Use the Mosteller formula to calculate body surface area (BSA): BSA (m²) = √[(height (cm) x weight (kg)) / 3600]. Then, apply the appropriate amoxicillin dose based on BSA. For example, a common dosage is 25-50 mg/kg/day divided into two or three doses. Let’s say a child weighs 15 kg and is 100 cm tall. Their BSA is approximately 0.8 m². If we use a dose of 40 mg/kg/day, that’s 600 mg per day. Divide this across two doses, resulting in 300 mg every 12 hours.
Always consult the prescribing information for the specific amoxicillin formulation you are using. The recommended dosage may vary based on the formulation, the child’s age, the infection being treated, and renal function. Precise calculation is key for safe and effective treatment.
Remember, BSA is just one method for calculating pediatric dosages. Your doctor or pharmacist will use the child’s weight, age, and specific clinical condition to determine the correct dosage.
Always double-check your calculations to avoid errors. Use a reliable BSA calculator if available. Never administer medication without a doctor’s prescription. If you have questions or concerns, seek guidance from a healthcare professional.
