Drug interactions
Econazole + Warfarin
Severity: Moderate
Econazole and Warfarin: 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
Topical econazole applied over large areas, to genital skin or under occlusive dressings can be absorbed enough to raise the INR in patients taking warfarin. Bleeding episodes have been reported with azole antifungals used this way.
What this interaction means in plain words
Econazole and Warfarin 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.
Econazole belongs to Anti Fungals; Warfarin belongs to Cardiovascular.
Why it happens
Systemically absorbed econazole inhibits CYP2C9 and other CYP enzymes, reducing clearance of the more potent S-warfarin.
What to do
Check INR within several days of starting econazole, particularly with extensive, genital or occluded application, and adjust the warfarin dose as needed. Limit the treated area where possible.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Econazole and Warfarin, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Warfarin
- Defibrotide + Warfarin Contraindicated
- Ketorolac + Warfarin Contraindicated
- Abciximab + Warfarin Major
- Acetylsalicylic acid + Warfarin Major
- Adagrasib + Warfarin Major
- Amiodarone + Warfarin Major
Frequently asked questions
Can I take Econazole with Warfarin?
MediHelp rates the interaction as moderate. Econazole and Warfarin 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. Topical econazole applied over large areas, to genital skin or under occlusive dressings can be absorbed enough to raise the INR in patients taking warfarin. Bleeding episodes have been reported with azole antifungals used this way.
How serious is the interaction between Econazole and Warfarin?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check INR within several days of starting econazole, particularly with extensive, genital or occluded application, and adjust the warfarin dose as needed. Limit the treated area where possible.
What other medicines interact with Warfarin?
MediHelp also lists interactions of Warfarin with, for example, Defibrotide, Ketorolac, Abciximab. The full list is on the Warfarin page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
