Pediatric Dosage Rules/ Learn
Amie Bedgood, Austin Community College

Fried's Rule

Fried's Rule is another method used to calculate the correct dose of medication for the pediatric patient when given only the adult dose. This method should not be considered as accurate as the nomogram method because it is based on the assumption that the child is of average size and utilizes age rather than weight. It is important to note that because age does not necessarily indicate the patient's weight, medication adjustments may be necessary once the patient's response is determined.

Fried's rule is a method of estimating the dose of medication for a child by dividing the child's age in months by 150 and multiplying the result by the adult dose.

Pediatric dose =
child's age in months
x Adult Dose


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