I take Paxil (SSRI anti-depressant) and Metoprolol (a beta-blocker). Both helped me; they took the sharp, rough edge off the anxiety, hyper-responsiveness, etc. But they didn't get rid of it by any stretch. They just helped make each moment more bearable.
I have depression anyway, so I was on Paxil before the PTSD came to be ... I increased my Paxil and that helped lessen the deep, deep lows ... I found out too late that beta-blockers have been found to be helpful in treating the startle responses and hyper-vigilance (my Doc told me there had been a study about this with troops returning from the war) or I would have happily increased my metoprolol too. I take the beta-blocker for mild high blood pressure (also started pre-trauma) but have noticed it has a calming effect -- it just gets makes that rough, edgy anxiety go away. I don't feel drugged or dopey at all -- just an amount of anxiety and preoccupation is gone.
No, no pill will make PTSD go away, nor will any pill give you your energy back. The only way to achieve those things is to work on recovery. That means you have to face your trauma, come to terms with it, grow as a person, and move forward with life. It is hard. The meds are a tool to help you through that process. The right meds might help lessen the anxiety, take the edge off the fear, help lessen compulsive behaviors, or help to make your lows be not quite so low (or not last quite so long). If you can cope a little easier, then you have more energy to direct at healing.
Healing is slow, and an unsteady process. And frustrating. A lot of times it's 1 step forward and 3 steps back. (Just went through that this week, myself!) But hang in there. Over time, there is a net gain. There is a net improvement. And feeling better is so worth it, OMG ... even just a teeny tiny bit feels so good!!!
As you recover, you will regain your memory, you will become less irritable, and you will get your energy back. It is gradual, but it does happen.
Hope this helps to offer you hope. You deserve hope. :) You deserve to get better. Hang in there and try to be patient with yourself. (I know, easier said than done -- but practice it. Keep trying. We are all our worst critics. We are merciless with ourselves -- that's another symptom! Take it easy. You deserve a break!!)
Bailey