| The information below is based on information from the Diagnostic and Statistical Manual of Mental Disorders, 4th Edition, Washington, DC, American Psychiatric Association, 1994. |
A. |
The development of severe muscle rigidity and elevated temperature associated with the use of antipsychotic medication. | |
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B. |
Two (or more) of the following: | |
1. |
diaphoresis | |
2. |
dysphagia | |
3. |
tremor | |
4. |
incontinence | |
5. |
changes in level of consciousness ranging from confusion to coma | |
6. |
mutism | |
7. |
tachycardia | |
8. |
elevated or labile blood pressure | |
9. |
leucocytosis | |
10. |
laboratory evidence of muscle injury (e.g., elevated CK) | |
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C. |
The symptoms in Criteria A and B are not due to another substance (e.g., phencyclidine) or a neurological or other general medical condition (e.g., viral encephalitis). | |
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D. |
The symptoms in Criteria A and B are not better accounted for by a mental disorder (e.g., Mood Disorder with Catatonic Features). | |