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Related Experiment Videos

Cardiac toxicity with cisapride

E Farrington

    Pediatric Nursing
    |May 1, 1996
    PubMed
    Summary
    This summary is machine-generated.

    Cisapride can cause serious cardiac arrhythmias, especially when combined with drugs inhibiting cytochrome P450-3A4. This review covers cisapride

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    Area of Science:

    • Pharmacology
    • Cardiology
    • Drug Metabolism

    Background:

    • Cisapride is associated with serious cardiac arrhythmias like ventricular tachycardia and Q-T prolongation.
    • These adverse events are particularly noted in patients co-administered cisapride with CYP3A4 inhibitors.
    • Understanding cisapride's cardiac effects is crucial for patient safety.

    Purpose of the Study:

    • To review the mechanism of action of cisapride.
    • To discuss the metabolism of cisapride, focusing on its interaction with the cytochrome P450-3A4 enzyme.
    • To summarize reported cardiac adverse effects associated with cisapride, particularly with intravenous administration.

    Main Methods:

    • Literature review of cisapride's pharmacology and clinical adverse event reports.

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  • Analysis of drug interaction data concerning cytochrome P450-3A4 inhibition.
  • Synthesis of information on cisapride metabolism and cardiac safety.

    • Main Results:

    • Cisapride's mechanism involves enhancing gastrointestinal motility.
    • Drug interactions with CYP3A4 inhibitors significantly alter cisapride metabolism.
    • Reported cardiac adverse effects include ventricular tachycardia, ventricular fibrillation, torsades de pointes, and Q-T prolongation.

    Conclusions:

    • Concomitant use of cisapride with CYP3A4 inhibitors poses a significant risk for serious cardiac arrhythmias.
    • Awareness of cisapride's metabolic pathway and potential drug interactions is essential for clinicians.
    • Intravenous cisapride administration requires careful cardiac monitoring due to associated risks.