BACKGROUND The substitution of piperacillin/tazobactam, ampicillin/sulbactam, or both for third-generation cephalosporins has been associated with reduced vancomycin-resistant enterococci (VRE). However, piperacillin/tazobactam came into widespread use during a period in which the prevalence of VRE increased. We hypothesized that the increasing use of piperacillin/tazobactam and other agents wi...

PURPOSE To report the treatment of therapy-resistant Pseudomonas aeruginosa keratitis with topical piperacillin/tazobactam. METHODS Retrospective report of 3 cases. RESULTS Three patients with P. aeruginosa keratitis were unresponsive to various antimicrobials. Resolution of all 3 cases of keratitis occurred upon commencement of topical piperacillin/tazobactam. CONCLUSION Therapy-resistan...

Electrolytes imbalance has been reported with the use of several antimicrobials. We report a case of severe hypokalemia secondary to piperacillin/tazobactam in a patient with normal renal function and normal serum potassium level who had presented with a fractured neck of femur. The electrolytes abnormality was corrected once piperacillin/tazobactam was stopped. To our knowledge, this is the fi...

The comparative efficacy of 2 g of piperacillin and 4.8 X 10(6) U of penicillin G in the treatment of uncomplicated gonococcal urethritis was assessed in a randomized prospective study. Sixty-five evaluable patients received piperacillin, and 55 received penicillin G. All patients received either therapy were cured of gonorrhea. We conclude that piperacillin is as efficacious as aqueous procain...

INTRODUCTION The aim of this study was to explore the impact of augmented creatinine clearance and differing minimum inhibitory concentrations (MIC) on piperacillin pharmacokinetic/pharmacodynamic (PK/PD) target attainment (time above MIC (fT>MIC)) in critically ill patients with sepsis receiving intermittent dosing. METHODS To be eligible for enrolment, critically ill patients with sepsis ha...

Extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae are a common cause of bacteraemia in endemic countries and may be associated with high mortality; carbapenems are considered the drug of choice. Limited data suggest piperacillin-tazobactam could be equally effective. We aimed to compare 30-day mortality of patients treated empirically with piperacillin-tazobactam versus a car...

PURPOSE To evaluate the physical compatibility of vancomycin with piperacillin-tazobactam during simulated Y-site administration. METHODS Vancomycin and piperacillin-tazobactam were tested using 2 different diluents: 0.9% sodium chloride and 5% dextrose for injection. Vancomycin concentrations of 2, 5, and 10 mg/mL were tested using 0.9% sodium chloride and 4 and 8 mg/mL in 5% dextrose. Piper...

Sub Minimal Inhibitory concentrations (sub-MIC) of antibiotics, although not able to kill bacteria, can be effect on their physico- chemical characteristics and functions. This study aimed to investigate the effect of sub-MIC of imipenem and piperacillin on the transcriptional expression of virulence related genes algD and lasB in Pseudomonas auroginosa. Five clinical isolates of P. aeruginosa ...

Activities of clinafloxacin, ciprofloxacin, levofloxacin, sparfloxacin, trovafloxacin, piperacillin, piperacillin-tazobactam, trimethoprim-sulfamethoxazole, ceftazidime, and imipenem against 354 ciprofloxacin-susceptible and -intermediate-resistant organisms were tested by agar dilution. Clinafloxacin yielded the lowest quinolone MICs (< or = 0.5 microg/ml against ciprofloxacin-susceptible orga...

The VITEK 2 (bioMérieux Inc., Hazelwood, MO) automated system employs an advanced expert system (AES) analyzing antimicrobial susceptibility test results according to the bacterial species (2). According to the AES, the piperacillin susceptibilities of all Klebsiella spp. are converted to resistance even though the automated MICs determined for their isolates are low. In contrast, other automat...