Methocarbamol
"I'm not sure why this medicine is referred to as the "poor man's Soma" because I was taking Soma and my Doc prescribed this for better and longer lasting relief.  I am a 6'2" 300 lb bodybuilder and Soma wasn't doing anything.  I took this for the first time last night, and it worked!  I was out for 45minutes, combined with Elavil. Got off the recliner, and went to bed at 1030 and woke up this morning without back spasm pain. I'll be taking it this morning to prevent the onset of spasms and to gauge how to tolerate during the day."