The objective of USP<800> is to provide healthcare personnel and patients detailed standards and guidelines on proper procedures for handling hazardous drugs (HDs), which are defined by the National Institute for Occupational Safety and Health (NIOSH) as chemical substances that exhibit “one or more of the following characteristics in humans or animals: carcinogenicity, teratogenicity or developmental toxicity, reproductive toxicity, organ toxicity at low doses, genotoxicity, or structure and toxicity profiles of new drugs that mimic existing hazardous drugs.”