Amoxicillin dosage for tooth infection - how many days?

Medically reviewed by Chad ShafferMD
Physician
Written by Jennifer Larson
Contributor
Updated Jan 27, 2026  •  Published Jan 9, 2026
Fact Checked

Amoxicillin is typically prescribed for a tooth infection for three to seven days. According to ADA guidelines, a common dosage is 500 mg taken three times per day, but the exact duration depends on the severity of the infection, the bacteria involved, and the patient’s medical history.

Interested in learning more? Read our guide to the Best antibiotics for a tooth infection.


Medical disclaimer: This content is for general informational purposes only and does not constitute medical advice. Always consult your dentist or other healthcare provider before making changes to your medication regimen.

Medically reviewed by Chad ShafferMD
Physician

Chad Shaffer, MD, earned his medical doctorate from Penn State University and completed a combined Internal Medicine and Pediatrics residency at the University of Pittsburgh Medical Center and Children’s Hospital of Pittsburgh. He is board certified by the American Board of Internal Medicine and the American Board of Pediatrics. He has provided full-service primary care to all ages for over 15 years, building a practice from start up to over 3,000 patients. His passion is educating patients on their health and treatment, so they can make well-informed decisions.

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Written by Jennifer Larson
Contributor

Jennifer Larson is a freelance writer who lives in Nashville, Tennessee. She has a bachelor's degree from Rhodes College in Memphis, Tennessee, and a master's degree in journalism from the University of Maryland, College Park. She's a member of the Association of Healthcare Journalists and the Society of Professional Journalists. When she's not writing, Jennifer enjoys reading, running, dancing, watching baseball, and chauffeuring her two young sons to all their extracurricular activities.

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