Prochlorperazine-Induced Hemidystonia Mimicking Acute Stroke.

Prochlorperazine is frequently used in the treatment of refractory nausea and migraines. Known side effects include extrapyramidal symptoms such as akathisia and dystonia. We report a pregnant patient taking prochlorperazine for hyperemesis gravidarum who developed hemidystonia, which triggered an acute code stroke response from prehospital, emergency medicine and neurology providers. We suspect this report to be the first case of prochlorperazine-induced hemidystonia as a stroke mimic.