Visteral Side Effects
I swear either I'm having a Deja Vu or this was just here. Anyway, yes, I was given Vistaril as a shot, in the butt cheek, in my docs office one day when I went full blown panic on them. I felt like such an idiot. It was a wonderful calm, relaxed and then sleepy feeling. As the above poster said, it is an antihistimine like Benadryl, but BIGGER
Some docs prescribe this instead of your Benzos (Ativan, Xanax, Klonopin) etc. because it is not habit forming, and no withdrawal. I think you'll feel sleepy, but will adjust quickly. Best of luck.

I do think it is like Ativan and Xanax and is a take as you need basis. The Klonopin I am on, some say they take as needed, but is inteded to reach a therapeutic level, and even calm. But like I said, all of these are benzos and can be addictive, and have withdrawall symptoms. If Vistaril does it for you, you will be way better off. Give it a try and think positive. We often can make up our minds about meds before we even try them and not give them a fair shake. Good luck