To much can make them agitated.. My husbands neurologist said you have to be careful with that medication because for some reason it can cause people with dementia to stop breathing. He said he doesnt know why but it can.

I don't know if it is common practice for carers elsewhere to change medication whenever they think it is not having the desired effect, but you could be playing with fire unless you get the proper advice. Some meds 'kick in' quite quickly, but can still cause adverse withdrawal symptoms. Perhaps we've been spoilt in the UK, but I would never want the responsibility of which was the best drug for my husband

try giving melatonin for sleeping it worked well for us we have used quatiapine as well we have had no help from our local doctors

Yes email the doctors. As soon as you can

Call her Dr right away.