Drug interactions
Encorafenib + Perphenazine
Severity: Moderate
Encorafenib and Perphenazine: 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
Both agents can prolong the QT interval, so combined use may increase the risk of torsades de pointes, especially with electrolyte disturbances or cardiac disease.
What this interaction means in plain words
Encorafenib and Perphenazine 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.
Encorafenib belongs to Oncology; Perphenazine belongs to Central Nervous System.
Why it happens
Additive QT prolongation.
What to do
Obtain baseline and periodic ECGs and correct potassium and magnesium abnormalities. Consider an alternative to perphenazine if QTc becomes 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 Perphenazine
- Ibutilide + Perphenazine Contraindicated
- Perphenazine + Pimozide Contraindicated
- Perphenazine + Thioridazine Contraindicated
- Adagrasib + Perphenazine Major
- Alfentanil + Perphenazine Major
- Amiodarone + Perphenazine Major
Other interactions of Encorafenib
Frequently asked questions
Can I take Encorafenib with Perphenazine?
MediHelp rates the interaction as moderate. Encorafenib and Perphenazine 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. Both agents can prolong the QT interval, so combined use may increase the risk of torsades de pointes, especially with electrolyte disturbances or cardiac disease.
How serious is the interaction between Encorafenib and Perphenazine?
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 baseline and periodic ECGs and correct potassium and magnesium abnormalities. Consider an alternative to perphenazine if QTc becomes prolonged.
What other medicines interact with Perphenazine?
MediHelp also lists interactions of Perphenazine with, for example, Ibutilide, Pimozide, Thioridazine. The full list is on the Perphenazine page.
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