Amoxicillin Pediatric Dosage
Calculate the correct amoxicillin pediatric dosage for children based on weight, age, indication, and suspension strength. Free online pediatric dosing tool with accurate measurements and charts.
About This Calculator
The Amoxicillin Pediatric Dosage Calculator helps parents, caregivers, and healthcare professionals determine the correct dose of amoxicillin for children aged 1 month to 18 years. Based on WHO guidelines and the American Academy of Pediatric Dentistry recommendations, this tool calculates weight-based dosing for various indications including general bacterial infections, Strep A pharyngitis, and endocarditis prophylaxis.
Amoxicillin is a broad-spectrum penicillin-type antibiotic used worldwide to treat bacterial infections such as ear infections (otitis media), strep throat, sinusitis, and respiratory tract infections in children. The calculator uses weight-based dosing of 15-30 mg/kg per dose for general oral administration, 30-60 mg/kg per dose for intravenous administration, and specialized dosing protocols for Strep A and endocarditis prophylaxis. For oral suspensions, it also computes the exact volume in mL based on the selected suspension strength (125/5, 200/5, 250/5, or 400/5 mg/mL).
Dosing calculations follow WHO consensus guidance on pediatric amoxicillin regimens and AAPD common pediatric medication guidelines. Each indication has specific dosing parameters, maximum doses, and treatment durations clearly shown in the results.
Regional Information
India: Amoxicillin is widely available as oral suspension (125 mg/5 mL, 250 mg/5 mL) and tablets under various brand names. A prescription is required. Common brands include Mox (Cipla), Novamox (Dr. Reddy's), and Almod (Zydus). The standard treatment duration is 5-10 days depending on the infection.
United States: Amoxicillin is one of the most commonly prescribed antibiotics for children. Available as oral suspension, chewable tablets, and capsules. The FDA-approved labeling provides weight-based dosing guidelines. Insurance typically covers generic amoxicillin. Always check for penicillin allergies before administering.
United Kingdom: The NHS recommends amoxicillin as a first-line antibiotic for many childhood infections. Available as oral suspension and capsules. NICE guidelines provide specific dosing recommendations for different infections. The BNFC (British National Formulary for Children) is the authoritative source for pediatric dosing in the UK.
Important: This calculator is a reference tool only. Always verify the calculated dose with a healthcare professional and check the medication leaflet for contraindications and drug interactions. Never administer amoxicillin if your child has a known penicillin allergy.
Frequently Asked Questions
How is amoxicillin pediatric dosage calculated?
Amoxicillin pediatric dosage is primarily based on the child's weight in kilograms. For general infections, the standard oral dose is 15-30 mg/kg per dose given every 8 hours, with a maximum of 500 mg per dose and 4 g per day. The exact dose depends on the indication, route of administration, and suspension strength used.
What suspension strengths are available for pediatric amoxicillin?
Amoxicillin oral suspension is commonly available in four strengths: 125 mg/5 mL, 200 mg/5 mL, 250 mg/5 mL, and 400 mg/5 mL. The 250 mg/5 mL and 400 mg/5 mL strengths are often used for older children requiring higher doses, while 125 mg/5 mL and 200 mg/5 mL suit younger or lighter children.
What is the Strep A dosing schedule for amoxicillin in children?
For Strep A pharyngitis, children under 15 kg receive 50 mg/kg once daily, children 15-29 kg receive 750 mg once daily, and children 30 kg or more receive 1000 mg once daily. The treatment duration is 10 days regardless of weight.
What is the maximum daily dose of amoxicillin for children?
The maximum daily dose of amoxicillin for children is 4 g per day (4000 mg/day) for most indications. For oral administration, the maximum single dose is 500 mg, while for intravenous administration the maximum single dose is 1 g. For endocarditis prophylaxis, a single dose of up to 2 g may be used.
Can amoxicillin be given intravenously to children?
Yes, amoxicillin can be administered intravenously (IV) to children, typically in hospital settings. The IV dose for general infections ranges from 30-60 mg/kg per dose every 8 hours, with a maximum single dose of 1 g and a maximum daily dose of 4 g. IV administration is often used for more severe infections or when oral intake is not possible.
How do I measure the correct volume of amoxicillin suspension for my child?
To measure the correct volume, divide the prescribed dose in mg by the strength per mL of your suspension. For example, a 250 mg/5 mL suspension contains 50 mg per mL. If your child needs a 150 mg dose, you would administer 3 mL of suspension. Always use the measuring device provided with the medication, never a kitchen spoon.
What infections does amoxicillin treat in children?
Amoxicillin is a broad-spectrum antibiotic used to treat various bacterial infections in children, including otitis media (ear infections), streptococcal pharyngitis (strep throat), sinusitis, lower respiratory tract infections, urinary tract infections, and as prophylaxis for infective endocarditis before dental procedures. It is not effective against viral infections like the common cold.
When should I consult a doctor before using this amoxicillin dosage calculator?
Always consult a healthcare provider before starting or adjusting any medication. This calculator is a reference tool only. Seek medical advice if your child has kidney disease, is allergic to penicillin or cephalosporins, has phenylketonuria (some suspensions contain aspartame), or is taking other medications that may interact with amoxicillin such as methotrexate or warfarin.