The full list is on the Brexpiprazole page.
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