Skip to content

Drug interactions

Buprenorphine transdermal + Zonisamide

Severity: Moderate

Buprenorphine 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 depress the central nervous system, so using them together can increase drowsiness, impaired psychomotor performance and, less commonly, respiratory depression. Sedation may persist because the patch delivers drug continuously.

What this interaction means in plain words

Buprenorphine 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: Moderate

Why it happens

Additive central nervous system depression from the opioid and the sedating antiseizure drug.

What to do

Monitor for excessive sedation and respiratory depression, especially during titration. Use the lowest effective doses and counsel on avoiding 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.

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Buprenorphine transdermal and Zonisamide, the additional notes, the evidence detail and the whole-prescription interaction checker.

  • Full clinical management advice
  • Additional notes
  • Evidence detail
  • Interaction checker for a whole prescription

Try Pro+ free for 7 days on the web. No card needed.

Frequently asked questions

Can I take Buprenorphine transdermal with Zonisamide?

MediHelp rates the interaction as moderate. Buprenorphine 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 depress the central nervous system, so using them together can increase drowsiness, impaired psychomotor performance and, less commonly, respiratory depression. Sedation may persist because the patch delivers drug continuously.

How serious is the interaction between Buprenorphine 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 sedation and respiratory depression, especially during titration. Use the lowest effective doses and counsel on avoiding 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.

Browse A–Z · Drug interactions

Get the app Sign in