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Related Experiment Videos

Alprazolam-related digoxin toxicity.

G Tollefson, T Lesar, D Grothe

    The American Journal of Psychiatry
    |December 1, 1984
    PubMed
    Summary

    Adding alprazolam to digoxin therapy can cause dangerous digoxin toxicity in elderly patients. This drug interaction is linked to reduced kidney clearance of digoxin, necessitating careful patient monitoring.

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    Area of Science:

    • Pharmacology
    • Geriatric Medicine
    • Clinical Toxicology

    Background:

    • Digoxin is a cardiac glycoside used to treat heart failure and arrhythmias.
    • Alprazolam is a benzodiazepine commonly prescribed for anxiety disorders.

    Observation:

    • An elderly patient receiving digoxin therapy experienced a significant increase in serum digoxin levels.
    • This increase in digoxin concentration led to clinical signs of digoxin toxicity.
    • The toxicity occurred shortly after the introduction of alprazolam to the patient's medication regimen.

    Findings:

    • The co-administration of alprazolam and digoxin resulted in elevated serum digoxin concentrations.
    • A potential mechanism for this interaction is the reduced renal clearance of digoxin.
    • This suggests a pharmacokinetic interaction between the two drugs.

    Implications:

    • Clinicians should exercise caution when prescribing alprazolam to patients on digoxin therapy.
    • Monitoring of serum digoxin levels and renal function is crucial in such cases.
    • This interaction highlights the importance of comprehensive medication review in the elderly population.

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