Drug interactions
Encorafenib + Quetiapine
Severity: Major
Encorafenib and Quetiapine: 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
Both drugs can prolong the QT interval, and encorafenib does so in a dose-dependent manner. Combined use raises the risk of torsades de pointes and other serious ventricular arrhythmias.
What this interaction means in plain words
Encorafenib and Quetiapine 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; Quetiapine belongs to Central Nervous System.
Why it happens
Additive pharmacodynamic QT prolongation through cardiac repolarization effects.
What to do
Avoid the combination where possible and consider a non-QT-prolonging antipsychotic. If it is unavoidable, check baseline and follow-up ECGs and correct potassium and magnesium.
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 Quetiapine
- Adagrasib + Quetiapine Major
- Amiodarone + Quetiapine Major
- Amisulpride + Quetiapine Major
- Amoxapine + Quetiapine Major
- Anagrelide + Quetiapine Major
- Apalutamide + Quetiapine Major
Other interactions of Encorafenib
Frequently asked questions
Can I take Encorafenib with Quetiapine?
MediHelp rates the interaction as major. Encorafenib and Quetiapine 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. Both drugs can prolong the QT interval, and encorafenib does so in a dose-dependent manner. Combined use raises the risk of torsades de pointes and other serious ventricular arrhythmias.
How serious is the interaction between Encorafenib and Quetiapine?
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 where possible and consider a non-QT-prolonging antipsychotic. If it is unavoidable, check baseline and follow-up ECGs and correct potassium and magnesium.
What other medicines interact with Quetiapine?
MediHelp also lists interactions of Quetiapine with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the Quetiapine page.
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