Drug interactions
Eslicarbazepine + Mavacamten
Severity: Contraindicated
Eslicarbazepine and Mavacamten: 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
Eslicarbazepine inhibits CYP2C19 and induces CYP3A4, which changes mavacamten exposure in unpredictable ways. Raised exposure risks systolic dysfunction and heart failure, whereas lowered exposure reduces efficacy.
What this interaction means in plain words
Eslicarbazepine and Mavacamten 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.
Eslicarbazepine belongs to Central Nervous System; Mavacamten belongs to Cardiovascular.
Why it happens
Eslicarbazepine inhibits CYP2C19 and induces CYP3A4, both of which contribute to mavacamten clearance.
What to do
Avoid the combination and choose an alternative antiseizure drug. If the pair has been used, monitor LVEF and clinical status closely.
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 Eslicarbazepine
Other interactions of Mavacamten
- Apalutamide + Mavacamten Contraindicated
- Carbamazepine + Mavacamten Contraindicated
- Clarithromycin + Mavacamten Contraindicated
- Dexlansoprazole + Mavacamten Contraindicated
- Efavirenz + Mavacamten Contraindicated
- Enzalutamide + Mavacamten Contraindicated
Frequently asked questions
Can I take Eslicarbazepine with Mavacamten?
MediHelp rates the interaction as contraindicated. Eslicarbazepine and Mavacamten 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. Eslicarbazepine inhibits CYP2C19 and induces CYP3A4, which changes mavacamten exposure in unpredictable ways. Raised exposure risks systolic dysfunction and heart failure, whereas lowered exposure reduces efficacy.
How serious is the interaction between Eslicarbazepine and Mavacamten?
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 the combination and choose an alternative antiseizure drug. If the pair has been used, monitor LVEF and clinical status closely.
What other medicines interact with Eslicarbazepine?
MediHelp also lists interactions of Eslicarbazepine with, for example, Rilpivirine, Artemether / lumefantrine, Avapritinib. The full list is on the Eslicarbazepine page.
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