Lorazepam is in a group of drugs called benzodiazepines and is used to treat anxiety Brand Names: Ativan . Pill Imprint 1 WATSON (Lorazepam 1 mg). May 7, - The extended release alprazolam or Xanax XR is mg – 1 mg twice a day. Lorazepam is also used for anxiety disorder as well as insomnia. Feb 16, - Ativan (lorazepam) Is often prescribed to treat the symptoms of panic and anxiety disorders. Learn how this benzodiazepines medication works.