My husband has advanced Parkinson's disease. He is in a psych center and I believe got worse. They gave him Atavan for four weeks and his psychotic symtoms seem to get worse. They also gave him Quetiapine and donepezil. They changed his meds 5 days ago and are now giving him Olanzapine (Zyprexa) and Clonazepam (Klonopin). He was agitated for four weeks and since the change he looks entirely out of his mind.