My Mother and Daddy both have dementia. We have caregivers staying with them 24 hours a day. Mother starts spitting as soon as she gets up in the morning. At first she would just spit into the trashcan sitting beside her, but now she has begun to spit on the floor or into the cup containing her beverage. We recently stopped the oxybutinin that she was taking thinking that it might be drying her out ... but it hasn't helped. It is almost constant. Has anyone else experienced this behavior?