what is going on with her? is she being / has she been sexually abused? physically abused? are kids bullying her in school? she sounds DISTRESSED and i'm not sure what medication is going to do except sedate her.

i'd be really concerned indeed about the long term consequences of anti-psychotics on the developing brain. there is some stuff about how they may cause tardive dyskinesias (movement disorder with tics and twitches) and tardive dementias (cognitive degeneration) and i'm sure that is only worse on the developing brain. there is a reason they are called 'minor tranquillisers' methinks.