Digoxin Dose Calculator (AF Rate Control & HF)

Calculates digoxin dosing for atrial fibrillation rate control (0.125–0.25 mg/day) and rapid digitalization for heart failure (loading: 0.25 mg IV/PO q6h × 4 doses). Goal trough level: 0.5–0.9 ng/mL for heart failure. Check levels 6–8 hours after last dose. Adjust for renal function, weight, and age. Narrow therapeutic index requires close monitoring.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How to Use

Enter the values for the scenario you are assessing. Calculates digoxin dosing for atrial fibrillation rate control (0.125–0.25 mg/day) and rapid digitalization for heart failure (loading: 0.25 mg IV/PO q6h × 4 doses). Goal trough level: 0.5–0.9 ng/mL for heart failure. Check levels 6–8 hours after last dose. Adjust for renal function, weight, and age. Narrow therapeutic index requires close monitoring. Use the digoxin dosing result to inform your calculation.

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