FDA warns companies about illegal sales of dietary supplements

(HealthDay)—Warning letters have been sent to five companies for illegally selling dietary supplements that contain cesium chloride, the U.S. Food and Drug Administration said Tuesday.

Earlier this year, the agency warned consumers and health care professionals to avoid using dietary supplements containing cesium salts, primarily cesium chloride. The agency also issued a warning in 2018 about significant safety risks associated with cesium chloride in compounded drugs.

Cesium chloride is sometimes promoted as an alternative treatment for cancer, but no cesium chloride-containing products have been approved by the FDA to treat cancer or any other disease. Companies must provide safety information about cesium chloride to the FDA before including it in a dietary supplement. The companies that received the warning letters have not met this requirement, so their dietary products cannot be legally sold, the FDA said.

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