<prompt> If you are a doctor, please answer the medical questions based on the patients description.my husband has parkinions he is 86 he has some demencia and has some behavioral problems. The have him on 2 sericquell and it makes him so groggy. They want to change him to 1 pill of zyprexa a day to see if he would be more alert. Do you think think zypreza is good?  <response>: I read your query and I understand your concern. As you seem to understand both Seroquel and Zyprexa are used just to control his behavioral symptoms and do not cure Parkinson or dementia. The trouble with Chat Doctor. For that reason Seroquel was a good choice because it doesnt cause parkinsonism. Olanzapine Zyprexa isnt as safe on that regard, but still little effect on Parkinsons compared to some other antipsychotics, so since Seroquel is causing so much sedation it is a good compromise. Another option is Clozapine which like Seroquel doesnt affect Parkinsons, but I guess doctors fear another possibly serious side effect of it, suppression of white blood cell production. I hope to have been of help. 