Can valproate cause parkinsonism?

THIS PAGE IS STILL UNDER CONSTRUCTION. PLEASE DO NOT USE THIS INFORMATION YET Question from a Member: A 70-year-old man with bipolar I disorder, who is on valproate with mid-60’s blood levels, has developed frank parkinsonism of about one-year duration. This includes a unilateral resting tremor, pill-rolling, and bradykinesia.  He does not have a postural…