I don't know if this will help, but I have chronic myofascial pain syndrome (lots of knots up and down my back). Consequently, I take a muscle relaxer. They also gave me a prescription for Quinine Sulfate (5grams) which both my grandfather and mother used to take for nighttime leg cramps. Recently, my husband, who we suspect has restless leg syndrome, tried taking a Quinine Sulfate capsule and it worked great. I'm told that it's not a "drug" per se and it's safe to take. It may be worth checking out. I know my husband and I both got a decent night sleep that night. Good Luck.