Warnings and Hazards
Warnings about products, services, information or anything else considered to increase risks and hazards for people with PSD will be published on this page.
Recommendation to limit intake of Cranberry Juice
The BMJ (British Medical Journal) has published an article which suggests that there is a possible interaction between warfarin and cranberry juice. The author recommends that until further research is conducted anyone taking warfarin (or Coumadin) should limit their intake of cranberry juice.
Giving Blood Can Put You At Risk
The UK National Blood Service have advised that people with Protein S Deficiency should not donate blood. It appears that even if you are not on medication the process of transfusion itself is a risk factor to the donor - your blood pressure will drop and this could cause thrombosis.
Update 23/Aug/2001: If you call the UK National Blood Service on 08457 711 711 it is best to ask for the assistance of a specialist advisor.
Incorrect Web Site Information
This page incorrectly stated "Deficient protein S can result in excessive bleeding tendencies" when in fact "bleeding" should read "clotting". An email was sent to Ed Bennett at University of Maryland Medical Center (21 Aug 2000) who passed it on to Katherine Holland at Dr Koop.
Update 7/Nov/2000: Suzanne Meyers at Dr Koop advises that their Medical Advisory Board has reviewed the content and agreed to the correction. The information was provided to them by adam.com and they will follow the matter up with them and ensure other syndicated sites (such as Meridian Health System, Lancaster Health Alliance, Netscape and ABC Network News) will also be updated.
Caution About Packaging
The colours used for the different doses of warfarin are widely established. If you are using warfarin from a Norton Healthcare blister pack be sure to take the correct dose - until recently they had 1mg brown tablets packed in blue packaging, 3mg blue tablets packed in green packaging, and 5mg pink tablets in orange packaging.
Update 14/Aug/2000: Norton Healthcare confirmed that the confusing colour scheme was already being replaced as a result of other enquiries they received.
http://www.protein.org.uk/warnings.php
Last updated: Tuesday, 12th June 2007, © 2000-2008
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