Lorazepam is a type of benzodiazepine, an antianxiety medication that is metabolized more rapidly than many other benzodiazepines. Lorazepam is mainly used for the short-term relief of symptoms of anxiety associated with depression, and it has been used to treat insomnia, nausea, and vomiting. Lorazepam has been evaluated as an adjunctive medication for the prevention of chemotherapy-induced nausea and vomiting in patients with cancer.