Drug interactions
Clotrimazole + Entrectinib
Severity: Moderate
Clotrimazole and Entrectinib: 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
Clotrimazole may increase entrectinib concentrations when systemically absorbed, raising the risk of QT prolongation, heart failure and other dose-related toxicities.
What this interaction means in plain words
Clotrimazole and Entrectinib 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.
Clotrimazole belongs to Anti Fungals; Entrectinib belongs to Oncology.
Why it happens
Clotrimazole inhibits CYP3A4, the main metabolic pathway of entrectinib.
What to do
Use topical forms or alternative antifungals where possible. If a CYP3A4 inhibitor is needed, reduce the entrectinib dose per labeling and monitor ECG.
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 Clotrimazole
- Clotrimazole + Lomitapide Major
- Clotrimazole + Mavacamten Major
- Clotrimazole + Mobocertinib Major
- Clotrimazole + Voclosporin Major
- Bosutinib + Clotrimazole Moderate
- Cannabidiol + Clotrimazole Moderate
Other interactions of Entrectinib
Frequently asked questions
Can I take Clotrimazole with Entrectinib?
MediHelp rates the interaction as moderate. Clotrimazole and Entrectinib 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. Clotrimazole may increase entrectinib concentrations when systemically absorbed, raising the risk of QT prolongation, heart failure and other dose-related toxicities.
How serious is the interaction between Clotrimazole and Entrectinib?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use topical forms or alternative antifungals where possible. If a CYP3A4 inhibitor is needed, reduce the entrectinib dose per labeling and monitor ECG.
What other medicines interact with Clotrimazole?
MediHelp also lists interactions of Clotrimazole with, for example, Lomitapide, Mavacamten, Mobocertinib. The full list is on the Clotrimazole page.
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