Amoxicillin
Amoxicillin
What is Amoxicillin?
Amoxicillin is an antibiotic used to treat infections caused by bacteria, such as pneumonia, skin infections, and urinary tract infections. It can also help eliminate a specific bacteria that causes ulcers when used with other medications.Side Effects
- Diarrhea that may contain blood, stomach cramps, fever
- Blistering, peeling, or red skin rash
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
Warnings
- Keep all medicine out of the reach of children. Never share your medicine with anyone.
- Use this medicine to treat only the infection your doctor has prescribed it for. Do not use this medicine for any infection or condition that has not been checked by a doctor. This medicine will not treat the flu or the common cold.
- Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, allergies, or a condition called phenylketonuria (PKU). Tell your doctor if you are on dialysis.
- This medicine can cause diarrhea. Call your doctor if the diarrhea becomes severe, does not stop, or is bloody. Do not take any medicine to stop diarrhea until you have talked to your doctor. Diarrhea can occur 2 months or more after you stop taking this medicine.
- Tell any doctor or dentist who treats you that you are using this medicine. This medicine may affect certain medical test results.
Prescription savings · · · ·
What is Amoxicillin ?
Amoxicillin is an antibiotic used to treat infections caused by bacteria, such as pneumonia, skin infections, and urinary tract infections. It can also help eliminate a specific bacteria that causes ulcers when used with other medications.- Diarrhea that may contain blood, stomach cramps, fever
- Blistering, peeling, or red skin rash
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
- Keep all medicine out of the reach of children. Never share your medicine with anyone.
- Use this medicine to treat only the infection your doctor has prescribed it for. Do not use this medicine for any infection or condition that has not been checked by a doctor. This medicine will not treat the flu or the common cold.
- Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, allergies, or a condition called phenylketonuria (PKU). Tell your doctor if you are on dialysis.
- This medicine can cause diarrhea. Call your doctor if the diarrhea becomes severe, does not stop, or is bloody. Do not take any medicine to stop diarrhea until you have talked to your doctor. Diarrhea can occur 2 months or more after you stop taking this medicine.
- Tell any doctor or dentist who treats you that you are using this medicine. This medicine may affect certain medical test results.
- Call your doctor if your symptoms do not improve or if they get worse.
Amoxicillin Coupons & Prices
Amoxicillin
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Looking for an amoxicillin coupon? Amoxicillin is a widely prescribed generic penicillin-class antibiotic, and because it is generic it is already one of the lower-cost prescriptions at the pharmacy. Even so, the cash price can vary widely from one pharmacy to the next, so comparing before you fill can make a real difference. Rx.com compares live amoxicillin prices across more than 60,000 U.S. pharmacies so you can find today's lower price near you. Enter your ZIP above to see today's price and print or show a free coupon at the pharmacy counter.
What is amoxicillin and how does it work?
Amoxicillin is a penicillin-class (aminopenicillin) beta-lactam antibiotic. It works by interfering with the ability of certain bacteria to build their cell walls, which stops the bacteria from growing and multiplying. It is FDA-approved to treat infections caused by susceptible bacteria, including ear, nose, and throat infections (such as middle-ear infections, strep throat, tonsillitis, and sinusitis), lower respiratory tract infections (such as pneumonia and bronchitis), urinary tract infections, and skin infections. In combination with clarithromycin and a proton-pump inhibitor (lansoprazole or omeprazole), it is also used to help eradicate H. pylori in duodenal ulcer disease.
Amoxicillin was originally sold under brand names such as Amoxil (and the now-discontinued Moxatag and Trimox), but it is almost always dispensed as the generic today. Only a healthcare provider can determine whether amoxicillin is right for your infection.
Amoxicillin cost and coupons without insurance
Amoxicillin is a generic, so it is typically one of the more affordable antibiotics, even if you are paying without insurance. That said, the cash price is not the same everywhere: two pharmacies in the same town can list noticeably different prices for the exact same prescription. That is why comparing pharmacies matters, and why a free coupon can help you pay the lower cash price rather than the sticker price.
Rx.com pulls live prices from more than 60,000 pharmacies so you can see what amoxicillin actually costs near you today. Enter your ZIP above to see today's price, then present the free Rx.com coupon at the pharmacy. There is no membership or insurance required to use it.
Amoxicillin vs. related antibiotics
Amoxicillin is closely related to a few other antibiotics your provider may consider. Augmentin (also sold generically as amoxicillin-clavulanate) combines amoxicillin with clavulanate, an ingredient that helps it work against certain bacteria that would otherwise resist plain amoxicillin. Amoxicillin is itself a member of the broader penicillin family.
For people who cannot take penicillins, providers often turn to other antibiotic classes, such as cephalexin, azithromycin, or doxycycline. The right choice depends on the type of infection and your allergy history, so this is a decision to make with your prescriber.
Amoxicillin safety and side effects
Amoxicillin has no boxed warning, but there are important safety points to know. The most serious risk is a severe, occasionally life-threatening allergic (anaphylactic) reaction, which is more likely in people with a penicillin or cephalosporin allergy. Amoxicillin is contraindicated in people with a penicillin allergy. Rare but serious skin reactions (such as SJS/TEN, DRESS, and AGEP) can also occur. People with mononucleosis (the "mono" virus, EBV) often develop a characteristic non-allergic rash if given amoxicillin.
Diarrhea caused by C. difficile, which can range from mild to a serious colitis, may occur during or even after treatment. Amoxicillin may also make hormonal birth control less effective. Take the full course exactly as prescribed, even if you feel better early, to avoid antibiotic resistance. This information is not medical advice; talk with your doctor or pharmacist about your specific situation and report any severe rash, swelling, trouble breathing, or persistent diarrhea right away.
This Amoxicillin information was written and reviewed against authoritative U.S. medical sources — MedlinePlus (U.S. National Library of Medicine), DailyMed, and FDA prescribing information — and checked for accuracy. It is provided for education and is not a substitute for professional medical advice.
Verify the official label: Amoxicillin on DailyMed (FDA)
Reviewed against FDA labeling · Last reviewed July 2026
Amoxicillin — Articles & Guides
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Medical disclaimer: This information is provided for general educational purposes only and is not medical advice. It is not a substitute for professional diagnosis or treatment. Always consult a licensed physician, pharmacist, or other qualified healthcare provider before starting, stopping, or changing any medication or treatment. Never disregard professional medical advice or delay seeking it because of something you read here. If you think you may have a medical emergency, call your doctor or 911 immediately.