Possible. Can have wt gain with resperdal but this is not s common side effect--watch carbs look 4 other possible causes.
Dispersal & Wt gain. I have had many patients gain excessive weight on risperdal. I try and switch the person to geodon, (ziprasidone) if possible, when that happens. I also use the medication metformin, which is indicated for diabetes. I find metformin helps with the weight gain which can help prevent diabetes. Other helpful medications are Naltrexone and topiramate. All need careful monitoring.