Drug interactions
Lemborexant + Topiramate
Severity: Moderate
Lemborexant 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 can cause somnolence and impaired psychomotor performance. Taken together they may produce additive sedation, dizziness and next-day impairment, raising the risk of falls and accidents.
What this interaction means in plain words
Lemborexant 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.
Lemborexant belongs to Central Nervous System; Topiramate belongs to Central Nervous System.
Why it happens
Additive central nervous system depression from orexin receptor antagonism plus topiramate's CNS effects.
What to do
Start lemborexant at the lowest dose and counsel the patient about next-day drowsiness and driving. Reduce the lemborexant dose or reassess therapy if excessive sedation occurs.
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
Other interactions of Lemborexant
Frequently asked questions
Can I take Lemborexant with Topiramate?
MediHelp rates the interaction as moderate. Lemborexant 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 can cause somnolence and impaired psychomotor performance. Taken together they may produce additive sedation, dizziness and next-day impairment, raising the risk of falls and accidents.
How serious is the interaction between Lemborexant 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: Start lemborexant at the lowest dose and counsel the patient about next-day drowsiness and driving. Reduce the lemborexant dose or reassess therapy if excessive sedation occurs.
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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