Neuroleptic malignant syndrome
Neuroleptic Malignant Syndrome I. What every physician needs to know. Neuroleptic malignant syndrome (NMS) is a rare, potentially fatal complication of treatment with dopamine antagonists (e.g., neuroleptics such as haloperidol) or less commonly acute withdrawal of dopamine agonists (e.g., Parkinson’s medications such as carbidopa-levodopa). The classic clinical presentation is a tetrad of fever, muscle rigidity,…