Drug interactions
Ezogabine + Lapatinib
Severity: Moderate
Ezogabine and Lapatinib: moderate 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
Lapatinib is a known QT-prolonging kinase inhibitor and ezogabine can modestly lengthen the QT interval. Together they may increase the risk of torsades de pointes.
What this interaction means in plain words
Ezogabine and Lapatinib can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Ezogabine belongs to Central Nervous System; Lapatinib belongs to Oncology.
Why it happens
Additive pharmacodynamic prolongation of cardiac repolarization.
What to do
Perform an ECG at baseline and periodically during co-therapy, and keep potassium and magnesium in the normal range. Reduce or interrupt lapatinib or reconsider ezogabine if the QTc becomes markedly prolonged.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Ezogabine
Other interactions of Lapatinib
- Dofetilide + Lapatinib Contraindicated
- Ibutilide + Lapatinib Contraindicated
- Lapatinib + Pimozide Contraindicated
- Lapatinib + Saquinavir Contraindicated
- Lapatinib + Thioridazine Contraindicated
- Adagrasib + Lapatinib Major
Frequently asked questions
Can I take Ezogabine with Lapatinib?
MediHelp rates the interaction as moderate. Ezogabine and Lapatinib can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Lapatinib is a known QT-prolonging kinase inhibitor and ezogabine can modestly lengthen the QT interval. Together they may increase the risk of torsades de pointes.
How serious is the interaction between Ezogabine and Lapatinib?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Perform an ECG at baseline and periodically during co-therapy, and keep potassium and magnesium in the normal range. Reduce or interrupt lapatinib or reconsider ezogabine if the QTc becomes markedly prolonged.
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.
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