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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Determine the dosage range of digoxin for a 23 month old infant where the weight of the infant is 12.20 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 134.20 mcg - 219.60 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)/(12.20 Kg) `

    Therefore `x` = 134.2 mcg



  • High dose: `(18 mcg)/(x)` = `(1 Kg)/(12.20 Kg) `

    Therefore `x` = 219.6 mcg

    Hence the dosage range for digoxin is
    134.2 mcg - 219.6 mcg
    Ans.