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August 1, 1978Clinical Pharmacology & Therapeutics

Spironolactone‐induced changes in digoxin kinetics

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Why the study?

Does spironolactone treatment alter digoxin kinetics in human subjects?

Population

8 subjects

Comparison

Long-term treatment with spironolactone vs Same subjects prior to spironolactone treatment

Design

Cohort

Authors

SWStig WaldorffGentofte HospitalJAJens Damgaard AndersenNHNiels C Heebøll-Nielsen

Discussion

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Implication

Alerts to possible digoxin-spironolactone interaction; leaves open need for randomized dose-adjustment trials.

Structured PICO

Does spironolactone treatment alter digoxin kinetics in human subjects?

P
Population
8 subjects
I
Intervention
Long-term treatment with spironolactone
C
Comparator
Same subjects prior to spironolactone treatment (baseline)
O
Outcome
Changes in digoxin kinetics (plasma clearance, volumes of distribution, and renal and extrarenal clearances)surrogate

Co-administration of spironolactone significantly alters digoxin pharmacokinetics, suggesting a need for reduced digoxin loading and maintenance doses to prevent toxicity.

Cite This Study

Waldorff et al. (1978) studied this question.

synapsesocial.com/papers/6a86bc9f37e82e140d153ee7https://doi.org/10.1002/cpt1978242162
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Also Consider

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  1. 1Digoxin-quinidine-spironolactone interaction1984 · 38 citations
  2. 2Renal Tubular Secretion of Digoxin1974 · 185 citations
  3. 3Population‐Based Investigation of Relative Clearance of Digoxin in Japanese Patients by Multiple Trough Screen Analysis: An Update1997 · 45 citations
  4. 4Changes in Steady State Digoxin Pharmacokinetics during Quinidine Therapy in Cardiac Patients: Influence of Plasma Quinidine Concentration1983 · 7 citations
  5. 5Effect of physical activity on the day‐to‐day variation in serum digoxin concentration1994 · 3 citations