Acetaminophen dosages

Age:
>2 mo. (5kg): 80mg per dose
>4 mo. (6.5 kg): 100mg per dose
>6mo. (8kg): 120mg per dose
>12mo. (10kg): 160 mg per dose
>2 years (13kg): 200mg per dose
>3 years (15kg): 240mg per dose
>5 years (19kg): 280mg per dose

well-hydrated child: 15 mg/kg q4-6hrs
dehydration risk: 10 mg/kg q4-6hrs
maximum: 90 mg/kg/day (up to 4 grams daily)