I have found medical marijuana to be the only thing to reduce my spasms. And really the pain. I also had the baclofen trial which thankfully went better then planned I'll have the permeant one implanted oct 5. I use a vaporizer to medicate since it is 100x better then smoking it. I've found eating it does not work as well.
I hope you find relief in your spasms. They are the worst. You'll be in my prayers.