You may not be able to do too much until you move her to a nursing home. Then you should be able to know exactly what medications she is on. Did they give you are reason for talking her off Alzheimer's medications? Ativan is for anxiety. If she has more of that than she needs, or it's the wrong drug for her, she may become "out of it."

Hopefully, the nursing home staff will be more willing to share information with you. You maybe can find out when their doctor visits and arrange to be there at that time. Nursing homes often have a Physician's Assistant who is more accessible than the doctor, so that could be the route to go. Talk to the nurse and social worker at the home and tell them you need to be informed and you want to work with them on medication for your mother. Make sure they know the changes she experienced when she was taken off the Alzheimer's medications.

Take care of yourself, too. This transition will be hard on you and your mother, but it should  be for the best.

Carol