Interaction Between Warfarin and Cranberry Juice

Jonathan L. Aston, BS; Amy E. Lodolce, PharmD; and Nancy L. Shapiro, PharmD


Pharmacotherapy. 2006;26(9):1314-1319. 

In This Article

Identification of Articles

Articles about the potential interaction were identified by searching the MEDLINE database (from January 1966-June 2006) and the International Pharmaceutical Abstracts (from January 1970-June 2006) by using the terms cranberry and warfarin together. A search of the MedWatch database of the United States Food and Drug Administration (available from from 1996-present revealed no safety reports specific to a warfarin-cranberry interaction. A search of the newsletter published by the United Kingdom's Committee on Safety of Medicines revealed a summary of 12 case reports. Reference lists of identified articles were manually searched for additional relevant citations.


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