Antibiotics Home > Amoxicillin Drug Information

Amoxicillin (Amoxil®) is a prescription antibiotic approved to treat a variety of different infections, including urinary tract infections, upper respiratory tract infections, and ear infections. Although it is often used by itself, amoxicillin can also be combined with other antibiotics to treat certain infections.
Amoxicillin belongs to a group of medications known as aminopenicillins. It works by stopping bacteria from making cell walls, which eventually causes the bacteria to die. Make sure that you finish your entire prescription, even if you start feeling better, to ensure that the infection is completely treated. In most cases, amoxicillin is taken two to three times a day.
In order to help ensure safe treatment with amoxicillin, information on the antibiotic should be reviewed with your healthcare provider beforehand. It is important to be aware of the potential side effects of this medicine (side effects of amoxicillin may include nausea, thrush, diarrhea, and rashes). You should also talk to your healthcare provider before taking amoxicillin if you have:
  • Kidney disease, such as kidney failure (renal failure)
  • Phenylketonuria
  • A penicillin allergy
  • Any other allergies, including allergies to food, dyes, or preservatives.
(Click Amoxicillin for more information, including a list of the forms and strengths available for this medication, warnings for the drug, and dosing guidelines.)
Written by/reviewed by:
Last reviewed by: Arthur Schoenstadt, MD
Last updated/reviewed:
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