Bromide (UV, Gold Chloride) is a drug used in the same manner as phenobarbital to control nervous system disorders in dogs. As it can be toxic at high levels, it is important to measure levels of circulating bromide in the dog's blood to ensure the correct dosing for the size of the dog.Catachem's Bromide (UV, Gold Chloride) accurately determines levels from 5 mg/dL to 400 mg/dL. Toxicity in most dogs begins at approximately 120 mg/dL. The assay is designed for use on automated analyzers and has a 60 day on-board stability to accommodate the ebb and flow of testing volume.