Drug interactions
Darifenacin + Encorafenib
Severity: Moderate
Darifenacin and Encorafenib: 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
Encorafenib both inhibits and induces CYP3A4, so darifenacin exposure may rise or fall. This may lead to more anticholinergic effects or reduced efficacy.
What this interaction means in plain words
Darifenacin and Encorafenib 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.
Darifenacin belongs to Genitourinary; Encorafenib belongs to Oncology.
Why it happens
Mixed CYP3A4 inhibition and induction by encorafenib.
What to do
Monitor for both anticholinergic adverse effects and loss of efficacy, and adjust the darifenacin dose accordingly.
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 Darifenacin
Other interactions of Encorafenib
Frequently asked questions
Can I take Darifenacin with Encorafenib?
MediHelp rates the interaction as moderate. Darifenacin and Encorafenib 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 both inhibits and induces CYP3A4, so darifenacin exposure may rise or fall. This may lead to more anticholinergic effects or reduced efficacy.
How serious is the interaction between Darifenacin and Encorafenib?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for both anticholinergic adverse effects and loss of efficacy, and adjust the darifenacin dose accordingly.
What other medicines interact with Darifenacin?
MediHelp also lists interactions of Darifenacin with, for example, Atazanavir, Bethanechol, Clarithromycin. The full list is on the Darifenacin page.
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