Digoxin dosage

6. Patient-based Dose 6.4) Disease state 6.4.1) Disease State

6.4.1.2) Digoxin dose Easy 1


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Using the given data, calculate the dosage range for digoxin for a 3 month old infant weighting 6.34 Kg
Age Digoxin Dose
(mcg/kg/day)
Premature 4 – 8
Full term 7 – 11
1 – 24 mo 11 – 18
2 – 5 y 9 – 13
5 – 10 y 6 – 11
Over 10 y 3 – 5


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lb equals 69.74 mcg - 114.12 mcg kg


This ped patient falls in the marked group.

Age Digoxin Dose
(mcg/kg/day)
1 - 24 mo 11 – 18


  • Low dose: `(11 mcg)/(x)` = `(1 Kg)/(6.34 Kg) `

    Therefore `x` = 69.74 mcg



  • High dose: `(18 mcg)/(x)` = `(1 Kg)/(6.34 Kg) `

    Therefore `x` = 114.12 mcg

    Hence the dosage range for digoxin is
    69.74 mcg - 114.12 mcg
    Ans.