What is the dose of Amoxicillin-Clavulanate (Amoxiclav)?

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Last updated: May 7, 2025View editorial policy

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From the Guidelines

Amoxiclav dosing depends on the patient's age, weight, infection severity, and renal function, with a standard dose of 875 mg amoxicillin/125 mg clavulanate twice daily or 500 mg amoxicillin/125 mg clavulanate three times daily for most common infections in adults with normal kidney function. For children, dosing is typically based on the amoxicillin component at 25 mg/kg/d of the amoxicillin component in 2 divided doses po, as recommended by the Infectious Diseases Society of America 1.

Key Considerations

  • The medication should be taken with food to enhance absorption and reduce gastrointestinal side effects.
  • Treatment duration usually ranges from 7-14 days depending on the infection type and severity.
  • Dose adjustment is necessary for patients with renal impairment.
  • Common side effects include diarrhea, nausea, and skin rash.

Patient-Specific Factors

  • Age and weight are crucial in determining the appropriate dose of amoxiclav for children.
  • Infection severity and type also play a significant role in deciding the treatment duration and dose.
  • Renal function is essential to consider for dose adjustment to prevent toxicity.

Evidence-Based Recommendations

  • The Infectious Diseases Society of America recommends amoxiclav as an option for treating skin and soft tissue infections, with specific dosing guidelines for adults and children 1.
  • Other studies support the use of amoxiclav in various infections, including community-acquired pneumonia, with dosing recommendations based on local susceptibility data 1.

From the Research

Amoxiclav Dose

  • The dose of amoxicillin/clavulanate can vary depending on the infection being treated and the patient's age and weight 2.
  • For lower respiratory tract infections, a dose of 875/125 mg given every 12 hours is as effective as 500/125 mg given every 8 hours 3.
  • In children with bronchiectasis, a dose of 45 mg/kg per day of amoxicillin-clavulanate is used to treat non-severe respiratory exacerbations 2.
  • The efficacy of amoxicillin/clavulanate has been compared to other antibiotics, such as levofloxacin and azithromycin, in various studies 4, 5, 6.
  • Amoxicillin/clavulanate has been shown to be effective in treating a range of infections, including community-acquired pneumonia, acute exacerbations of chronic bronchitis, and skin and skin structure infections 4, 5, 6.

Dosage Comparison

  • A study comparing the efficacy of amoxicillin/clavulanate given every 12 hours to every 8 hours found that the two regimens were similar in terms of clinical and bacteriological success 3.
  • Another study found that amoxicillin/clavulanate was as effective as levofloxacin in treating community-acquired pneumonia 4.
  • Amoxicillin/clavulanate has also been compared to azithromycin in the treatment of non-severe respiratory exacerbations in children with bronchiectasis, with both antibiotics showing similar efficacy 2.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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