Trigger drug |
Drug with serotonergic effect |
Drug with dopaminergic
effect, often antipsychotics |
Onset |
Onset usually within 24 hours |
Onset over days to
weeks |
Remission of symptoms |
Rapid remission following discontinuation of the
trigger drug |
Gradual remission following discontinuation of the
trigger drug |
Neurological symptoms
|
Neuromuscular hyperactivity: Tremor, clonus, hyperreflexia
|
Neuromuscular hypoactivity:
Extrapyramidal symptoms; hypokinesia and lead tube rigidity
|