Lemborexant and Atorvastatin: Interaction Details
AI-assisted, pharmacist-reviewed · Source data updated Jul 15, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Atorvastatin
Lemborexant
How we grade severity & evidence
Severity levels
- Contraindicated: These should generally not be used together.
- Major: Potentially serious — often needs a change or close monitoring.
- Moderate: Can be significant — usually manageable with monitoring.
- Minor: Usually limited clinical impact.
Evidence grades
- Established: Well documented — supported by controlled studies or strong clinical data.
- Probable: Good supporting evidence, though not definitively proven.
- Suspected: Some evidence suggests this interaction, but it is not well established.
- Possible: Limited or conflicting evidence; the interaction may occur.
- Theoretical: Predicted from the drugs' pharmacology; not yet confirmed in people.
Ratings come from the documented interaction literature and are reviewed by a pharmacist. They describe the documented risk of the combination, not what will necessarily happen to you — your dose, timing, and health picture all matter.
What happens
Increased lemborexant exposure and an increased risk of lemborexant-related adverse reactions.
Interaction Deep Dive
Concomitant use of lemborexant with a weak CYP3A inhibitor may increase lemborexant exposure, which may increase the risk of lemborexant-associated adverse reactions. If coadministered, the maximum recommended dose of lemborexant is no more than 5 mg per night1.
Why it happens (mechanism)
Inhibition of CYP3A-mediated metabolism of lemborexant
Literature reports
1 report — tap to read
a) A physiologically-based pharmacokinetic modeling study predicted that concomitant use of lemborexant and weak CYP3A inhibitors increased lemborexant exposure by less than 2-fold 1.
Common questions
Can I take Lemborexant and Atorvastatin together?
Increased lemborexant exposure and an increased risk of lemborexant-related adverse reactions. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Lemborexant and Atorvastatin interaction?
It is rated major. Potentially serious — often needs a change or close monitoring.
How quickly could this interaction happen?
The documented onset is "unspecified". The timing of this interaction is not well characterized.
How strong is the evidence for this interaction?
The evidence is graded "theoretical". Predicted from the drugs' pharmacology; not yet confirmed in people.
From our Q&A
Real reader questions about these medications, each personally answered by our pharmacist:
Questions for your pharmacist
- Does my dose of Lemborexant or Atorvastatin need adjusting while I take them together?
- What symptoms should prompt me to call you or my prescriber right away?
- Does the timing of my doses matter for this combination?
- Is there a safer alternative to one of these medications for me?
References (1)
- Product Information: DAYVIGO(R) oral tablets, lemborexant oral tablets. Eisai Inc (per FDA), Nutley, NJ, 2025. DailyMed
Keep reading about Atorvastatin
Keep reading about Lemborexant
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Prescription drugs aren't the whole picture — herbal and dietary supplements can interact with them too. From the evidence-graded Natural Medicines database:
major · moderate · minor — check everything you take with our drug–supplement interaction checker.
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