I don't mean to sound dumb or anything, but, regular ol magnesium that you can buy at Wal-Mart will work? I really hate to take anything liquid because of the taste. I've had RLS for a long long time. My Dr. did a sleep study and put me on Requip. It works ok, but I still have RLS, just not as much. I would rather take the mag than a prescription. Thanks for the info!!!