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neuroleptic malignant syndrome

Neuroleptic malignant syndrome (NMS) is a rare but potentially life-threatening syndrome that can emerge in response to neuroleptic medications, such as tetrabenazine or deutetrabenazine. Neuroleptic medications, also known as antipsychotics, are broadly used to treat confusion and agitation and allow for normal movement. Symptoms of NMS include mental status change, rigidity, fever, and autonomic dysfunction.