Personal Health Data Heparin Sodium, 1,000 USP Heparin Units/500 mL (2 USP Heparin Units/mL), In 0.9 percent Sodium Chloride Injection, 500 mL by Hospira: Recall - Particulate Matter Friday, September 12, 2014 Risk of injected particulate material which may result in local inflammation, phlebitis, and/or low-level allergic response.Link to original article