Drug interactions
Encorafenib + Nortriptyline
Severity: Major
Encorafenib and Nortriptyline: 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
Encorafenib can prolong the QT interval in a dose-related manner, as can nortriptyline. Combined use raises the risk of ventricular arrhythmia.
What this interaction means in plain words
Encorafenib and Nortriptyline 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.
Encorafenib belongs to Oncology; Nortriptyline belongs to Central Nervous System.
Why it happens
Additive prolongation of the QT interval.
What to do
Avoid if a non-QT-prolonging antidepressant is suitable. Otherwise obtain a baseline ECG, correct electrolytes and monitor the QTc during therapy.
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 Nortriptyline
- Disopyramide + Nortriptyline Contraindicated
- Dofetilide + Nortriptyline Contraindicated
- Dronedarone + Nortriptyline Contraindicated
- Ibutilide + Nortriptyline Contraindicated
- Isocarboxazid + Nortriptyline Contraindicated
- Methylene blue + Nortriptyline Contraindicated
Other interactions of Encorafenib
Frequently asked questions
Can I take Encorafenib with Nortriptyline?
MediHelp rates the interaction as major. Encorafenib and Nortriptyline 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. Encorafenib can prolong the QT interval in a dose-related manner, as can nortriptyline. Combined use raises the risk of ventricular arrhythmia.
How serious is the interaction between Encorafenib and Nortriptyline?
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 if a non-QT-prolonging antidepressant is suitable. Otherwise obtain a baseline ECG, correct electrolytes and monitor the QTc during therapy.
What other medicines interact with Nortriptyline?
MediHelp also lists interactions of Nortriptyline with, for example, Disopyramide, Dofetilide, Dronedarone. The full list is on the Nortriptyline page.
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