anxiety
"I had a scary adverse reaction with Ativan. I was given 1 mg in the hospital orally for the very bad anxiety I was having. About an hour and a half later I began getting the most strangest, scariest hallucinations. Both visual and sensory. I don't know if this was an allergic reaction but I never had this problem with any other benzodiazepine. Please be cautious with Ativan in particular, because it altered the functioning of my brain (it wore off the next day)."