BioMedNewsBreaks — NRx Pharmaceuticals, Inc. (NASDAQ: NRXP) Petitions FDA to Ban Benzethonium Chloride from Ketamine Products
NRx Pharmaceuticals (NASDAQ: NRXP), a clinical-stage biopharmaceutical company, has filed a Citizen Petition with the FDA requesting the removal of Benzethonium Chloride (BZT) from all ketamine products sold in the U.S. BZT, a quaternary amine preservative, is not Generally Recognized as Safe (GRAS) for parenteral use or Generally Recognized as Safe and Effective (GRASE) for topical use, and has demonstrated toxicity to epithelial cells and nerves. NRx previously submitted an Abbreviated New Drug Application for a preservative-free ketamine formulation with three-year room temperature stability and sterility, supported by a newly filed patent. The company is also pursuing a labeled indication…