NHS medicines information on dosage for amoxicillin, how to take it and what to do if you miss a dose or take too much. Amoxicillin is a prescription drug used to treat certain types of bacterial infections. Learn about the drug’s dosages, forms, strengths, and more. Find patient medical information for Amoxicillin (Amoxil and others) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Amoxicillin is a penicillin antibiotic that fights bacteria. It is used to treat many types of infections such as tonsillitis, bronchitis, pneumonia, and others. Amoxicillin is used to treat bacterial infections in many different parts of the body (ear, lungs, nose, sinus, skin, urinary tract). It is also used with other medicines (eg, clarithromycin, lansoprazole) to treat H. pylori infection and duodenal ulcers. Learn how amoxicillin 500 mg is used, standard dosage guidelines, possible side effects, safety precautions, and when to contact a doctor. For most adults, the standard amoxicillin dose is 500 mg every 8 hours or 875 mg every 12 hours. Most courses run 7 to 10 days, though the exact length depends on the type of infection. Learn how often to take amoxicillin 500mg, how long your course should last, and practical tips for missed doses and timing. Amoxicillin is a prescription antibiotic that treats bacterial infections. Here’s what you need to know about its dosage and how to take it. This article provides a complete guide to safely taking the 500mg dose, including factors that can affect dosing, and key safety tips.