The antibacterial spectrum of besifloxacin, a novel fluoroquinolone recently approved for treatment of ocular infections, was studied using 2,690 clinical isolates representing 40 species. Overall, besifloxacin was the most potent agent tested against gram-positive pathogens and anaerobes and was generally equivalent to comparator fluoroquinolones in activity against most gram-negative pathogens. Besifloxacin demonstrated potent, broad-spectrum activity, which was particularly notable against gram-positive and gram-negative isolates that were resistant to other fluoroquinolones and classes of antibacterial agents.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2715578 | PMC |
http://dx.doi.org/10.1128/AAC.00418-09 | DOI Listing |
J Chromatogr B Analyt Technol Biomed Life Sci
November 2021
Schepens Eye Research Institute of Massachusetts Eye & Ear, Dept. of Ophthalmology, Harvard Medical School, Boston, MA, United States. Electronic address:
Besifloxacin has been embraced for the treatment of ocular bacterial infections. While LC-MS/MS has been used in investigating BSF pharmacokinetics, those costly instruments are not universally available and have complicated requirements for operation and maintenance. Additionally, pharmacokinetics of besifloxacin in dose-intense regimens are still unknown.
View Article and Find Full Text PDFSci Rep
November 2020
Laboratory of Food, Drugs, and Cosmetics (LTMAC), University of Brasilia, Brasília, DF, 70910-900, Brazil.
Topical ophthalmic antibiotics show low efficacy due to the well-known physiological defense mechanisms of the eye, which prevents the penetration of exogenous substances. Here, we aimed to incorporate besifloxacin into liposomes containing amines as positively charged additives and to evaluate the influence of this charge on drug delivery in two situations: (i) iontophoretic and (ii) passive treatments. Hypothesis are (i) charge might enhance the electromigration component upon current application improving penetration efficiency for a burst drug delivery, and (ii) positive charge might prolong formulation residence time, hence drug penetration.
View Article and Find Full Text PDFInt J Pharm
July 2020
Department of Pharmaceutical Technology Faculty of Pharmacy, Hacettepe University, 06100 Ankara, Turkey.
Microorganisms
August 2019
4th Department of Internal Medicine, Attikon University Hospital, 12462 Athens, Greece.
Increasing multidrug-resistance to Gram-positive pathogens, particularly to staphylococci, enterococci and streptococci, is a major problem, resulting in significant morbidity, mortality and healthcare costs. In recent years, only a small number of novel antibiotics effective against Gram-positive bacteria has been approved. This review will discuss the current evidence for novel branded antibiotics that are highly effective in the treatment of multidrug-resistant infections by Gram-positive pathogens, namely ceftobiprole, ceftaroline, telavancin, oritavancin, dalbavancin, tedizolid, besifloxacin, delafloxacin, ozenoxacin, and omadacycline.
View Article and Find Full Text PDFJ Ocul Pharmacol Ther
October 2018
1 Department of Pharmacy, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Hyderabad, India .
Purpose: The aim of the study was to develop a novel formulation of levofloxacin and besifloxacin to achieve improved mucoadhesion and permeability of besifloxacin and levofloxacin through cornea for the effective treatment of ocular infections.
Methods: A multicomponent hydrogel formulation containing chitosan-polyvinyl alcohol (PVA)-poly(N-vinylpyrrolidone) (PVP) was designed. Lysophosphatidylcholine was used to enhance corneal penetration of the drugs.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!