No question, I just wanted to post some of an article regaurding the effects of opiates on RLS (the full text can be found on John Hopkins university website.
Dr. Willis (as in Willis-Ekbomb disease / RLS) in his description of this disease in 1685 also reported on the benefits of opiates for treating the symptoms. Thus for over 300 years opiates remained the only truly effective treatment for this disease. This category of medications includes codeine, hydrocodone, oxycodone, morphine, hydromorphone, methadone, buprenorphine and pentazocine.
An estimated 85 percent to 90 percent of patients with RLS will respond very well to opiates. An analysis of drug responses in RLS over a 2 -10 year period showed that 85 percent of RLS patients who started on methadone were still on it compared to less than 20 percent of those started on a dopamine drug. The median starting dose for methadone in this study was 10 mg per day with a range between 2.5 mg and 20 mg per day.