Breakpoints
The SIDP Podcast
15 days ago

#114 – Dosing Consult: Amoxicillin/Clavulanate

Drs. Pier Giorgio Cojutti and Navaneeth Narayanan join Dr. Megan Klatt to break down what you need to know about amoxicillin/clavulanate dosing. Tune in to learn more about the PK/PD of amoxicillin and clavulanic acid, how we landed on certain ratios for the treatment of common infections, strategies to optimize dosing for serious infections, and more!

References:

  1. Oral amoxicillin and amoxicillin-clavulanic acid: properties, indications and usage. Clin Microbiol Infect. 2020 Jul;26(7):871-879. doi: 10.1016/j.cmi.2019.11.028. Epub 2019 Dec 4. PMID: 31811919.
  2. New formulations of amoxicillin/clavulanic acid: a pharmacokinetic and pharmacodynamic review. Clin Pharmacokinet. 2005;44(11):1097-115. doi: 10.2165/00003088-200544110-00001. PMID: 16231964.
  3. Non-linear absorption pharmacokinetics of amoxicillin: consequences for dosing regimens and clinical breakpoints. J Antimicrob Chemother. 2016 Oct;71(10):2909-17. doi: 10.1093/jac/dkw226. Epub 2016 Jun 20. PMID: 27330071.
  4. Augmentin (amoxicillin/clavulanate) in the treatment of community-acquired respiratory tract infection: a review of the continuing development of an innovative antimicrobial agent. J Antimicrob Chemother. 2004 Jan:53 Suppl 1:i3-20. doi: 10.1093/jac/dkh050. PMID: 14726431.
  5. Is the standard dose of amoxicillin-clavulanic acid sufficient? BMC Pharmacol Toxicol. 2014 Jul 21:15:38. doi: 10.1186/2050-6511-15-38. PMID: 25047044.
  6. MIC of amoxicillin/clavulanate according to CLSI and EUCAST: discrepancies and clinical impact in patients with bloodstream infections due to Enterobacteriaceae. J Antimicrob Chemother. 2017 May 1;72(5):1478-1487. doi: 10.1093/jac/dkw562. PMID: 28093484.
  7. Amoxicillin-Clavulanate Breakpoints Against Enterobacterales: Rationale for Revision by the Clinical and Laboratory Standards Institute. Clin Infect Dis. 2024 Aug 16;79(2):516-523. doi: 10.1093/cid/ciae201. PMID: 38626241.
  8. Amoxicillin-Clavulanate Breakpoints Against Haemophilus influenzae: Rationale for Revision by the Clinical and Laboratory Standards Institute. Clin Infect Dis. 2025 Feb 24;80(2):481-482. doi: 10.1093/cid/ciae246. PMID: 38709848.
  9. No evidence of difference in mortality with amoxicillin versus co-amoxiclav for hospital treatment of community-acquired pneumonia. J Infect. 2024 Jun;88(6):106161. doi: 10.1016/j.jinf.2024.106161. Epub 2024 Apr 23. PMID: 38663754.
  10. Population pharmacokinetics and dosing simulations of amoxicillin in obese adults receiving co-amoxiclav. J Antimicrob Chemother. 2020 Dec 1;75(12):3611-3618. doi: 10.1093/jac/dkaa368. PMID: 32888018.
  11. Comprehensive guidance for antibiotic dosing in obese adults: 2022 update. Pharmacotherapy. 2023 Mar;43(3):226-246. doi: 10.1002/phar.2769. Epub 2023 Feb 18. PMID: 36703246.