Buy Ativan Online Overnight Delivery Available on Newlifemedix. It is used for panic disorder and anxiety. When a patient is in a panic situation or regularly panic, or in fear then ativan is used for stable them. Ativan used to increase our dopamine level in the brain so it should relax our body and the patient get sleep. It can take before sleeping. In an anxiety situation the doctor recommended to sleep well and Ativan helps to sleep well.