Bristol-Myers Squibb initiated a voluntary recall of one lot of 1,000-count bottles of Coumadin (warfarin sodium) Crystalline 5 mg tablets. Company testing of tablets from a returned bottle found a tablet to be higher in potency than expected. The lot number affected in the U.S. is 9H49374A with an expiry date of September 30, 2012.
http://www.fda.gov/Safety/MedWatch/...tyAlertsforHumanMedicalProducts/ucm253615.htm
http://www.fda.gov/Safety/MedWatch/...tyAlertsforHumanMedicalProducts/ucm253615.htm