Buy Ativan online, Ativan (Lorazepam) belongs to a group of drugs called benzodiazepines. Lorazepam affects chemicals in the brain that may become unbalanced and cause anxiety. It is used to treat anxiety disorders, trouble sleeping, active seizures including status epilepticus, restless legs syndrome.This medication is an antianxiety agent. It works by changing the actions of chemicals in your brain. Anxiety disorder is treated with talk therapy, stress management, medicine, relaxation techniques, and lifestyle changes.