Quinolone hypersensitivity, most of which is immediate type, is rare but has increased in recent years. The pathogenic mechanisms underlying immediate reactions are not defined clearly. This study was aimed to observe the clinical characteristics of immediate hypersensitivity to ofloxacin and to investigate the pathogenic mechanism with detection of serum specific IgE to ofloxacin using an enzy...

To assess the safety of topical agents in the middle ear, animal studies were reviewed. Compared with aminoglycoside-containing preparations, which caused significant loss of hair cells in the basal turn of the cochlea, ofloxacin caused no loss of hair cells, even at concentrations higher than used clinically. Moreover auditory brainstem testing revealed no change in auditory thresholds in the ...

A simple, sensitive and highly selective electrochemical method was developed for the simultaneous determination of nitazoxanide and ofloxacin in aqueous media (Britton-Robinson buffer, pH-8.36) on a hanging mercury drop electrode (HMDE) using differential pulse polarography (DPP). Using DPP a separation of about 936 mV between the peak oxidation potentials of nitazoxanide and ofloxacin present...

The diffusion of antibiotics in endocarditis vegetation bacterial masses has not been described, although it may influence the efficacy of antibiotic therapy in endocarditis. The objective of this work was to assess the diffusion of ofloxacin in experimental endocarditis vegetation bacterial masses using synchrotron-radiation UV fluorescence microspectroscopy. Streptococcal endocarditis was ind...

A reverse phase high performance liquid chromatography method was developed for simultaneous estimation of nitazoxanide and ofloxacin in tablet formulation. The separation and quantification was achieved by Hiq Sil C(18)V Size 4.6 mm Ø (*)250 mm column in isocratic mode, with mobile phase consisting of acetonitrile-methanol-0.4 M citric acid, (60:30:10, v/v/v). Citric acid used to stabilize nit...

The in vivo efficacy of ofloxacin was compared with those of cefotaxime and doxycycline in a rat model of epididymitis due to Escherichia coli. Treatment was started 24 h after infection and was continued for 7 days. Ofloxacin reduced the numbers of E. coli organisms in the epididymides significantly more than the other therapeutic regimens and cured the infection more frequently. Histopatholog...

The most commonly sexually transmitted bacteria are Neisseria gonorrhoeae and Chlamydia trachomatis. The quinolones ofloxacin and ciprofloxacin have been shown to have activity against both of these bacteria in vitro and in vivo. Ofloxacin is particularly well suited for the treatment of N. gonorrhoeae and C. trachomatis cervical infection, which can be considered the earliest manifestation of ...

PURPOSE To examine the in vitro resistance to ofloxacin of preoperative bacterial isolates from the conjunctival sac of Japanese patients. METHODS The database of bacterial flora cultured preoperatively from the conjunctival sac of 1455 Japanese patients (1455 eyes) between 1995 and 1999 was reviewed retrospectively. RESULTS The incidence of resistance of isolates to ofloxacin in vitro incr...

The efficacy and tolerance of ofloxacin and doxycycline were compared in patients with lower respiratory tract infections. Doses used were 200 or 400mg twice daily for ofloxacin and 100mg twice daily for doxycycline. Of 230 patients treated, 219 could be assessed for effectiveness. 88 patients were treated for exacerbations of chronic bronchitis and 131 for pneumonia. Clinical cure was achieved...

Carvedilol is administered as a racemic mixture of the R(+)- and S(-)-enantiomers, although it was demonstrated that the two enantiomers exhibit different pharmacological effects and stereoselective pharmacokinetics. The aim of this study was the evaluation of several native and derivatized cyclodextrines as chiral selectors for the separation of carvedilol enantiomers. Stereoselective interact...