What is the best med for post stroke Capgras syndrome?

Thank you! I have read that article. My mother has this & the problem is she thinks my Dad is leaving during the night and entrusting another man/others to stay with her. Gets very angry & hostile. Very bad psychotic thoughts as well. Nights are bad & same reoccurrences.  My Dad is 89 and doing the best he can. So sad for them both.

“.. While there is no treatment for Capgras, there are some techniques that you can use to help reorient your wife and soften the delusions she may be experiencing. You can find a few of them in this article: Capgras Syndrome: How to Cope with a Loved One's Delusions https://www.agingcare.com/articles/Caring-for-a-Loved-One-with-Capgras-Syndrome-197688.htm “. This is from another poster on this site.