I know this topic has been covered before, but couldn't find the posts. My dr. put me on the capsule form of zanaflex. I'd used it before 5 years ago and it was in pill form and I don't remember any side effects. Ever since starting the new med I can't sleep well- it makes me antsy.. I know one side effect is nervousness. Please let me know of your experiences w/this drug. It seems to help, so I hate to give up on it.