How Cranberry juice with warfarin Affects Your Medications
Occasional normal amounts are generally fine; avoid large or sudden increases in cranberry juice and mention it to your anticoagulation clinic.
This interaction is generally considered minor in severity.
How It Happens
Large amounts of cranberry juice have been linked in some reports to an increased warfarin effect (higher INR and bleeding risk).
What to Do
Occasional normal amounts are generally fine; avoid large or sudden increases in cranberry juice and mention it to your anticoagulation clinic.
Medication Classes Affected
Specific Medications to Watch
Sources
This information is educational — not medical advice.
This page is provided for general educational purposes and summarizes publicly available data from sources such as the U.S. Food & Drug Administration. It is not a substitute for the judgment of a licensed clinician and should not be used to start, stop, or change any medication. It may be incomplete or out of date, and individual circumstances vary. Always talk with your prescriber or pharmacist about your specific medications and health conditions. If you think you may have a medical emergency, call 911.