Drug interactions
Eslicarbazepine + Nelfinavir
Severity: Major
Eslicarbazepine and Nelfinavir: major 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 may reduce nelfinavir concentrations, risking loss of virologic control. Its CYP2C19 inhibition may also alter formation of nelfinavir's active metabolite, but net effect is a likely decrease in antiviral activity.
What this interaction means in plain words
Eslicarbazepine and Nelfinavir 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 belongs to Central Nervous System; Nelfinavir belongs to Anti Virals.
Why it happens
CYP3A4 induction increases nelfinavir clearance, while CYP2C19 inhibition may change its metabolite formation.
What to do
Prefer a non-inducing antiepileptic. If used together, monitor HIV viral load and consider nelfinavir level monitoring.
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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Other interactions of Eslicarbazepine
- Eslicarbazepine + Mavacamten Contraindicated
- Eslicarbazepine + Rilpivirine Contraindicated
- Artemether / lumefantrine + Eslicarbazepine Major
- Avapritinib + Eslicarbazepine Major
- Bedaquiline + Eslicarbazepine Major
- Benzhydrocodone / acetaminophen + Eslicarbazepine Major
Other interactions of Nelfinavir
- Alfuzosin + Nelfinavir Contraindicated
- Avanafil + Nelfinavir Contraindicated
- Dronedarone + Nelfinavir Contraindicated
- Eletriptan + Nelfinavir Contraindicated
- Ergotamine + Nelfinavir Contraindicated
- Flibanserin + Nelfinavir Contraindicated
Frequently asked questions
Can I take Eslicarbazepine with Nelfinavir?
MediHelp rates the interaction as major. Eslicarbazepine and Nelfinavir 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 nelfinavir concentrations, risking loss of virologic control. Its CYP2C19 inhibition may also alter formation of nelfinavir's active metabolite, but net effect is a likely decrease in antiviral activity.
How serious is the interaction between Eslicarbazepine and Nelfinavir?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Prefer a non-inducing antiepileptic. If used together, monitor HIV viral load and consider nelfinavir level monitoring.
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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