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# Public Citizen Sues FDA Seeking Cesium Chloride Ban
- URL: https://www.fdaweb.com/public-citizen-sues-fda-seeking-cesium-chloride-ban/
- Published: 2019-09-10T12:00:00.000Z
- Updated: 2026-09-15T01:49:02.000Z
- Author: David McFarland
- Tags: Drugs, #legacy-id-D5144968

Public Citizen 9/10 has [filed suit](https://default.salsalabs.org/T4c1c5748-fa51-43f0-a4b5-1cc1f6bb2b88/375f0e45-d83d-4c44-ae2a-fc00d328e005?ref=fdaweb.com) in Washington, DC federal court against FDA over its inaction to respond to the group’s 7/2018 citizen petition urging a ban on all dietary supplements containing cesium chloride or other cesium salts from the market. Because its year-old petition has not been acted on, the complaint says such a delay violates the Administrative Procedure Act. Cesium compounds have long been used in dietary supplements and pharmacy compounding despite their links to life-threatening cardiovascular events, the group contends.

Last year, FDA placed cesium chloride in a category of substances that may not be compounded under interim FDA guidance and issued a health alert to medical professionals, Public Citizen says. On 9/5, FDA issued a proposed rule to make permanent the ban on cesium chloride in pharmacy compounding. “Nonetheless, cesium chloride remains available in dietary supplements,” the group says.