Antimicrobial pharmacodynamics is a term used to describe the relationship between concentration of antibiotic and its ability to inhibit vital processes of endo- or ectoparasites and microbial organisms.C.H. Nightingale, T. Murakawa, P.G. Ambrose (2002) Antimicrobial Pharmacodynamics in Theory and Clinical Practice Informa Health Care ISBN 0824705610] This branch of pharmacodynamics relates concentration of an anti-infective agent to effect, but specifically to its antimicrobial effect.cite journal |author=Drusano GL |title=Antimicrobial pharmacodynamics: critical interactions of 'bug and drug' |journal=Nat. Rev. Microbiol. |volume=2 |issue=4 |pages=289–300 |year=2004 |pmid=15031728 |doi=10.1038/nrmicro862]
minimum inhibitory concentrationand minimum bactericidal concentration are used to measure "in vitro" activity antimicrobial and is an excellent indicator of antimicrobial potency. They don't give any information relating to time-dependent antimicrobial killing the so called post antibiotic effect.
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