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FDA identifies contamination source in blood pressure medicines used by millions

External Link - Source: The Washington Post

Federal regulators say they’ve identified the source of the cancer-causing impurities that have tainted millions of bottles of commonly used generic blood pressure and heart failure medications recalled by drugmakers over the last seven months.

The carcinogens are a chemical byproduct of the process used to synthesize the active ingredient in the drugs, which include valsartanlosartan and irbesartan. People who take those drugs may have been exposed to trace amounts of impurities for at least four years, after a switch in how companies manufactured the active ingredient, according to the Food and Drug Administration.

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