my mother just recently is recovering from being on life support with fluid build up and double pneumonia about a month and a half ago.. she also just had a small bout with pneumonia a week ago. the psychiatrist prescribed her 2 mg of Xanax to make her sleep since her sleeping pattern is to where she stays up most of the night and doses off and on during the day... is that to much at one dose considering her lung issues? could she get too relaxed and aspirate?