Drug interactions
Brexpiprazole + Zonisamide
Severity: Moderate
Brexpiprazole and Zonisamide: 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
Zonisamide frequently causes somnolence, dizziness and cognitive effects, and brexpiprazole adds to sedation. Together they may impair alertness and coordination.
What this interaction means in plain words
Brexpiprazole and Zonisamide 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.
Brexpiprazole belongs to Central Nervous System; Zonisamide belongs to Central Nervous System.
Why it happens
Additive CNS depressant effects through different pharmacodynamic mechanisms.
What to do
Titrate slowly and monitor for sedation and cognitive impairment. Advise caution when driving or operating machinery.
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
Other interactions of Zonisamide
- Zonisamide + Zuranolone Major
- Acetazolamide + Zonisamide Moderate
- Amisulpride + Zonisamide Moderate
- Amobarbital + Zonisamide Moderate
- Apalutamide + Zonisamide Moderate
- Asenapine transdermal + Zonisamide Moderate
Frequently asked questions
Can I take Brexpiprazole with Zonisamide?
MediHelp rates the interaction as moderate. Brexpiprazole and Zonisamide 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. Zonisamide frequently causes somnolence, dizziness and cognitive effects, and brexpiprazole adds to sedation. Together they may impair alertness and coordination.
How serious is the interaction between Brexpiprazole and Zonisamide?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Titrate slowly and monitor for sedation and cognitive impairment. Advise caution when driving or operating machinery.
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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