Amid indications that more people may have died or been harmed after being given a brand of the blood thinner heparin, federal drug regulators said Thursday that they had found “potential deficiencies” at a Chinese plant that supplied much of the active ingredient for the drug.
Baxter International, which makes the brand of heparin associated with the problems, and buys supplies from the Chinese plant, announced that it was expanding a recall to include virtually all its heparin products. Though Baxter produces much of the heparin used in the United States, regulators said the other major supplier would be able to meet the demand.
The Food and Drug Administration said the number of deaths possibly associated with the drug, made from pig intestines, had risen to 21 from 4. But it cautioned that many of those patients were already seriously ill and that the drug might not have caused their deaths.
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