GreggJ1978

Like i said, there are probably "multiple different causes". The histamine gene being one. They showed in rat's low histamine causes tic like behavior's, so I think it's pretty safe to say that's one cause, or at least partially the cause, even if it is in a small minority of tourettes patients. As far as natural antihistamine's, I take omega 3 every day, and I use to take Vitamin C, none of which help my allergies or tic's. Haven't given the other ones you mentioned a try though.

Benadryl and Zyrtec make my tic's go crazy. So do allergie's though. I'm trying Claritin right now. Hopefully it work's. Not sure if any of you heard of the study that showed a histamine gene is associated with tourettes. The mutated version of the gene doesn't seem to pump out enough histamine. So it make's sense that any drug's that lower histamine can cause tic's in some people. If anyone is interested just type in "histamine gene" and "tourettes" on google. They say there are probably multiple different causes though.