Drug interactions
Ezogabine + Protriptyline
Severity: Moderate
Ezogabine and Protriptyline: 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
Tricyclic antidepressants such as protriptyline can prolong the QT and QRS intervals, especially at higher exposure or in overdose. Combined with ezogabine, the risk of arrhythmia may be increased in susceptible patients.
What this interaction means in plain words
Ezogabine and Protriptyline 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.
Why it happens
Additive pharmacodynamic effects on cardiac conduction and repolarization.
What to do
Obtain a baseline ECG and monitor the QT interval, especially after dose increases. Avoid use in patients with congenital long QT, bradycardia or uncorrected electrolyte disturbances.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Ezogabine and Protriptyline, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Ezogabine
Frequently asked questions
Can I take Ezogabine with Protriptyline?
MediHelp rates the interaction as moderate. Ezogabine and Protriptyline 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. Tricyclic antidepressants such as protriptyline can prolong the QT and QRS intervals, especially at higher exposure or in overdose. Combined with ezogabine, the risk of arrhythmia may be increased in susceptible patients.
How serious is the interaction between Ezogabine and Protriptyline?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Obtain a baseline ECG and monitor the QT interval, especially after dose increases. Avoid use in patients with congenital long QT, bradycardia or uncorrected electrolyte disturbances.
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
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
