Oxcarbazepine
"Do NOT stop taking this medication. I was out of state and ran out of it (poor planning on my part). I realized I was going to run out so I started titrating downwards. The results were immediate, and unexpected.  Essentially I went into 'withdrawal' (in the psch world labeled 'discontinuation syndrome'). It was very unsettling.  When I finally returned to my home state I had to double my dose for a while to feel 'normal'.  "