What is the name of a small round yellow pill that is blank on one side and says tl 177 on the other side

Not Medical Advice: Small round yellow pill with imprint TL 177 on one side is a Cyclobenzaprine HCL 10 mg. Used to relieve pain and muscle spasms.
Updated on Thursday, February 02 2012 at 01:53PM EST
Collections: spasmthe other side