There is research out there indicating that Lithium may be moving into clinical trials for Parkinson's (keeps proteins from accumulating) and may be neuroprotective for HD too. I was wondering if anyone knows a person with bipolar being treated with Lithium and also has HD...

Sorry it took eight months for the answer but yes. I do. My mother is bipolar (from her mom) and has huntingtons from her dad. My mom is on another bipolar medication similar to lithium and hasn't gotten worse over the past four years. The neurologist says she has no symptoms for huntingtons yet and all of her symptoms are from being bipolar, but at least she hasn't gotten worse!