Drug interactions
Eslicarbazepine + Ombitasvir / paritaprevir / ritonavir and dasabuvir
Severity: Major
Eslicarbazepine and Ombitasvir / paritaprevir / ritonavir and dasabuvir: major interaction.
Last updated Sources: UK SmPC
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 may reduce paritaprevir and ritonavir concentrations by inducing CYP3A4. This can result in hepatitis C treatment failure.
What this interaction means in plain words
Eslicarbazepine and Ombitasvir / paritaprevir / ritonavir and dasabuvir can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Why it happens
Eslicarbazepine induces CYP3A4, increasing the metabolism of paritaprevir and ritonavir.
What to do
Avoid the combination and use a non-inducing antiseizure drug during therapy. Consult a specialist if an alternative is not possible.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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References
- Eslicarbazepine Amarox 200 mg tablets - SmPC sections 4.3/4.5 (class statement: medicinal products that are mainly eliminated by metabolism through CYP3A4; "In vivo eslicarbazepine showed an inducing effect on the metabolism of medicinal products that are mainly eliminated by metabolism through CYP… — electronic medicines compendium (UK SmPC)
Other interactions of Eslicarbazepine
- Eslicarbazepine + Mavacamten Contraindicated
- Eslicarbazepine + Rilpivirine Contraindicated
- Artemether / lumefantrine + Eslicarbazepine Major
- Avapritinib + Eslicarbazepine Major
- Bedaquiline + Eslicarbazepine Major
- Benzhydrocodone / acetaminophen + Eslicarbazepine Major
Frequently asked questions
Can I take Eslicarbazepine with Ombitasvir / paritaprevir / ritonavir and dasabuvir?
MediHelp rates the interaction as major. Eslicarbazepine and Ombitasvir / paritaprevir / ritonavir and dasabuvir can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Eslicarbazepine may reduce paritaprevir and ritonavir concentrations by inducing CYP3A4. This can result in hepatitis C treatment failure.
How serious is the interaction between Eslicarbazepine and Ombitasvir / paritaprevir / ritonavir and dasabuvir?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination and use a non-inducing antiseizure drug during therapy. Consult a specialist if an alternative is not possible.
What other medicines interact with Eslicarbazepine?
MediHelp also lists interactions of Eslicarbazepine with, for example, Mavacamten, Rilpivirine, Artemether / lumefantrine. The full list is on the Eslicarbazepine page.
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