Drug interactions
Ezogabine + Ibutilide
Severity: Major
Ezogabine and Ibutilide: 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
Ibutilide is a class III antiarrhythmic that markedly prolongs the QT interval and carries a high risk of torsades de pointes. Ezogabine adds to repolarization delay, increasing this risk.
What this interaction means in plain words
Ezogabine and Ibutilide 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.
Ezogabine belongs to Central Nervous System; Ibutilide belongs to Cardiovascular.
Why it happens
Additive prolongation of cardiac repolarization.
What to do
Avoid the combination if possible. If ibutilide is needed, ensure continuous ECG monitoring and normal potassium and magnesium levels.
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 Ezogabine
Other interactions of Ibutilide
- Amiodarone + Ibutilide Contraindicated
- Amisulpride + Ibutilide Contraindicated
- Chlorpromazine + Ibutilide Contraindicated
- Clarithromycin + Ibutilide Contraindicated
- Desipramine + Ibutilide Contraindicated
- Dolasetron + Ibutilide Contraindicated
Frequently asked questions
Can I take Ezogabine with Ibutilide?
MediHelp rates the interaction as major. Ezogabine and Ibutilide 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. Ibutilide is a class III antiarrhythmic that markedly prolongs the QT interval and carries a high risk of torsades de pointes. Ezogabine adds to repolarization delay, increasing this risk.
How serious is the interaction between Ezogabine and Ibutilide?
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 if possible. If ibutilide is needed, ensure continuous ECG monitoring and normal potassium and magnesium levels.
What other medicines interact with Ezogabine?
MediHelp also lists interactions of Ezogabine with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the Ezogabine page.
Full monographs, dosing and an interaction checker in the MediHelp app
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