when i was a cna i worked at a facility for traumatic brain injuries. it was sub-acute long term care. while i was there i was exposed to the "ambien study." this is where the drug was given to patients in a coma that was persistent and it was supposed to temporarily reverse the coma. our sister facility had the effects of one resident that this was effective on on tape. our patients would sometimes say a familiar word to family when they were otherwise nonverbal. has anyone heard anything more about this study? when i got my lpn license in 2011 i no longer could work at that facility as there were no nurse openings and i wonder why this study really hasn't been heard of much. i think it's interesting how a sleep aid can reverse a coma even if just temporarily.