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Chlorpromazine-induced decrease of red cell aggregability

D Costa, M Ghiţescu, I Marcu

    Medecine Interne
    |January 1, 1981
    PubMed
    Summary
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    Chlorpromazine treatment significantly reduced erythrocyte aggregability in patients with psychiatric disorders. This finding suggests potential therapeutic implications for vascular diseases and erythrocyte sedimentation rate (ESR) testing.

    Area of Science:

    • Pharmacology
    • Hematology
    • Psychiatry

    Background:

    • Erythrocyte membrane binding of chlorpromazine may affect cell rheology.
    • Understanding drug effects on blood cell properties is crucial for therapeutic applications.

    Purpose of the Study:

    • To investigate the impact of chlorpromazine on erythrocyte aggregability and deformability.
    • To assess changes in rheological properties following acute and chronic administration of chlorpromazine and haloperidol.

    Main Methods:

    • Filtrability tests were employed to measure erythrocyte aggregability and deformability.
    • Study involved male patients (aged 20-27) with neurosis or personality disorders.
    • Measurements were taken before and after drug administration (chlorpromazine and haloperidol).

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    Main Results:

    • Five-day oral chlorpromazine treatment significantly decreased erythrocyte aggregability (p < 0.02).
    • The effect was more pronounced in patients with initially high aggregability values (p < 0.01).
    • Acute intramuscular chlorpromazine and haloperidol treatment showed no significant rheological changes.

    Conclusions:

    • Chronic chlorpromazine administration alters erythrocyte aggregability, potentially impacting blood flow.
    • The findings may have implications for erythrocyte sedimentation rate (ESR) determination.
    • Further research is warranted to explore therapeutic applications in occlusive vascular diseases.