What is Ativan? Ativan is the brand name for lorazepam a benzodiazepine medication. It is used to treat anxiety disorders, trouble sleeping, active seizures including status epilepticus, alcohol withdrawal, and chemotherapy-induced nausea and vomiting. SEE: How Long Does Ativan [Lorazepam] Stay In Breastmilk   What is Xanax? Alprazolam, sold under the brand name Xanax, […]