Baclofen
"I was recently diagnosed with atypical torison dystonia. My neurologist wanted me to discontinue 3 of my medications to make sure it wasn't medication induced. So far not making a difference being off them. But he started me on Baclofen 2 weeks ago. I have noticed that it does relax my muscular spasms, but has not seemed to effect the pain much.  I've read it takes time to make its full effect. So far it has helped enough that I'm not in such constant pain. Hopefully it'll continue to get better."