muscle spasm
"Works better than Oxycontin. I have chronic chest pain from pluracy and this medicine allows me to be pain free most of the time. Recently I ran out for 3 days and I had terrible withdrawal symptoms. I have been on it for 2 years and I don't abuse it. I only take 1/2 a pill about 6 or 7 times a day to decrease the sleepiness. It like all other controlled drugs is a double edged sword so be careful of withdrawal. "