Generic name: Amoxicillin.

Other brand names: Amoxil Chewables, Biomox, Polymox, Trimox, Wymox.

Amoxil is an antibiotic. It is used to prevent bacteria from multiplying and growing.

Quick Facts About Amoxil


Used to treat infections, including: gonorrhea, middie ear, skin, upper and lower respiratory tract, genital and urinary tract. Also used with lansoprazole in patients with duodenal ulcer and to reduce the risk of duodenal ulcer recurrence.

Amoxil Dosage

Prevent stomach upset, may take with or without food. If using suspension, shake well before using. Take Amoxil for the entire amount of time your doctor has prescribed, especially with strep throat infections.

  • Usual adult dose: for ear, nose, throat, skin, genital and urinary tract infections — 250 milligrams taken every 8 hours. For infections of lower respiratory tract — 500 milligrams taken every 8 hours. For gonorrhea — 3 grams in a single oral dose. For gonococcal infections such as acute, uncomplicated anogenital and urethral infections — 3 grams as a single oral dose.
  • Usual child dose: for children weighing 44 pounds and over — follow the recommended adult dose schedule. For children weighing under 44 pounds — dosage is determined by their weight. Dosage of pediatric drops — use dropper provided with medication to measure all doses. For all infections except lower respiratory tract — under 13 pounds: 0.75 milliliter every 8 hours; 13 to 15 pounds: I milliliter every 8 hours; 16 to 18 pounds: 1.25 milliliters every 8 hours. For infections of the lower respiratory tract — under 13 pounds: 1.25 milliliters every 8 hours; 13 to 15 pounds: 1.75 milliliters every 8 hours; 16 to 18 pounds: 2.25 milliliters every 8 hours. Children weighing over 18 pounds — should take oral liquid. Place suspension directly on tongue for swallowing. Can be added to formula, milk, fruit juice, water, ginger ale, or cold drinks. Take preparation immediately, and make sure entire preparation is taken.
  • 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 in 2 to 4 hours. Then go back to regular schedule. Do not double doses.

Amoxil Side Effects

Overdose symptoms:

diarrhea, nausea, stomach cramps, vomiting. If you suspect an overdose, immediately seek medical attention.

More common side effects: gitation, anemia, anxiety, changes in behavior, confusion, diarrhea, dizziness, heartburn, hives, hyperactivity, insomnia, nausea, rash, vomiting.

No known less common or rare Amoxil side effects.


Inform your doctor before combining Amoxil with:

Allopurinol (Lopurin), Chloramphenicol (Chloromycetin), Erythromycin (E.E.S., PCE, others), oral contraceptives, Probenecid (Benemid), Tetracycline (Achromycin V and others).

No known food/other substance interactions. 

Special Cautions

If pregnant or planning to become pregnant, inform your doctor immediately. May appear in breast milk: could affect a nursing infant.

Seniors should use with caution.

Follow doctor’s instructions carefully for children.

  • Do not use if you are allergic to penicillin or cephalosporin antibiotics.
  • Stop using if you experience: bruising, fever, skin rash, itching, joint pain, swollen lymph nodes, or sores on the genitals, unless your doctor advises you to continue.
  • Consult with doctor if you have had: asthma, hives, hay fever, or other allergies, colitis, diabetes, kidney or liver disease.
  • 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 Amoxil side effects, please contact your healthcare provider.