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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.
Cefepime is a fourth-generation cephalosporin antibiotic. 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.
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]
Gram-positive: Some members of this group (in particular, those available in an oral formulation, and those with antipseudomonal activity) have decreased activity against gram-positive organisms. Activity against staphylococci and streptococci is less with the third-generation compounds than with the first- and second-generation compounds. [29]
The β-lactam core structures. (A) A penam.(B) A carbapenam.(C) An oxapenam.(D) A penem.(E) A carbapenem.(F) A monobactam.(G) A cephem.(H) A carbacephem.(I) An oxacephem. This is a list of common β-lactam antibiotics—both administered drugs and those not in clinical use—organized by structural class.
Cefoperazone contains an N-methylthiotetrazole (NMTT or 1-MTT) side chain.As the antibiotic is broken down in the body, it releases free NMTT, which can cause hypoprothrombinemia (likely due to inhibition of the enzyme vitamin K epoxide reductase) and a reaction with ethanol similar to that produced by disulfiram (Antabuse effect), due to inhibition of aldehyde dehydrogenase.
Sulopenem/probenecid, sold under the brand name Orlynvah, is a fixed-dose combination medication used for the treatment of urinary tract infections. [1] It contains sulopenem, a penem antibacterial, as the prodrug sulopenem etzadroxil; and probenecid, a renal tubular transport inhibitor.
For outpatient treatment, oral antibiotics or those with less frequent dosing may be prescribed. [31] As an effective alternative to penicillin and spectinomycin, and replacement for methicillin, cefoxitin is used to treat gonorrhea in both men and women with few side effects. [32]