Amoxicillin is one of the most common antibiotics prescribed in the UK. It’s a penicillin‑type drug that fights bacterial infections in the throat, ears, lungs, skin, and urinary tract. Doctors like it because it works fast and is usually well‑tolerated.
Before you start, know that amoxicillin only works against bacteria, not viruses. That means it won’t help with colds or flu. Using it when you don’t need it can lead to resistance, making future infections harder to treat.
Adults usually get 500 mg every 8 hours or 875 mg every 12 hours, depending on the infection. Kids get a dose based on weight—often 20‑40 mg per kilogram per day, split into two or three doses. Always follow the doctor’s prescription exactly.
Take the tablet or liquid with a full glass of water. You can take it with food or on an empty stomach; food may ease stomach upset for some people. If you miss a dose, take it as soon as you remember unless it’s almost time for the next one—don’t double up.
Most people feel fine, but mild side effects happen. Expect possible nausea, diarrhea, or a headache. These usually clear up on their own. If you notice a rash, itching, or swelling, stop the medication and call a pharmacist or doctor right away—these could signal an allergic reaction.
Severe reactions are rare but serious. Look out for trouble breathing, hives, or a rapid heartbeat. These need emergency care. Also, if you develop a new fever or worsening symptoms while on amoxicillin, contact your doctor; it might mean the infection isn’t responding.
It’s important to finish the whole course, even if you feel better after a few days. Stopping early lets surviving bacteria grow stronger and could cause the infection to return.
Pregnant or breastfeeding mothers should discuss amoxicillin with their doctor, but it’s generally considered safe. People with kidney problems may need a lower dose, so let your GP know about any chronic conditions.
Drug interactions are possible. If you’re taking blood thinners, another antibiotic, or certain contraceptives, ask how amoxicillin might affect them. Most interactions are mild, but it’s worth a quick check.
Storing amoxicillin is simple: keep tablets in a cool, dry place away from light. Liquid suspension should be refrigerated and shaken well before each use. Discard any leftover liquid after the expiration date—unused medicine can lose potency.
To sum up, amoxicillin is a reliable first‑line antibiotic for many common infections. Use the right dose, finish the whole prescription, and watch for side effects. When in doubt, a quick call to your pharmacy can clear up most questions without a doctor’s visit.
Got more questions about amoxicillin or other medicines? Our site offers easy‑to‑understand articles on a wide range of drugs, so you can stay informed and make the best choices for your health.