periodic limb movement disorde
"It helps my stimulus sensitive myoclonus. 10 out of 100,000 persons have this condition. It is caused by a flu virus and when I do not take it I have a jerking of the head. One can get the jerking in the arm, leg, diaphragm. This medicine takes away all the jerking movement.  I have a movement disorder since I have been 2 years old and when I take this medicine, I am perfectly normal. At the age of 2 years old I caught a flu virus and had to learn to re-walk and re-talk. I have above average intelligence.  I have been on this medicine since 1985. I have no anger fits, or anxiety or other things people take this drug for, just stimulus sensitive myoclonus."