Authorities seized 2,634 bottles of Nature's Treat Energy Plus 1 from Nature's Treat, Inc., in Gainesville, Texas, and 363 more from ACD Distributing in Eugene, Oregon, the agency said in a statement.
Last year, the FDA banned dietary supplements containing ephedrine alkaloids, which come from the herb ephedra, as unsafe.
A federal judge in Utah ruled against at least some aspects of the ban in April, but the FDA is interpreting the ruling as only allowing the company involved in that case to continue selling ephedra products at lower doses than Nature's Treat products, an agency spokeswoman said. The FDA is also appealing the ruling.
Research has shown that the amphetamine-like herb can speed heart rate and constrict blood vessels even in seemingly healthy people, but it is particularly risky for those with heart disease or high blood pressure or who engage in strenuous exercise.
The deaths linked to the substance include that of Baltimore Orioles pitching prospect Steve Bechler, who collapsed and died during spring training two years ago.
Coping Techniques Help to Stay on Raw Food Diet
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