Bedwetting on Risperdal

My daughter is 11 and she has been on risperdal for a long time. We have started a new drug called intuniv for her and is working great so far. We are weaning her off risperdal, prozac, and a lower dosage of concerta. I use to give her 1mg at night of risperdal now I am giving her .5mg and have noticed her urinating the bed at night and the night before I put her to bed she is really thirsty.
The goal is to get her off all these other meds and she would be only on intuniv 2mg, concerta 18mg, and depakote 500mg. Her doctor has told me to slowly reduce the night risperdal which I have but when I do give her the dosage she urinates the bed. I am not too sure what to say with my child never bed wetting before.