Bio-Rad Laboratories, Inc., multinational manufacturer and distributor of life science research and clinical diagnostics products, has announced the launch of Liquichek Urine Toxicology O series of screening controls, the newest addition to Bio-Rad’s, urine toxicology quality control product portfolio. Liquichek Urine Toxicology, Levels S1O, S2O, S1O Low Opiate, and S2O Low Opiate, are prepared from human urine and contain 12 drugs or drug metabolites at levels 20% to 50% below or above commonly used immunoassay drug cutoff levels. Routine use of Liquichek Urine Toxicology O series provides laboratories the ability to monitor precision for a broad range of urine toxicology testing procedures and helps ensure quality on an ongoing basis. The product is supplied in four individual levels in a liquid (frozen) form that can be tested in the same manner as a patient specimen. This product contains oxazepam, which is suitable for testing benzodiazepine assays. Learn more about Liquichek Urine Toxicology Screen Controls.