Influence of pharmacokinetics/pharmacodynamics of antibacterials in their dosing regimen selection
Francesco Scaglione1, Luca Paraboni
1University of Milan, Department of Pharmacology, Chemotherapy and Toxicology, Faculty of Medicine, Via Vanvitelli 32, 20129, Milan, Italy. francesco.scaglione@unimi.it
Abstract:
The choice of antimicrobial dosing in clinical practice in the past was based upon a 'penicillin mentality', that is, on the assumption that the in vivo antimicrobial efficacy is dependent on the duration of drug levels above the minimum inhibitory concentration of target microorganisms. Really, a rational antimicrobial therapy is strongly related to a basic understanding of the influence the patient has on the antibiotic (pharmacokinetics [PKs]) and the patient's response to the specific drug effects (pharmacodynamics [PDs]). PK/PD parameters are essential in facilitating the translation of microbiological activity into clinical situations, ensuring a successful outcome. This review will analyze the typical patterns of antimicrobial activity and the corresponding PK/PD parameters, with a special focus on a PK/PD dosing approach with the most commonly utilized antimicrobial agent classes.
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