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Drug interactions

Asenapine transdermal + Topiramate

Severity: Moderate

Asenapine transdermal and Topiramate: 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

Topiramate causes somnolence and cognitive slowing, and asenapine is also sedating. Combined use can increase drowsiness and impair concentration.

What this interaction means in plain words

Asenapine transdermal and Topiramate 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: Moderate

Why it happens

Additive CNS depressant effects (pharmacodynamic).

What to do

Monitor for sedation and cognitive impairment, especially during dose changes. Advise patients to avoid driving until the response is known.

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 Topiramate?

MediHelp rates the interaction as moderate. Asenapine transdermal and Topiramate 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. Topiramate causes somnolence and cognitive slowing, and asenapine is also sedating. Combined use can increase drowsiness and impair concentration.

How serious is the interaction between Asenapine transdermal and Topiramate?

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 cognitive impairment, especially during dose changes. Advise patients to avoid driving until the response is known.

What other medicines interact with Topiramate?

MediHelp also lists interactions of Topiramate with, for example, Benzhydrocodone / acetaminophen, Buprenorphine long-acting, Buprenorphine subdermal implant. The full list is on the Topiramate page.

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

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