An UHPLC-MS/MS method for the simultaneous determination of ampicillin and sulbactam in human plasma and urine.
Bioanalysis 2015;
7:2311-2319. [PMID:
26395242 DOI:
10.4155/bio.15.143]
[Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND
With few new antibiotics available and an increased prevalence of multidrug-resistant bacteria, optimizing the effectiveness of currently available antibiotics and minimizing the potential for emerging resistance, through PK characterization, is of paramount importance.
RESULTS
Inter- and intra-assay results for ampicillin were within 5% for accuracy and 7% for precision, and for sulbactam within 7% for accuracy and 7% for precision, for both plasma and urine. The plasma Cmax was 38.4 µg/ml for ampicillin and 19.0 µg/ml for sulbactam. The urine concentrations were 668 µg/ml for ampicillin and 438 µg/ml for sulbactam.
CONCLUSION
An UHPLC-MS/MS method to simultaneously measure co-formulated ampicillin and sulbactam in plasma and urine, for use in a patient PK study, has been developed and validated.
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