guanfacine, hasn't been proven effective for adult ADHD, I don't think.

Worst Risperidone probably blocks the actions of Guanfacine on the alpha-2a adrenergic receptor. In theory Risperidone could block any beneficial effect of Guanfacine.

It seems like your doctor is primarily treating you for depression and anxiety type problems. What he hopes the Guanfacine to achieve is anyones guess.

I doubt he will prescribe you a stimulant.