Buy Ativan 2mg online USA Overnight Delivery | buy ativan online, order ativan online, ativan 2mg online, | What is Ativan? Ativan belongs to the group referred to as sedative-hypnotic, and it is used to treat disorders- anxiety disorder, sleep disorders, and catatonic seizures (fit.). Lorazepam brand name( Ativan) buy Ativan online is on the list of essential medicines of World Health Organization(WHO).