Drug interactions
Topiramate + Trifluoperazine
Severity: Moderate
Topiramate and Trifluoperazine: 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
Trifluoperazine is a relatively less sedating antipsychotic but still adds to topiramate's sedative and cognitive effects. Antipsychotics may also lower the seizure threshold, which can counteract anticonvulsant control.
What this interaction means in plain words
Topiramate and Trifluoperazine 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.
Why it happens
Additive CNS depression; antipsychotic reduction of seizure threshold.
What to do
Monitor for drowsiness, confusion and any change in seizure frequency. Adjust doses gradually.
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 Topiramate
Frequently asked questions
Can I take Topiramate with Trifluoperazine?
MediHelp rates the interaction as moderate. Topiramate and Trifluoperazine 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. Trifluoperazine is a relatively less sedating antipsychotic but still adds to topiramate's sedative and cognitive effects. Antipsychotics may also lower the seizure threshold, which can counteract anticonvulsant control.
How serious is the interaction between Topiramate and Trifluoperazine?
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 drowsiness, confusion and any change in seizure frequency. Adjust doses gradually.
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.
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