Dementia is a very specific condition; what *may* be happening is a bad reaction to a combination of drugs that, individually, may be safe but when combined may be at the root of some of these symptoms. When you get up there, find out from your mom EXACTLY what he has been taking, both perscription AND non-perscription, and then find a GOOD pharmacist that you can trust to go over the list with you and see if there are any reports of negative reactions to the interactions of the medications. Best of luck with it. If you can't find anyone up there you trust, I've got some friends in the medical field who I can ask here if you can get me the specific details. It may be as simple as changing a dosage, or a medication to some alternative that eliminates the problem. Hopefully, anyway.