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/ ˌ s ɛ f ə l ə ˈ s p ɔːr ɪ n, ˌ k ɛ-,-l oʊ-/ [1] [2]) are a class of β-lactam antibiotics originally derived from the fungus Acremonium, which was previously known as Cephalosporium. [3] Together with cephamycins, they constitute a subgroup of β-lactam antibiotics called cephems. Cephalosporins were discovered in 1945, and first ...
Ceftriaxone, sold under the brand name Rocephin, is a third-generation cephalosporin antibiotic used for the treatment of a number of bacterial infections. [4] These include middle ear infections, endocarditis, meningitis, pneumonia, bone and joint infections, intra-abdominal infections, skin infections, urinary tract infections, gonorrhea, and pelvic inflammatory disease. [4]
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.
An example of such an enzyme is New Delhi metallo-beta-lactamase 1, discovered in 2009.) The genes encoding these enzymes may be inherently present on the bacterial chromosome or may be acquired via plasmid transfer ( plasmid-mediated resistance ), and β-lactamase gene expression may be induced by exposure to β-lactams.
The binding of ceftolozane to human plasma proteins is approximately 16% to 21%, while the binding of tazobactam is approximately 30%. The mean steady-state volume of distribution in healthy adult males after a single 1.5 g IV dose is 13.5 L for ceftolozane and 18.2 L for tazobactam, which is similar to extracellular fluid volume.
Formula: C 16 H 15 N 5 O 7 S 2: Molar mass: 453.44 g·mol −1: 3D model ... In the United States it is a second-line treatment to ceftriaxone for gonorrhea. [5]
Cefditoren is predominantly eliminated by the kidneys as unchanged drug and has a renal clearance of 4.1–5.6 L/h after multiple doses; its elimination half-life is 1.5 hours. [ 5 ] Medical uses
Pound per hour is a mass flow unit based on the international avoirdupois pound, which is used in both the British imperial and, being a former colony of Britain, the United States customary systems of measurement.