Ceftazidime is a broad spectrum antibiotic administered mainly by the parenteral route, and it is especially effective against Pseudomonas aeruginosa. The period of time in which serum levels exceed the Minimum Inhibitory Concentration (MIC) is an important pharmacodynamic parameter for its efficacy. One of the forms to extend this period is to administer the antibiotic by continuous infusion, ...

Introduction. The aim of the study was an analysis of pharmacokinetics and PK/PD parameters Cmax/MIC and AUC/MIC for ciprofloxacin in intensive care unit patients. Material and methods. Patients (n=3) received ciprofloxacin intravenously at 400 mg/ 8 h. Blood samples were collected on day 1st of the ciprofloxacin therapy. Plasma drug concentrations were measured by HPLC-UV method. Results. The ...

Enrofloxacin (2.5 mg/kg of body weight) and danofloxacin (1.25 mg/kg) were administered subcutaneously to ruminating calves (n = 8) fitted with subcutaneous tissue cages. Concentrations of enrofloxacin, its metabolite ciprofloxacin, and danofloxacin in blood (plasma), tissue cage exudate (following intracaveal injection of 0.3 ml of 1% [vol/wt] carrageenan), and bronchial secretions were measur...

In order to evaluate the efficacy of an antibacterial therapy, three basic PK/PD indexes were defined: the ratio between the maximum drug concentration obtained after a single dose and minimum inhibitory concentration MIC (CMAX/MIC), the ratio between the area under the curve of dependence between the drug concentration in blood and time within 24 hours to MIC (AUC24/MIC), and the time when the...

Propolis is a non-toxic natural substance with multiple pharmacological properties including anti-cancer, antioxidant, fungicidal, antibacterial, antiviral, and anti-inflammatory among others. The aim of this study was to determine the chemical and botanical characterization of Chilean propolis samples and to evaluate their biological activity against the cariogenic bacteria Streptococcus mutan...

The study objective was to determine the effect of oral orbifloxacin (ORB) on antimicrobial susceptibility and composition of fecal coliforms in cats. Nine cats were randomized to two groups administered a daily oral dose of 2.5 and 5.0 mg ORB/kg for 7 days and a control group (three cats per group). Coliforms were isolated from stool samples and were tested for susceptibilities to ORB and 5 ot...