Child dose by Cowling's rule

6. Patient-based Dose 6.1) Pediatric dose 6.1.3) Cowlingís rule

6.1.3.1) Child dose based on age Easy 1


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Adult dose of a novel drug is 50 mg. How many milligrams of this medicine is suitable for a 4 year old Child?


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lb equals 10.42 mg kg

Here Adult dose = 50 mg
Age = 4 year

Cowling's rule for child, based on age:

Child dose ` =(AGE \quad AT \quad NEXT \quad BIRTHDAY \quad )/(24) √ó ADULT \quad DOSE \quad (mg)`
`\quad\quad\quad\quad\quad\quad\quad\quad = (4+1)/(24) √ó 50 \quad mg`
`\quad\quad\quad\quad\quad\quad\quad\quad = 10.42 \quad mg` Ans.