Vancomycin is a tricyclic glycopeptide that inhibits bacterial cell wall synthesis. It is considered to be
bactericidal against most Gram-positive organisms, except Enterococcus species. Vancomycin has bot
time-dependent killing and moderate persistent effects that is dependent on concentration (i.e., peak).
Persistent effects include the Post-Antibiotic Effect (PAE), which is the persistent suppression of bacterial
growth following antibiotic exposure. The ideal dosing regimen is to maximize the amount of drug
received. Thus, the appropriate pharmacodynamics parameter that correlates with efficacy is the 24H-
Area Under the Curve (AUC)/MIC ratio.
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