How is the dosage of medication determined for children?

Determining the dosage of medication for children is primarily based on weight. This is because children's bodies metabolize drugs differently compared to adults, and their smaller body mass means that a dosage calculated solely on age might not provide the therapeutic effect needed or could lead to toxicity.

Using weight as a basis for calculating medication dosage allows for a more individualized approach, ensuring that each child receives a safe and effective amount tailored to their specific physiological characteristics. For example, a common formula used in pediatric dosing is mg/kg, where the medication dosage is calculated according to the child's weight in kilograms.

While age, previous medical history, and other factors may play a role in the overall clinical decision-making process, the most accurate and safest method for determining medication dosage specifically is through the child's weight. This approach helps avoid the risks associated with underdosing or overdosing.