Free Augmentin (amoxicillin/clavulanate) dosage calculator for adults and children. Calculate dose by weight, indication, and formulation. Learn about Augmentin dosages for adults and children, including XR and ES-600 forms. Find out about treatment durations, storing it, and taking it with food. Take the medicine every 12 hours. Do not crush or chew the extended-release tablet. Swallow the pill whole, or break the pill in half and take both halves one at a time. Tell your doctor if you have trouble swallowing a whole or half pill. Shake the oral suspension (liquid) before you measure a dose. The dose is usually 40 mg per kg of body weight per day every 8 hours or 45 mg per kg of body weight per day every 12 hours. Children younger than 3 months of age—Dose is based on body weight and must be determined by your doctor. Detailed dosage guidelines and administration information for Augmentin (amoxicillin and clavulanate potassium). Includes dose adjustments, warnings and precautions. The typical adult dosage of Augmentin is 875 mg amoxicillin/125 mg clavulanic acid (one tablet) taken every 12 hours, with treatment lasting 3 to 14 days depending on the type of infection. What is the Typical Augmentin Dose for Adults? Adults usually take Augmentin tablets in doses ranging from 250 mg to 875 mg of amoxicillin combined with clavulanate potassium. The typical Augmentin dosage for adults ranges from 250 mg to 875 mg every 8 to 12 hours for 5 to 10 days. The dosage for children is based on their body weight. Available Dosage Forms Expressed as amoxicillin-clavulanate “Standard” Formulation (7:1) Suspension: 400 mg-57mg/5mL Tablets: 875 mg-125 mg1 Chewable Tabs: 400 mg-57 mg2 Medscape - Indication-specific dosing for Augmentin (amoxicillin/clavulanate), frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules.