Drug interactions
Daridorexant + Lamotrigine
Severity: Moderate
Daridorexant and Lamotrigine: 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 dizziness, and together they may cause additive CNS depression. This can impair next-day alertness, driving and psychomotor performance.
What this interaction means in plain words
Daridorexant and Lamotrigine 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.
Daridorexant belongs to Central Nervous System; Lamotrigine belongs to Central Nervous System.
Why it happens
Additive central nervous system depression through pharmacodynamic effects.
What to do
Use the lowest effective daridorexant dose and counsel patients about next-day impairment and driving. Reduce the dose 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 Lamotrigine
Other interactions of Daridorexant
Frequently asked questions
Can I take Daridorexant with Lamotrigine?
MediHelp rates the interaction as moderate. Daridorexant and Lamotrigine 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 dizziness, and together they may cause additive CNS depression. This can impair next-day alertness, driving and psychomotor performance.
How serious is the interaction between Daridorexant and Lamotrigine?
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 daridorexant dose and counsel patients about next-day impairment and driving. Reduce the dose if excessive sedation occurs.
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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