Neuroleptic Malignant Syndrome
A rare but potentially life-threatening reaction to antipsychotic or other dopamine-blocking medications, involving severe muscle rigidity, fever, and autonomic instability.
Overview
Neuroleptic malignant syndrome is a rare but potentially life-threatening condition that can occur after exposure to antipsychotic or other dopamine-blocking medications, involving severe muscle rigidity, high fever, altered mental status, and autonomic instability.
Signs and Symptoms
Symptoms can include severe muscle stiffness, high fever, confusion, rapid heart rate, and unstable blood pressure, typically developing within days of starting or increasing a dopamine-blocking medication. Experiencing one or more of these symptoms does not necessarily mean that a person has this condition. Diagnosis requires an appropriate clinical evaluation.
Causes and Risk Factors
Neuroleptic malignant syndrome is caused by a severe reaction to medications that block dopamine receptors, most commonly antipsychotic medications.
Diagnosis
A diagnosis should be made by a qualified healthcare professional following a comprehensive clinical assessment. Clinicians may use established diagnostic frameworks such as DSM-5-TR and/or ICD-11 as part of a comprehensive assessment.
Treatment
Treatment depends on the individual’s symptoms, clinical history, severity, age, co-occurring conditions, and other relevant factors.
Psychotherapy
This is a medical emergency and does not involve psychotherapy during the acute phase; treatment occurs in a medical setting.
Medication
Immediate discontinuation of the causative medication and supportive medical care, sometimes including specific medications, are required in a hospital setting. Medication decisions should be made with a qualified prescribing healthcare professional. Do not start, stop, or change a prescribed medication based solely on information on this page.
Living With Neuroleptic Malignant Syndrome
This is a medical emergency; if these symptoms occur, seek immediate assistance through appropriate local emergency services.
When to Seek Professional Help
Professional evaluation may be appropriate if symptoms persist, worsen, cause significant distress, or interfere with work, school, or relationships.
Emergency Situations
If a person may be in immediate danger, is experiencing a medical or psychiatric emergency, or may harm themselves or another person, seek immediate assistance through appropriate local emergency services.
Outlook
With prompt recognition and treatment, most individuals recover, though the condition can be fatal without timely medical care.
Related Conditions
Medical Information Disclaimer
Ratel Health provides general educational information and does not provide medical diagnosis, treatment, or individualized medical advice. Information on this page is not a substitute for evaluation or care from a qualified healthcare professional. Do not use this information to diagnose yourself or another person, or to start, stop, or change treatment or medication without consulting an appropriately qualified healthcare professional.
References
- American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR).
- National Institute of Mental Health.
- U.S. Food and Drug Administration.
- World Health Organization. International Classification of Diseases, 11th Revision.