Medscape - Infection-specific dosing for Amoxil (amoxicillin), frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and cost. Taking the right dosage of amoxicillin helps clear the infection and lowers the risk of resistance and side effects. This guide covers how much to take, when to take it, and what to do if you miss a dose. The standard amoxicillin dosage for most bacterial infections in adults and children is 500–875 mg every 12 hours or 250–500 mg every eight hours. The max dose of amoxicillin is 1.75 grams daily for most infections and 3 grams daily for some infections. Get the facts on amoxicillin's dosages. Learn how to take the drug, the forms it comes in, and more. Key takeaways: Amoxicillin (Amoxil) is a prescription antibiotic commonly used to treat bacterial infections of the ears, skin, and more. It comes as a capsule, tablet, and oral suspension. Most kids and adults taking amoxicillin take one dose 2 or 3 times per day for 5 to 10 days at a time. Amoxicillin belongs to a group of drugs called antibiotics. This article describes the dosages of amoxicillin, as well as its strengths and how to take it. The children's amoxicillin dose calculator instantly shows the per-dose amount in mg and mL, plus chewable tablet options. The pediatric antibiotic calculator follows AAP 2026 guidelines for safe and effective dosing. Amoxicillin is a penicillin antibiotic that fights bacteria. It is used to treat many types of infections such as tonsillitis, bronchitis, pneumonia, and others. The usual dose is 20 to 40 milligrams (mg) per kilogram (kg) of body weight per day, divided and given every 8 hours, or 25 to 45 mg per kg of body weight per day, divided and given every 12 hours. Detailed Amoxicillin dosage information for adults and children. Includes dosages for Urinary Tract Infection, Sinusitis, Bronchitis and more; plus renal, liver and dialysis adjustments.