Maraviroc and Lomitapide: Interaction Details
AI-assisted, pharmacist-reviewed · Source data updated Aug 8, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Lomitapide
No brand names on recordMaraviroc
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 P-gp substrate exposure
Interaction Deep Dive
Coadministration of lomitapide and P-gp substrates may increase P-gp substrates exposure. Consider dose reduction of the P-gp substrate when used concomitantly with lomitapide1.
Why it happens (mechanism)
Inhibition of P-gp-mediated efflux transport by lomitapide
Common questions
Can I take Maraviroc and Lomitapide together?
Increased P-gp substrate exposure Always confirm with your pharmacist or prescriber before making any change.
How serious is the Maraviroc and Lomitapide interaction?
It is rated moderate. Can be significant — usually manageable with 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.
Questions for your pharmacist
- Does my dose of Maraviroc or Lomitapide 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 anything you'd monitor while I'm on both?
References (1)
- Product Information: JUXTAPID® oral capsules, lomitapide oral capsules. Chiesi USA, Inc. (per Manufacturer), Cary, NC, 2026. DailyMed
Keep reading about Lomitapide
Keep reading about Maraviroc
These medications also interact with supplements
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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