Restless Legs Syndrome 6, also known as restless legs syndrome, susceptibility to, 6, is related to restless legs syndrome and restless legs syndrome 7. An important gene associated with Restless Legs Syndrome 6 is RLS6 (Restless Legs Syndrome, Susceptibility To, 6). The drugs Dopamine and Iron have been mentioned in the context of this disorder. Affiliated tissues include brain and spinal cord.