Amoxicillin is a broad-spectrum antibiotic belonging to the penicillin group. It is commonly used to treat bacterial infections such as ear infections, strep throat, pneumonia, urinary tract infections (UTIs), and sinus infections. It works by preventing bacteria from forming cell walls, causing them to die.

This antibiotic is available in capsules, tablets, and liquid suspensions. It is generally well-tolerated but may cause mild side effects like nausea, diarrhea, or allergic reactions in some individuals. Patients allergic to penicillin should avoid amoxicillin. It is important to complete the full course of antibiotics as prescribed to prevent antibiotic resistance.