Drug interactions
Lamotrigine + Lemborexant
Severity: Moderate
Lamotrigine and Lemborexant: 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 agents can cause somnolence and dizziness, and combining them may produce additive CNS depression. Next-day drowsiness and impaired psychomotor performance are the main concerns.
What this interaction means in plain words
Lamotrigine and Lemborexant 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.
Lamotrigine belongs to Central Nervous System; Lemborexant belongs to Central Nervous System.
Why it happens
Additive CNS depressant effects.
What to do
Start lemborexant at the lowest dose and warn patients about next-day drowsiness and driving. Reduce the dose if sedation is excessive.
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 Lamotrigine
Other interactions of Lemborexant
Frequently asked questions
Can I take Lamotrigine with Lemborexant?
MediHelp rates the interaction as moderate. Lamotrigine and Lemborexant 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 agents can cause somnolence and dizziness, and combining them may produce additive CNS depression. Next-day drowsiness and impaired psychomotor performance are the main concerns.
How serious is the interaction between Lamotrigine and Lemborexant?
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 warn patients about next-day drowsiness and driving. Reduce the dose if sedation is excessive.
What other medicines interact with Lamotrigine?
MediHelp also lists interactions of Lamotrigine with, for example, Desogestrel-ethinyl estradiol, Divalproex, Dofetilide. The full list is on the Lamotrigine page.
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