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This is an information resource — not medical advice.

PillCodex provides general educational information about medications. This content is not a substitute for professional medical advice, diagnosis, or treatment. Never start, stop, or change a medication based on what you read here. Always speak to your doctor, pharmacist, or qualified healthcare provider with questions about your medications.

🚨 If you are experiencing a medical emergency or think you may have taken too much of a medication, call emergency services (911 in the US) or go to your nearest emergency room immediately.

Penicillin-type Antibiotic🔒 Prescription only

What Is Amoxicillin Used For?

Brand names: Amoxil, Trimox

Amoxicillin is a broad-spectrum penicillin antibiotic used to treat a wide variety of bacterial infections in adults and children.

What is Amoxicillin used for?

Strep throat and tonsillitis
Ear infections (otitis media)
Chest infections and pneumonia
Urinary tract infections (UTIs)
Skin infections
H. pylori stomach infections
Dental infections

How does Amoxicillin work?

Amoxicillin interferes with bacteria's ability to build their cell walls. Without a functional cell wall, bacteria cannot survive. It has no effect on viruses.

Dosage information

💊Available forms

250mg capsules
500mg capsules
875mg tablets
125mg/5ml suspension
250mg/5ml suspension

📏Typical dosage

Adults: usually 500–875mg every 8–12 hours for 7–10 days. Children's dose is weight-based.

⚠️ Dosage varies by individual. Always follow your doctor's or pharmacist's instructions — never self-dose based on general information.

Side effects

Common

Diarrhea
Stomach upset
Nausea
Vomiting
Skin rash

⚠️ Serious — contact your doctor

Allergic reaction — hives, swelling, difficulty breathing (emergency)
C. difficile severe diarrhea
Liver problems (rare)

Important warnings

Tell your doctor about any penicillin allergy before taking

Complete the full course

Does NOT treat viral infections (cold, flu, COVID-19)

A rash on amoxicillin doesn't always mean penicillin allergy — get it evaluated

Drug interactions

These substances may interact with Amoxicillin. This is not a complete list — always tell your doctor and pharmacist ALL medications and supplements you take.

WarfarinMethotrexateOral contraceptives (may slightly reduce effectiveness)Probenecid

Pregnancy & breastfeeding

🤰 Generally considered safe during pregnancy

Always consult your doctor or obstetrician before taking any medication during pregnancy or while breastfeeding.

Frequently asked questions

What is amoxicillin used for?

Amoxicillin treats bacterial infections including ear infections, strep throat, pneumonia, UTIs, skin infections, dental abscesses, and H. pylori. It does not treat viral infections.

How long does amoxicillin take to work?

Most people start feeling better within 24–72 hours. Complete the full course (usually 7–10 days) even if you feel better sooner.

Can you drink alcohol while taking amoxicillin?

Alcohol does not directly interact but can worsen side effects and impair your immune system. Moderate consumption is generally okay.

Does amoxicillin treat COVID-19 or colds?

No. Amoxicillin only works against bacterial infections. COVID-19, colds, and flu are caused by viruses — antibiotics have no effect.

What if I miss a dose of amoxicillin?

Take the missed dose as soon as you remember. If it's almost time for your next dose, skip it. Never double up.

Related medications

💊IbuprofenNSAID 💊OmeprazoleProton Pump Inhibitor (PPI)💊CetirizineSecond-Generation Antihistamine 💊AzithromycinMacrolide Antibiotic

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This is an information resource — not medical advice.

🚨 If you are experiencing a medical emergency or think you may have taken too much of a medication, call emergency services (911 in the US) or go to your nearest emergency room immediately.

Information on this page is sourced from general pharmaceutical references and is provided for educational purposes only. Drug information may change — always verify with your pharmacist or prescriber. PillCodex.com is not affiliated with any pharmaceutical company.