Child dose by young's rule

6. Patient-based Dose 6.1) Pediatric dose 6.1.2) Young’s rule

6.1.2.1) Child dose calculation Easy 1


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An over-the-counter cough remedy contains 600 mg of dextromethorphan in a 60-mL bottle of product. The label states the dose as 1`1/2` teaspoonfuls for a child 5 years of age. How many milligrams of dextromethorphan are contained in the child’s dose?


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lb equals 176.47 mg kg

Here Adult dose = 600 mg
Age = 5 yr

Young’s rule, based on age:

Child dose ` =(AGE)/(AGE + 12) Ă— ADULT \quad DOSE \quad (mg)`
`\quad\quad\quad\quad\quad\quad\quad\quad = (5)/(5 + 12) Ă— 600 \quad mg = 176.47 \quad mg` Ans.