Drug interactions
Clonazepam + Topiramate
Severity: Moderate
Clonazepam 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
Both drugs cause somnolence and cognitive slowing, so combined use increases sedation and psychomotor impairment. Topiramate may also cause confusion and word-finding difficulty that may add to benzodiazepine effects.
What this interaction means in plain words
Clonazepam 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.
Clonazepam belongs to Central Nervous System; Topiramate belongs to Central Nervous System.
Why it happens
Additive central nervous system depressant effects.
What to do
Titrate slowly and monitor for excessive sedation and cognitive effects. Warn patients about driving and 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 Clonazepam
- Calcium / magnesium / potassium / sodium oxybates + Clonazepam Contraindicated
- Clonazepam + Sodium oxybate Contraindicated
- Alfentanil + Clonazepam Major
- Alprazolam + Clonazepam Major
- Amobarbital + Clonazepam Major
- Belladonna and opium + Clonazepam Major
Other interactions of Topiramate
Frequently asked questions
Can I take Clonazepam with Topiramate?
MediHelp rates the interaction as moderate. Clonazepam 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. Both drugs cause somnolence and cognitive slowing, so combined use increases sedation and psychomotor impairment. Topiramate may also cause confusion and word-finding difficulty that may add to benzodiazepine effects.
How serious is the interaction between Clonazepam 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: Titrate slowly and monitor for excessive sedation and cognitive effects. Warn patients about driving and operating machinery.
What other medicines interact with Clonazepam?
MediHelp also lists interactions of Clonazepam with, for example, Calcium / magnesium / potassium / sodium oxybates, Sodium oxybate, Alfentanil. The full list is on the Clonazepam page.
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