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Drug interactions

Quazepam + Topiramate

Severity: Moderate

Quazepam 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

Quazepam is a long-acting benzodiazepine hypnotic, and topiramate also causes sedation and cognitive slowing. Together they may increase drowsiness, impaired coordination and next-day impairment, particularly in older patients.

What this interaction means in plain words

Quazepam 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 depression via GABAergic enhancement by both drugs.

What to do

Use the lowest effective quazepam dose and monitor for daytime sedation, falls and cognitive effects. Avoid alcohol and counsel on driving.

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 Quazepam with Topiramate?

MediHelp rates the interaction as moderate. Quazepam 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. Quazepam is a long-acting benzodiazepine hypnotic, and topiramate also causes sedation and cognitive slowing. Together they may increase drowsiness, impaired coordination and next-day impairment, particularly in older patients.

How serious is the interaction between Quazepam 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: Use the lowest effective quazepam dose and monitor for daytime sedation, falls and cognitive effects. Avoid alcohol and counsel on driving.

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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