a panic attack is a rush of adrenaline as far as I know. You know you can feel it rise up in you and your heart starts racing and you thoughts narrow down and fixate, you get tunnel vision and you feel like you have to run, and of course you're wide awake. That's how the dreams were affecting me, well maybe not that extreme. But definitely enough of that stuff to get me wide awake.
I started out on 1 mg of the prasozin and slowly worked my way up to 5 mg and they all of a sudden stopped just like that. I swear I haven't been awakened by a dream since then. I understand that I'm probably still dreaming but I'm not even remembering my dreams at all. I should say that I was diagnosed with PTSD years ago and they use this med for PTSD but I see no reason why it won't help you because you said you were waking up when you start to dream. I'm not sure if it will work but I really hope it does. Sleep is everything when you're suffering from mental illness. Without sleep there is no chance for wellness, in my opinion.