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Digoxin: clinical highlights: a review of digoxin and its use in contemporary medicine
Michael Ehle1, Chandni Patel, Robert P Giugliano
1From the Departments of *Pharmacy and †Cardiovascular Medicine, Brigham and Women's Hospital, Boston, MA.
Insights
Optimizing digoxin dosing using patient factors like age, weight, and kidney function is key. Recognizing digoxin overdose and using digoxin immune globulins ensures safe and effective cardiac care.
Area of Science:
- Cardiology
- Pharmacology
Background:
- Digoxin is a long-standing cardiac medication with complex pharmacokinetics.
- Its narrow therapeutic index presents challenges in managing atrial arrhythmias and heart failure.
Purpose of the Study:
- To outline strategies for safe and effective digoxin use.
- To emphasize patient-specific dosing and recognition of toxicity.
Main Methods:
- Review of digoxin's pharmacokinetic profile.
- Analysis of factors influencing digoxin efficacy and toxicity.
- Guidance on recognizing and managing digoxin overdose.
Main Results:
- Patient-specific dosing (age, lean body weight, renal function) minimizes toxicity.
- Early recognition of digoxin overdose is crucial for timely intervention.
- Digoxin immune globulins are effective in reversing toxicity.
Conclusions:
- Understanding digoxin's properties is essential for safe clinical practice.
- Personalized digoxin dosing improves patient outcomes.
- Effective management of digoxin toxicity enhances patient safety.
Abstract:
Digoxin is the oldest cardiac medication used in contemporary medicine. With a complex pharmacokinetic profile and narrow therapeutic index, its use in managing patients with atrial arrhythmias or heart failure can present a challenge to today's clinicians. Digoxin dosing based on patient-specific factors such as age, lean body weight, and renal function will allow practitioners to minimize drug toxicity while maintaining clinical efficacy. The ability to recognize digoxin overdose, which can manifest in both the acute and chronic settings, helps guide the appropriate dosing of digoxin immune globulins to reverse toxicity. Understanding this unique medication is essential for clinicians to ensure digoxin is used safely and effectively in practice.
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