What is cyclobenzaprine? Cyclobenzaprine is a muscle relaxant. It works by blocking nerve impulses (or pain sensations) that are sent to your brain. Cyclobenzaprine is used together with rest and physical therapy to treat skeletal muscle conditions such as pain or injury. Cyclobenzaprine may also be used for purposes not listed in this medication guide.… Continue reading What is the important information I should know before I take Cyclobenzaprine ?