Drug interactions
Aprepitant + Lomitapide
Severity: Contraindicated
Aprepitant and Lomitapide: contraindicated 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
Lomitapide is a sensitive CYP3A4 substrate and moderate CYP3A4 inhibitors such as aprepitant can substantially raise its levels. This increases the risk of hepatotoxicity and gastrointestinal adverse effects.
What this interaction means in plain words
Aprepitant and Lomitapide are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Aprepitant belongs to Gastrointestinal Tract; Lomitapide belongs to Cardiovascular.
Why it happens
Inhibition of CYP3A4-mediated lomitapide metabolism by aprepitant.
What to do
Avoid per lomitapide labeling, which contraindicates moderate and strong CYP3A4 inhibitors; use an antiemetic without CYP3A4 inhibition, such as ondansetron.
What to ask your pharmacist
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
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Other interactions of Aprepitant
- Aprepitant + Pimozide Contraindicated
- Aprepitant + Avapritinib Major
- Aprepitant + Bosutinib Major
- Aprepitant + Carbamazepine Major
- Aprepitant + Cobicistat Major
- Aprepitant + Cobimetinib Major
Other interactions of Lomitapide
- Clarithromycin + Lomitapide Contraindicated
- Crizotinib + Lomitapide Contraindicated
- Diltiazem + Lomitapide Contraindicated
- Efavirenz + Lomitapide Contraindicated
- Ensitrelvir + Lomitapide Contraindicated
- Erythromycin + Lomitapide Contraindicated
Frequently asked questions
Can I take Aprepitant with Lomitapide?
MediHelp rates the interaction as contraindicated. Aprepitant and Lomitapide are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Lomitapide is a sensitive CYP3A4 substrate and moderate CYP3A4 inhibitors such as aprepitant can substantially raise its levels. This increases the risk of hepatotoxicity and gastrointestinal adverse effects.
How serious is the interaction between Aprepitant and Lomitapide?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid per lomitapide labeling, which contraindicates moderate and strong CYP3A4 inhibitors; use an antiemetic without CYP3A4 inhibition, such as ondansetron.
What other medicines interact with Aprepitant?
MediHelp also lists interactions of Aprepitant with, for example, Pimozide, Avapritinib, Bosutinib. The full list is on the Aprepitant page.
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