Question: is flexeril used as an antidepressant?
Answer: Cyclobenzaprine is also prescribed off-label to treat fibromyalgia. Cyclobenzaprine works on the central nervous system, blocking nerve impulses (or pain sensations) that are sent from sore muscles to your brain. Cyclobenzaprine is chemically related to a class of antidepressants called tricyclic antidepressants.