It could be just be akathesia or something temporary that will go into remmission. As for tardive, what is used is Bachophen, Mirapex,
Aricept, Requip and Bachophlen, Botox shots as needed, Clonidine or Tenex, Tetrabenzene, Inderal or Atenolol, Zofran as I've found from clinical studies and the natural remedy rhodiola from clinical studies.
However, if a person has movement disorders from these medications please check to see if they are temporary first.