muscle spasm
"After breaking my back three times, I ended up with ankylosing spondylitis, scoliosis and kyphosis. All major degenerative spinal diseases and cause for great endless pain. Coping is the hard part. I have been on Oxycontin, morphine and several other neural analgesics. All these did was make me nauseous, constipated and robbed me of at least 20 IQ points. Shear tenacity and methocarbamol has given me control over chronic pain with minimal ingestion 500 mg for three days. If I'm still good, carry on till required again maybe in a week or two. Best part I got most of my marbles back again. It has taken 10 years of medicines to finally find methocarbamol and thanks to it I can cope."