Weight (lbs)Approx. AgeTylenol (Acetaminophen)160 mg/5 mLMotrin (Ibuprofen)100 mg/5 mLBenadryl (Diphenhydramine)12.5 mg/5 mL 6–11 lbs0–3 monthsCall doctorNot recommendedNot recommended 12–17 lbs4–11 months2.5 mL (80 mg)1.25 mL (25 mg)Not recommended 18–23 lbs12–23 months3.75 mL (120 mg)2.5 mL (50 mg)2.5 mL (6.25 mg) 24–35 lbs2–3 years5 mL (160 mg)5 mL (100 mg)5 mL (12.5 mg) 36–47 lbs4–5 years7.5 mL (240 mg)7.5 mL (150 mg)7.5 mL (18.75 mg) 48–59 lbs6–8 years10 mL (320 mg)10 mL (200 mg)10 mL (25 mg) 60–71 lbs9–10 years12.5 mL (400 mg)10 mL (200 mg)12.5 mL (31.25 mg) 72–95 lbs11–12 years15 mL (480 mg)10 mL (200 mg)15 mL (37.5 mg) 96+ lbs12+ years15–20 mL (480–640 mg)10 mL (200 mg) or adult dose20 mL (50 mg) or adult dose