My pcp prescribed cyclobenzaprine back in April for herniated discs in my neck. I'm not sure if they help with the pain or not, I take them at bed time with my gabapentin and the combo knocks me out! My ruemotologist wouldn't perscribe them for my fibro (I asked) because she said even though fibro affected the muscles it was due to nerves in the muscle not the muscle itself.
I might try taking one during the day with out my gabby (when I don't have anything on my agenda) and just see for myself if it helps my fibro...lol curiosity always kills this cat!