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Carbenicillin has been shown to be effective against bacteria responsible for causing urinary tract infections including Pseudomonas aeruginosa, Escherichia coli, and some Proteus species. The following represents carbenicillin susceptibility data for a few medically significant organisms. [3]
β-Lactam antibiotics are indicated for the prevention and treatment of bacterial infections caused by susceptible organisms. At first, β-lactam antibiotics were mainly active only against gram-positive bacteria, yet the recent development of broad-spectrum β-lactam antibiotics active against various gram-negative organisms has increased their usefulness.
Doses higher than 500 mg are not fully effective because of poor absorption. It is used for the same bacterial infections as those of penicillin G and is the most widely used form of penicillin. [34] However, it is not used for diseases, such as endocarditis, where high blood levels of penicillin are required.
Ampicillin is an antibiotic belonging to the aminopenicillin class of the penicillin family. The drug is used to prevent and treat several bacterial infections, such as respiratory tract infections, urinary tract infections, meningitis, salmonellosis, and endocarditis. [7]
These new drugs are also the only β-lactam antibiotics that are effective against methicillin-resistant-Staphylococcus-aureus (MRSA). Ceftobiprole is a pyrrolidinone -3- ylidenemethyl cephem. The C-3 side chain was specifically designed to have a strong binding affinity to PBP2a and PBP2x.
Ampicillin/sulbactam can be used to treat gynecological infections caused by beta-lactamase producing strains of E. coli, and Bacteroides spp. (including B. fragilis). [2] [4] Bone and joint infections Ampicillin/sulbactam can be used in the treatment of bone and joint infections caused by susceptible beta-lactamase producing bacteria. [5] [6 ...
They are also able to penetrate the central nervous system, making them useful against meningitis caused by pneumococci, meningococci, H. influenzae, and susceptible E. coli, Klebsiella, and penicillin-resistant N. gonorrhoeae.
Antibiotics are used to treat or prevent bacterial infections, [34] and sometimes protozoan infections. (Metronidazole is effective against a number of parasitic diseases). When an infection is suspected of being responsible for an illness but the responsible pathogen has not been identified, an empiric therapy is adopted. [35]