I have rls for 18 months, recently, I've been taking B12 methylcobalam 10000 mcg sub lingual it also has b6 and folic acid in it. It has helped me tremendously. I took 4 mg. of ropinirole a day and often times i would still be up at night. So now i take 2 5000 mcg every morning and I am not taking ropinirole and my feet are great and legs. Just try it! It costs me $17.77 on amazon. What your body doesn't use it excretes, so no harm to you. Please I hope all of you give it a try.
Also my b12 blood test and ferritin blood test were normal before I started this vitamin.