Hi
I just wanted to agree with what Adam and Lara have suggested as it really does *not* seem that this doctor has evaluated and monitored your son sufficiently to make a diagnosis of TS, nor to be prescribing the strong drugs at this point.

Does your child have any history of strep infection? I ask because a condition known as PANDAS (pediatric autoimmune neuropsychiatric disorders associated with streptococcus) can mimic TS in some ways, but requires very different treatment. When onset of the neuropsychiatric symptoms seems sudden, and if there is a history of strep, it is worth checking into

Here are 2 sites that explains PANDAS http://www.pandasresourcenetwork.com/
http://pandasnetwork.org/

There is also growing evidence that Lyme Disease (from tick bites) can also mimic extreme TS symptoms

I am not saying your child does not have TS, but just that given the symptoms your describe, I would investigate other possibilities before putting him on those drugs