@daisy17 One post from you gives me more info than I’ve gotten in a year from my doc (I just switched for that reason)! I take Zanaflex at night for muscle pain and have for years. Flexoril has never been mentioned as an option for my severe fibromyalgia pain. My neurosurgeon prescribed it for back pain until I could have surgery but I’m going to ask my new doctor what she thinks, as well as Naltrexone, which I’ve never even heard of! Thank you so much.😊