muscle spasm
"Zanaflex was working well for my lower back which has been an issue since a car accident in Oct of 2013. This has progressed to a point where I am waiting for an M.R.I.  During the last 3 months I have been dealing with spasms in my left leg that went from annoying and limiting my ability to move around slightly to full blown, unbelievably painful leg spasms.  The medication is no longer working.   I am going to call my doctor on Monday and ask about Soma since it seems to have a much better score when it comes to stopping spasms."