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Neuroleptic Malignant Syndrome

Neuroleptic malignant syndrome is a life-threatening reaction that may occur as a result of taking certain antipsychotic medicines. The exact cause of this syndrome is not known, but it may occur when the medicine causes a malfunction in the system that regulates the body's temperature.

The first signs of neuroleptic malignant syndrome include high fever and changes in a person's heart and breathing patterns. People who take antipsychotic medicines and develop these symptoms need to be seen immediately by a health professional.

Last Revised: August 19, 2010

Author: Healthwise Staff

Medical Review: Kathleen Romito, MD - Family Medicine & Miklos Ferenc Losonczy, MD, PhD - Psychiatry

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