Acute dystonia resulting from abrupt bupropion discontinuation.

Acute dystonia is commonly associated with high-potency antipsychotics. Some cases of acute dystonia had been reported to be associated with antidepressant. However, only few reported cases are related to bupropion. As reported herein, the patient with major depression suffered from acute dystonia twice, which resulted from abrupt bupropion discontinuation. The first episode occurred when medicament was shifted from bupropion to duloxetine abruptly. The patient was requested with nothing per mouth (NPO) due to panendoscopic examination. Therefore, the second one emerged after the patient was suspended from two doses of bupropion. The symptoms of dysphagia, trismus and torticollis in these two episodes were resolved after bupropion reinstitution or biperiden injection. So far as we know by our documents, this is the first report concerning an acute dystonia resulting from bupropion discontinuation.