zinacef dosage iv
Amorphous nanoparticles of cefuroxime axetil (CFA), a poorly water-soluble drug, were produced by the controlled nanoprecipitation method without any surfactants at room temperature. The influence of the operation parameters, such as the types of solvent and anti-solvent, the stirring speed, the solvent/anti-solvent (S/AS) volume ratio, the drug concentration and the precipitation temperature, were experimentally investigated. The results indicated that increasing the stirring speed and the S/AS volume, decreasing the drug concentration and the temperature favored to decrease the particle size from 700 to 900 nm to approximately 300 nm. The XRD analyses confirmed that the as-prepared CFA was amorphous nanoparticles. Furthermore, the amorphous CFA nanoparticles exhibited significantly enhanced dissolution property when compared to the commercial spray-dried product. The results demonstrated that the controlled nanoprecipitation method is a direct and feasible technology which could be utilized for preparation of the poorly water-soluble pharmaceutical nanoparticles.
zinacef pediatric dose iv
This article presents the preparation of nanoparticles of amorphous cefuroxime axetil (CFA) in a microporous tube-in-tube microchannel reactor (MTMCR). The experimental results indicated that CFA particle with a tunable size of 400-1400 nm could be achieved under a high throughput in the range of 1.5-6L/min. The average particle size decreased with increasing overall volumetric flow rate and decreasing CFA concentration, micropore size, and annular channel width. The produced CFA nanoparticles were characterized by SEM, XRD, FT-IR, DSC and a dissolution test, which indicated that the nanosized CFA was amorphous and exhibited higher dissolution rate compared to the raw CFA. The MTMCR might offer a general and facile pathway for mass production of the nanoparticles of hydrophobic pharmaceuticals thanks to its high throughput capacity and excellent micromixing performance.
zinacef dosage im
The usage of antibiotics in ARS is widespread and there seems to be only slight added benefit in the usage of antibiotics over placebo in the treatment of ARS. Hence, larger scale studies should be done in the future to confirm the results of these studies.
The pharmacokinetic parameters of cefixime were determined in healthy volunteers following oral administration of 200 mg cefixime as tablet, syrup and dry suspension, respectively. All three galenic formulations showed reliable absorption. Mean peak plasma concentrations amounted to 2.4-3.4 mg/l and were reached after 3.3-3.5 h. Mean terminal half-lives were 2.9-3.1 h. The mean areas under the plasma concentration-time curves ranged between 18 and 26 mg/l.h; 18-24% of the dose administered were recovered unchanged in the urine. The best bioavailability was obtained with the dry suspension followed by the tablet and the syrup. With respect to the ester pro-drug cephalosporins, cefuroxime axetil, cefetamet pivoxyl and cefotiam hexetil, cefixime exhibits higher plasma half-life and area under the curve as well as, comparable absolute bioavailability but consistently lower urinary recovery which indicates higher non-renal clearance.
Limited data exist on differences of erythema migrans patients with either positive or negative Borrelia burgdorferi sensu lato skin culture.
The probability of oral bioavailability for beta-lactam antibiotics is mainly determined by their affinity to PEPTI. A threshold K(i) value of 14 mM with respect to Gly-Sar uptake is required.
This prospective, open-label, randomized study assessed clarithromycin 500 mg twice daily, levofloxacin 500 mg once daily, and cefuroxime axetil 250 mg twice daily, each administered for 10 days with food, in patients with ABECB. Efficacy was determined on the basis of the clinical response to treatment and need for hospitalization and/or further antimicrobial therapy.
zinacef brand name
Disappearance of middle ear effusion is one of the most important outcomes in the treatment of acute otitis media (AOM).
zinacef tablet uses
A retrospective study conducted by interviewing French gastroenterologists was performed with the objective of evaluating the incidence and etiology of pseudomembranous colitis in cases where the diagnosis has been confirmed by coloscopy. This study allowed to collect data on 878 pseudomembranous colitis observed by 438 gastroenterologists within 6 months. It shows evidence of the importance of various antibiotics in the etiology of pseudomembranous colitis (89% of the identified cases). The following is the list of antibiotics or antibiotic classes, in increasing order of their association with the development of pseudomembranous colitis: macrolides which are very rarely associated, a group represented by cefaclor, cefuroxime axetil and cyclins, which are rarely associated, a third group constituted by amoxicillin, ofloxacin and trimethoprim-sulfamethoxazole which appears to be 2 to 3 times more frequently associated than the previous group, and a fourth group of antibiotics, represented by cefixime and the association amoxicillin-clavulanic acid, which is 7 times more frequently associated than antibiotics of the second group.