Lorazepam, a member of the benzodiazepine class of drugs, is marketed under the name Ativan. Benzodiazepines are sedatives, hypnotizers, anxiolytics (a medication that reduces anxiety), anticonvulsants, and muscle relaxants. They also depress the central nervous system. The main component of Ativan, lorazepam, is frequently recommended to treat ailments such severe seizures, sleeplessness, and anxiety disorders.