Tizanidine
muscle spasm
"I was put on this medicine at the beginning of Nov., 4mg. eight hrs apart, for severe muscle spasms in my spine. Prior to that I'd been on Robaxin. So far, it only seems to last about 3 hrs in terms of relief/prevention of these spasms.
I asked to change from the Robaxin since it didn't seem to be working after taking it for about 2 yrs and had read/seen a lot of good reviews on it.

Unfortunately, my provider doesn't like to switch medicines so more than likely I'll end up just using my heating pad and ice packs for relief.
I'm not getting any side effects from it but that's about the only good thing I can say thus far."