My nine year old son Jacob, was diagnosed with TS. It came on fast and furious. Right now we are just starting with trying to find a drug that will help him, right now he's on Keppra, we just increased it to 3 times per day 2.5 ml in morning and lunch and 1.5 in evening. I'm not even sure if it's working or not. My son has complex vocal ticks (very loud) What seems even worse is his behavior at school, especially in the afternoon at school during science and math, he talks and talks and jokes around while the teacher is trying to teach a lesson. He is very disruptive in class. He never used to behave this way. I'm wondering is it the TS, I know ADHD is common with it. I'm not sure his behavior is ADHD. He still does well in school. Could his behavior be a reaction from the Keppra? Has anyone had a similar experience?