Health Canada has released their January 2009 issue of the Canadian Adverse Reaction Newsletter (CARN), which can be viewed online here.

The CARN is published quarterly and works to help alert “health professionals to potential signals detected through the review of case reports submitted to Health Canada.”

The current issue of CARN contains articles covering adverse reactions that are thought to be linked to natural health products over recent years including; 21 claims regarding echinacea, 24 claims regarding gingko and 11 concerning St. John's wort. The claims have been reported to Health Canada since July 2003. In addition, 31 AR’s regarding valerian have been reported to Health Canada between 1990 and 2008.

There are also articles regarding postoperative pain pumps and their role in articular chondrolysis (breakdown of the shoulder cartilage), a case report on kidney failure that is believed to be linked to Propolis, a product derived from bees, and a quarterly summary of advisories and warnings from Health Canada and the industry.