Acute-Onset Dystonia Following Ashwagandha Supplementation (Withania somnifera): A Case Report

Ashwagandha (Withania somnifera) is a widely used herbal supplement with established adaptogenic and neuroprotective properties. Although generally considered safe, rare adverse neurological effects may occur. We present the case of a previously healthy adult male who developed acute-onset dystonia following the initiation of Ashwagandha supplementation. The patient exhibited sustained involuntary muscle contractions and abnormal posturing shortly after commencing the supplement. Extensive diagnostic evaluation failed to identify an alternative etiology. Discontinuation of Ashwagandha and initiation of symptomatic treatment led to the resolution of symptoms. This case underscores the importance of considering herbal supplements as potential contributors to neurological presentations.