Pedemy All toolsPick a drug class and group to see every drug's per-dose mg/kg, interval, maximum and key cautions.
This tool is a quick bedside reference for the anti-infective medicines most often used in children. Choose a class (penicillins, cephalosporins, other antibacterials, antivirals, or antifungals and antiparasitics), then a group, and every drug in that group is listed with its dose.
Each row gives the dose per dose in mg/kg, how often to give it, and the maximum per dose, with the daily total in the rule text. Where the dose depends on the indication, such as high-dose amoxicillin for otitis or ceftriaxone for meningitis, there is a separate row. Common liquid strengths are shown so the dose can be turned into milliliters, and the page calculates the dose when a weight is entered.
Every group ends with practical cautions: kidney dose adjustment, QT prolongation, age limits such as fluoroquinolone restrictions, doxycycline use at any age for short courses, ceftriaxone with calcium in neonates, nitrofurantoin not for febrile UTI, and linezolid duration. Neonatal dosing is noted where it differs. Always confirm doses with your pharmacy.
45 mg/kg per dose every 12 hours (90 mg/kg/day), maximum 2 g per dose. For amoxicillin-clavulanate use the 14:1 ES-600 suspension so the clavulanate dose stays low.
Yes, for courses of 21 days or less at any age, for example for Rocky Mountain spotted fever. Short courses have not been shown to stain teeth. The dose is 2.2 mg/kg every 12 hours, maximum 100 mg per dose.
Ceftriaxone displaces bilirubin and can precipitate with calcium. In the first 28 days of life it must never be given with IV calcium-containing fluids, and it is avoided in jaundiced neonates. Cefotaxime, or cefepime or ceftazidime, is used instead.
No. It does not reach useful levels in the kidney or blood, so it is only for afebrile cystitis or prophylaxis.
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