Chemists move closer toward developing safer, fully-synthetic form of heparin

Chemists are reporting a major advance toward developing a safer, fully-synthetic version of heparin, the widely used blood thinner now produced from pig intestines. The U. S. Food and Drug Administration last spring linked contaminated batches of the animal-based product, imported from China, to more than 80 deaths and hundreds of allergic reactions among patients exposed to the drug for kidney dialysis and other conditions.

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