Valium is a benzodiazepine like the Serax I took.
In about 2005 or 06, I started getting six awful panic attacks a day for no good reason at all. Couldn't walk them off or anything, just had to wait until they were over in about 1/2 hour.
Well, before they started giving me xanax, when the worst ones hit around supper time, I would get in my car and start heading for the ER, not intending to actually go in the ER. It worked. They subsided a few blocks from the hospital.
But the xanax was a problem because you are in an out; it doesn't hold. So they put me on clonazepam. It works a lot better for me but none of that stuff makes me really feel any better otherwise.