Skip to content
My WebMD Sign In, Sign Up

Brain & Nervous System Health Center

Font Size
A
A
A

Signs of Neuroleptic Malignant Syndrome

Neuroleptic malignant syndrome is a life-threatening reaction that occurs from taking antipsychotic medications. The exact cause of this syndrome is not known. But it may occur when antipsychotic medicines cause a person's body temperature regulating center to function improperly.

The first signs of neuroleptic malignant syndrome include:

Recommended Related to Brain & Nervous System

Pontocerebellar Hypoplasia

Important It is possible that the main title of the report Pontocerebellar Hypoplasia is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.

Read the Pontocerebellar Hypoplasia article > >

  • High fever, between 102°F (38.89°C) and 103°F (39.44°C).
  • Fast and/or irregular heartbeat.
  • Rapid breathing.
  • Severe sweating.

If treatment is not sought, more severe symptoms develop and include:

  • Tight and inflexible muscles.
  • Changes in alertness.
  • Blood pressure changes (either lower or higher than normal).
  • Shakiness.
  • Seizures.

People with neuroleptic malignant syndrome who do not get treatment can die from complications of the syndrome. Complications include absence of breathing, kidney failure, and life-threatening body fluid and chemical imbalances.

Sometimes people who have a fever and changes in their heart and breathing patterns think they have the flu. People who take antipsychotic medicines and develop these symptoms need to be seen by a health professional.

By Healthwise Staff
Primary Medical Reviewer Kathleen Romito, MD - Family Medicine
Specialist Medical Reviewer Miklos Ferenc Losonczy, MD, PhD - Psychiatry
Last Revised August 19, 2010

WebMD Medical Reference from Healthwise

Last Updated: August 19, 2010
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

Today on WebMD

Depressed
Slideshow
3d scan of fractured skull
Slideshow
 
human brain waves
Article
brain maze
fitQuiz
 
senior man
Article
brain research briefing
Article
 
Syringe
Article
graphic of human head
Article
 
mans hands on laptop keyboard
Article
brain illustration stroke
Slideshow
 
most common stroke symptoms
Article
Parkinsons Disease Medications
Article