Keetmommy,
Is the prozac for depression? Our ds was dx'd with pyroluria just prior to going gluten free. It is a nutrient imbalance that often causes depression among other symptoms. This was in addition to the tics. He also had attention problems and hyperactivity. We began treatment with vitamin/mineral supps but after six months on the gf diet he doesn't need them anymore. His attention and hyperactivity have also subsided. We are also doing a corn free diet, as he tested allergic to corn as well.
I am thinking about starting a support group online for parents of children with tics that choose to treat them through a gluten free diet (some are doing casein too). I have made contact with a handful of people (seven) and hopefully, if they all would like to participate, we could learn from each other. Let me know if you are interested. Just send me a private message.