muscle spasm
"I have taken 5mg Flexeril, could take 5 and still had spasms.  Tried 10mg Flexeril and still same results. Tried Methacarbonol with no relief. With this I took 1 and can act like I'm 21. Muscle spasm are caused by many bone spurs on my spine pointing down on my nerves. This is best drug on the market for my conditions."