Dose range by body weight

6. Patient-based Dose 6.2) Body Weight 6.2.1) Body weight General

6.2.1.1) Drug dose based on body weight Easy 1


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What would be the usual range for a adult weighting 109 lb if the usual dose of a antineoplastic drug for adult between 25 y to 85 y of age is 2 to 52 mg/kg of body weight?


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lb equals 98 mg - 2600 mg kg


  • Simple DA method for 2 mg drug
`(2 \quad mg)/(1\quad kg) × 109 \quad lb × (0.454\quad kg)/(1\quad lb)` = 98.972 mg


  • Simple DA method for 52 mg drug
`(52 \quad mg)/(1\quad kg) × 109 \quad lb × (0.454\quad kg)/(1\quad lb)` = 2573.272 mg


Therefore, range is from 98.972 mg to 2573.272 mg actually, literatures round these numbers and express as 98 mg to 2600 mg