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Drug interactions

Asenapine transdermal + Zonisamide

Severity: Moderate

Asenapine transdermal 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

Both drugs can cause somnolence and dizziness, so combined use may increase sedation and impair alertness.

What this interaction means in plain words

Asenapine transdermal 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.

Evidence level: Low

Why it happens

Additive central nervous system depression.

What to do

Monitor for excessive drowsiness and falls, especially at initiation. Advise caution with driving and alcohol.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Asenapine transdermal with Zonisamide?

MediHelp rates the interaction as moderate. Asenapine transdermal 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. Both drugs can cause somnolence and dizziness, so combined use may increase sedation and impair alertness.

How serious is the interaction between Asenapine transdermal 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: Monitor for excessive drowsiness and falls, especially at initiation. Advise caution with driving and alcohol.

What other medicines interact with Zonisamide?

MediHelp also lists interactions of Zonisamide with, for example, Zuranolone, Acetazolamide, Amisulpride. The full list is on the Zonisamide page.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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