The five lots of Heparin Sodium Active Pharmaceutical Ingredient (API) and six lots of Heparin Lithium were seized at the FDA’s request by U.S. Marshals. These products, which were manufactured from material imported from China, had been found by the agency to be contaminated with over-sulfated chondroitin sulfate (OSCS), a substance that mimics heparin’s anticoagulant activity.
