Generic name: Amoxicillin with clavulanate potassium

Other brand names: Augmentin Chewables

Augmentin is an antibiotic. It prevents bacteria from multiplying and growing. Clavulanate potassium prevents the breakdown of Amoxicillin in the body.

Quick Facts About Augmentin


Used to treat lower respiratory, middle ear, sinus, skin, and urinary tract infections caused by certain bacteria.

Augmentin Dosage

To prevent stomach upset, may take with or without food. If taking suspension, shake well before using. Take exactly as prescribed.

  • Usual adult dose: one 250-milligram tablet every 8 hours. For more severe infections and infections of the respiratory tract — one 500-milligram tablet every 8 hours. Now comes in a 120-milligram tablet.
  • Usual child dose: total of 20 milligrams per 2.2 pounds of body weight per day, taken every 8 hours. For middle ear infections, sinus infections, and lower respiratory infections — 40 milligrams per 2.2 pounds of weight, taken every 8 hours in divided doses. For severe infections — higher than usual dose. For children weighing 88 pounds or more — take adult dose.
  • Missed dose: take as soon as possible. If almost time for next dose, and taking 2 doses a day, take missed dose, then next dose in 5 to 6 hours. If taking 3 or more doses a day, take missed dose, then next dose 2 to 4 hours later. Then go back to regular schedule. Do not double doses.

Augmentin Side Effects

Overdose symptoms:

Augmentin is generally safe. Large amounts may cause overdose symptoms, including exaggerated side effects listed below. If you suspect an overdose, immediately seek medical attention.

More common side effects: diarrhea/loose stools, itching or burning of the vagina, nausea or vomiting, skin rashes and hives.

Less common Augmentin side effects: abdominal discomfort, anemia, arthritis, black “hairy” tongue, blood disorders, fever, gas, headache, heartburn, indigestion, itching, joint pain, muscle pain, skin inflammation, skin peeling, sores and inflammation in the mouth and on the tongue and gums. Rare side effects: agitation, anxiety, behavioral changes, change in liver function, confusion, dizziness, hyperactivity, insomnia.


Inform your doctor before combining Augmentin with:

Benemid, Probenecid, oral contraceptives, Zyloprim. Do not take when using Antabuse (Disulfiram).

No known food/other substance interactions.

Special Cautions

If pregnant or planning to become pregnant, inform your doctor immediately. Possible risk to the developing baby. May appear in breast milk; could affect a nursing infant.

Seniors should use with caution.

Follow doctor’s instructions carefully for children.

  • Allergic reactions can be serious and possibly fatal; inform your doctor of previous allergic reactions to penicillins or other medicines, food or other substances.
  • Consult with doctor if you have had: asthma, blood disorder, hives, hay fever, or other allergies, colitis, diabetes, kidney or liver disease, mononucleosis.
  • If diabetic, may cause false positive urine glucose test results.

Note: provides accurate and independent information prescription pills, over-the-counter medicines and natural products. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. If you have questions about  dosage, or Augmentin side effects, please contact your healthcare provider.