What is the difference between xanax and lorazapam both benzo?

Vistaril is an antihistamine and Lorazepam is a benzodiazepine. I don't think you quite answered the question that was asked. Vistaril is also used to treat anxiety. The biggest difference between Vistaril and Ativan (Lorazapam) is: Vistaril is non addictive as opposed to Ativan, which is! It is also, Not a controlled substance. Whereas Lorazepam is! They are 2 totally different drugs! If your wondering if it will get you high, Yes it will.