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Clozapine (Clozaril), seizures, and EEG abnormalities
Diane M White1, Anne C Van Cott
1Veterans Administration Pittsburgh Healthcare System Pittsburgh, Pennsylvania, USA.
American Journal of Electroneurodiagnostic Technology
|November 7, 2007
Summary
Clozapine, an antipsychotic for refractory psychosis, can cause neurological symptoms and EEG changes. Reducing clozapine dosage may resolve these adverse effects in patients.
Area of Science:
- Neuroscience
- Pharmacology
- Clinical Neurophysiology
Background:
- Clozapine is an essential antipsychotic for treatment-resistant schizophrenia.
- Its use is limited by potential side effects, including neurological impacts.
- Awareness of clozapine's effects on electroencephalography (EEG) is crucial for specialists.
Observation:
- Two patients on clozapine therapy developed neurological symptoms.
- These patients also exhibited significant EEG abnormalities.
- Symptoms and EEG changes resolved after clozapine dosage reduction.
Findings:
- Clozapine can lower seizure threshold and alter EEG patterns.
- Neurological symptoms and EEG abnormalities are potential adverse effects.
- Dosage adjustment of clozapine can mitigate these effects.
Implications:
- Clinical neurophysiology technologists and electroencephalographers must recognize clozapine's EEG effects.
- Monitoring EEG is important for patients on clozapine therapy.
- This highlights the need for careful patient management and dosage titration.
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