Intended for healthcare professionals

Rapid response to:

Ward Round Drug point

Possible interaction between warfarin and cranberry juice

BMJ 2003; 327 doi: https://doi.org/10.1136/bmj.327.7429.1454 (Published 18 December 2003) Cite this as: BMJ 2003;327:1454

Rapid Response:

Patient care - who cares?

In the article Possible interactions between warfarin and cranberry
juice patients taking warfarin are advised to limit their intake of this
drink.

A news report in the Pharmaceutical Journal (27 September 2003)
issued by the Committee on Safety of Medicines (CSM) goes a step further
and states that patients treated with warfarin should avoid drinking
cranberry juice.

"Limit cranberry juice to one glass per day" is the advice issued by
the NHS in its current food guide for patients taking warfarin.

What is a patient to believe?

These examples of "expert information" are a reminder of the
importance of knowledge management. Until further information is
available, surely it would be prudent to advise patients taking warfarin
to avoid cranberry juice.

Reference:
Pharmaceutical Journal Vol:271 7268 p394

Maggie Spirito Perkins
57 Goodyers Avenue
Radlett
Hertfordshire
WD7 8AZ

Telephone/fax:01923 856040
email: maggiespirito@onetel.com

Competing interests:
None declared

Competing interests: No competing interests

03 January 2004
Maggie Spirito Perkins
retired
Home address WD7 8AZ