muscle spasm
"I have been on Skelaxin since 1994 and it is the only medication that has worked for me all these years.  I was in a bad car wreck in '94 and then I was diagnosed with Fibromyalgia.  When I had back surgery in '07 and I was without it for 3 months, I thought I would die.  My surgeon put me back on it and when he did, I started feeling better. It is a great medication for me."