Heparin tainted with unauthorized Chinese-made ingredients may be on the market in the U.S. and the Food and Drug Administration hasn’t moved swiftly enough to prevent it, according to a congressional probe nearly a decade after hundreds of deaths were linked to sullied batches of the blood-thinning drug.
This possible contamination is different from the earlier one, when Chinese producers made crude heparin containing a deadly chemical. They may be using cow and sheep intestines to produce the raw material for heparin that is supposed to be derived only from the intestinal membranes of pigs, according to a letter the House Energy and Commerce Committee sent Tuesday to the FDA. The agency has known about the risky practice since 2007, around the time it discovered the chemically enhanced crude heparin, the panel said.
