Related Experiment Video

Updated: Jul 4, 2025

Multiplex Therapeutic Drug Monitoring by Isotope-dilution HPLC-MS/MS of Antibiotics in Critical Illnesses
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Multiplex Therapeutic Drug Monitoring by Isotope-dilution HPLC-MS/MS of Antibiotics in Critical Illnesses

Published on: August 30, 2018

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Optimizing Antibiotic Therapy for Intravenous Drug Users: A Narrative Review Unraveling

Marta Colaneri1,2, Camilla Genovese3, Pietro Valsecchi4

  • 1Department of Infectious Diseases, ASST Fatebenefratelli Sacco University Hospital, Milan, Italy. marta.colaneri@gmail.com.

European Journal of Drug Metabolism and Pharmacokinetics
|February 9, 2024
PubMed

Insights

Standard antibiotic doses may fail for intravenous drug users (IVDUs) due to altered pharmacokinetics. Personalized dosing and therapeutic drug monitoring are crucial for effective treatment of gram-positive infections in IVDUs.

Area of Science:

  • Pharmacology
  • Infectious Diseases
  • Public Health

Background:

  • Intravenous drug users (IVDUs) have increased risk for serious gram-positive bacterial infections, like MRSA.
  • Standard antibiotic dosing may be ineffective in IVDUs, similar to other special populations.
  • Limited understanding exists regarding antibiotic pharmacokinetics/pharmacodynamics in IVDUs.

Approach:

  • This review analyzes pharmacokinetic/pharmacodynamic properties of key antibiotics used against gram-positive pathogens.
  • Focuses on antibiotics such as daptomycin, vancomycin, teicoplanin, aminoglycosides, and dalbavancin.
  • Considers factors influencing antibiotic efficacy in IVDUs, including opioid substitution therapy and malnutrition.

Key Points:

  • Significant pharmacokinetic variations observed in IVDUs necessitate individualized antibiotic dosing.
  • Opioid substitution therapy and malnutrition alter antibiotic pharmacokinetics/pharmacodynamics.
  • Targeted therapeutic drug monitoring is essential for optimizing treatment outcomes.

Conclusions:

  • Clinicians need greater awareness of unique pharmacokinetic/pharmacodynamic challenges in IVDUs.
  • Tailored antibiotic dosing strategies are vital for improving treatment efficacy in this population.
  • Personalized medicine approaches can enhance outcomes for IVDUs battling bacterial infections.

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