What factors are medication dosages for children based on?

Medication dosages for children are primarily based on weight because a child's metabolic rate and body composition differ significantly from adults. Weight is a critical determinant in calculating the correct dosage to achieve optimal therapeutic effects while minimizing the risk of side effects. This approach ensures that medications are administered in proportional amounts that are safe and effective for a child’s size and physiological requirements.

While age, height, and family history can influence a child's health and response to medication, weight is the standard and most reliable factor for determining exact dosages. Weight-based calculations help healthcare providers account for the individual's unique physiology, allowing for more precise and individualized treatment.