"i was given vistaril for ptsd/aad (acute anxiety disorder) and i really don&#039;t like it. initially it helps with anxiety but if i am stressed at all or put in a situation with stress its so much worse than without the medicine. it also makes it really difficult to function normally; i feel like i&#039;m wading through jello and my brain is about 4 seconds behind. we are going to try xanax at my next visit."