What question did this study set out to answer?

Investigate the relationship between chlorpromazine-induced extrapyramidal side effects and clinical therapeutic efficacy in patients with schizophrenia.

August 1, 1978The British Journal of Psychiatry

The Neuroleptic Hypothesis: Study of the Covariation of Extrapyramidal and Therapeutic Drug Effects

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Authors

MAMurray AlpertColumbia University Irving Medical Center FDFlorence Rand Diamond JWJochanan M. WeisenfreundBronx Psychiatric Center

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Implication

Clinical trial reveals an inverse link between drug-induced tremor and symptom relief in schizophrenia, challenging traditional neuroleptic hypotheses.

Key Points

Investigate the relationship between chlorpromazine-induced extrapyramidal side effects and clinical therapeutic efficacy in patients with schizophrenia.
Conducted a therapeutic trial of fixed-dose chlorpromazine in recently admitted patients with schizophrenia matched for age and sex.
Quantitatively analyzed digital tremor after four days of treatment to assess extrapyramidal effects.
Evaluated psychiatric improvement using the Brief Psychiatric Rating Scale (BPRS) after four weeks of therapy.
Patients whose digital tremor was least affected by chlorpromazine experienced the greatest therapeutic symptom improvement.
The negative correlation between motor side effects and clinical recovery directly challenges classic assumptions that therapeutic antipsychotic action requires extrapyramidal disruption.

Cite This Study

Alpert et al. (1978) studied this question.

synapsesocial.com/papers/6a10e87463b25c787d9faee5 https://doi.org/10.1192/bjp.133.2.169

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Implication

Clinical trial reveals an inverse link between drug-induced tremor and symptom relief in schizophrenia, challenging traditional neuroleptic hypotheses.

The Neuroleptic Hypothesis: Study of the Covariation of Extrapyramidal and Therapeutic Drug Effects

Discussion

Member takes

Implication

Key Points

Cite This Study

The Neuroleptic Hypothesis: Study of the Covariation of Extrapyramidal and Therapeutic Drug Effects

Discussion

Member takes

Implication

Key Points

Cite This Study

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