I was truck driver, had to go more than 85 miles in an hour. This work schedule made me a patient, back pain and neck pain began to disturb me. I started to consume Flexoril and a muscle pain killer , but of no use. Then I moved to Zanaflex and I would recommend this to all have this problem. It was just amazing and reduced my pain with in a short period. I have no side effects with this medication and I decided to continue this for a month.