Slippery Elm is a herbal preparation, I believe the powdered inner bark of the Slippery Elm tree. You can get it without a prescription, usually at the health food store, but maybe at some drug stores. It's not a "strong" sort of med, but if it works for you, great. I don't know anything bad about it.
I was only relatively recently diagnosed with Asperger's, but I've known since forever that I'm a depressive, and I take a combination of Zoloft and Pamelor for that (only in the winter), and they work. When the doctor and I were finding out what works, though, I tried several different antidepressants, one with a dangerous side effect, one that just put me to sleep (might have worked, but I couldn't afford to sleep 20 hours a day!
) and some that just didn't do anything. None of the antidepressants ever did stop the panic attacks, and that original doctor gave me Xanax to take just when I could feel one coming on (takes the pill about half an hour to work, and sometimes they just land on me out of the blue, but I can live with half an hour of it: I've lived through a lot of them without any med). I'm not on Xanax most of the time, sometimes for long periods the panic attacks are few and far between. It makes life a lot easier, though, even though when I've had one I'm too "drunk" to feel safe driving, but then I wouldn't feel safe trying to drive with a panic attack going, either!.
But the medication guy at the Mental Health Center said there was nothing he could do for me by the way of scripts for the Asperger's. I gather that Ritalin sometimes helps young kids focus in school -- wouldn't know, myself, and when I was a young kid, I was an (undiagnosed, of course) Aspie, but didn't have any trouble focusing in school.