Amoxicillin is a common antibiotic used to treat many infections caused by bacteria. It works by stopping bacteria from building cell walls, which kills them. Doctors prescribe it for ear infections, strep throat, sinusitis, bronchitis, urinary tract infections, and tooth abscesses. You usually take it by mouth as a pill, capsule, or liquid.
How much you take depends on your age, weight, and the infection. Adults often take 250–500 mg every eight hours or 500–875 mg every 12 hours. Children get a dose based on weight; your doctor or pharmacist will give exact numbers. Always finish the full course even if you feel better early—stopping too soon can let bacteria return stronger.
Common side effects are nausea, diarrhea, and mild rash. Most people tolerate amoxicillin well, but serious allergic reactions can happen. If you get hives, swelling of the face or throat, trouble breathing, or a severe rash, stop the medicine and seek emergency care. Tell your doctor about any penicillin allergy before taking amoxicillin.
Amoxicillin can interact with other drugs. It may reduce the effectiveness of some birth control pills, so use backup contraception if needed. Inform your doctor about blood thinners, methotrexate, or allopurinol you might be taking. If you have kidney problems, you may need a lower dose.
Call your doctor if symptoms don’t improve after 48–72 hours or if they get worse. If you develop fever, severe diarrhea, yellowing of the skin, dark urine, or new bruising, seek medical advice. For children, watch for high fever, trouble breathing, or not drinking fluids—these need prompt attention.
Take amoxicillin with or without food, but a small snack can reduce stomach upset. For the liquid form, shake the bottle well and use a proper measuring spoon or syringe. Store the suspension in the fridge if the label says so and throw away any leftover after the prescribed days. Never share antibiotics or use leftover pills from previous illnesses.
Using antibiotics only when needed helps prevent resistance. If you have frequent infections, ask your doctor about testing or vaccines that might reduce repeat illness. Pregnant or breastfeeding? Tell your provider—amoxicillin is often safe, but your doctor will advise based on your situation.
If you have questions about amoxicillin, side effects, or interactions with other medications, reach out to your healthcare provider or pharmacist. They can give advice tailored to your health and help you use antibiotics safely.
Quick note: don't take amoxicillin for viral infections like colds or flu. If you start taking it and your symptoms improve, still complete the course. Missing doses can lower the drug level and allow bacteria to survive. If you vomit within 30 minutes of a dose, take it again. Keep a list of your medications and allergies to show any new doctor. Pharmacists can help with questions about side effects and safe storage.
Save the prescription label and note the expiry date before you start treatment regularly.
