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They also have a greater resistance to β-lactamases than the third-generation cephalosporins. Many can cross the blood–brain barrier and are effective in meningitis. They are also used against Pseudomonas aeruginosa. [citation needed] Cefiderocol has been called a fourth-generation cephalosporin by only one source as of November 2019. [33 ...
Cefdinir, sold under the brand name Omnicef among others, is an antibiotic used to treat pneumonia, otitis media, strep throat, and cellulitis. [1] It is a less preferred option for pneumonia, otitis media, and strep throat which may be used in those with a severe penicillin allergy . [ 1 ]
Cefdinir: Omnicef, Cefdiel Cefditoren: Spectracef, Meiact Cefoperazone [Unlike most third-generation agents, cefoperazone is active against Pseudomonas aeruginosa], combination Cefoperazone with Sulbactam makes more effective antibiotic, because Sulbactam avoid degeneration of Cefoperazone: Cefobid (discontinued) Cefotaxime: Claforan: Cefpodoxime
Ceftazidime, sold under the brand name Fortaz among others, is a third-generation cephalosporin antibiotic useful for the treatment of a number of bacterial infections. [1] [5] Specifically it is used for joint infections, meningitis, pneumonia, sepsis, urinary tract infections, malignant otitis externa, Pseudomonas aeruginosa infection, and vibrio infection. [1]
Cefpodoxime is an oral, third-generation cephalosporin antibiotic available in various generic preparations. It is active against both Gram-positive and Gram-negative organisms with notable exceptions including Pseudomonas aeruginosa, Enterococcus, and Bacteroides fragilis.
Pseudomonas aeruginosa; Serratia marcescens; This indication is supported by a study in which cefiderocol was not inferior to meropenem in treating nosocomial pneumonia caused by Gram-negative bacteria. The primary endpoint of the study was mortality due to any cause at day 14, where both antibiotics were shown to be equally effective. [14]
Cefepime has an extended spectrum of activity against Gram-positive and Gram-negative bacteria, with greater activity against both types of organism than third-generation agents. A 2007 meta-analysis suggested when data of trials were combined, mortality was increased in people treated with cefepime compared with other β-lactam antibiotics . [ 1 ]
[5] [14] From the first generation cephalosporins to the third generation there is a development from being more effective against gram-positive bacteria to being more effective against gram-negative bacteria and less effective against gram-positive bacteria respectively. However the activity returns to a balanced effectiveness against gram ...
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