Cefuroxime  (Synonyms: Kefurox)

Cefuroxime is an orally active second-generation cephalosporin antibiotic with increased stability to β-lactamase. Cefuroxime has a broad spectrum activity against Gram-positive and Gram-negative bacteria^[1].

Cefuroxime is highly active against S. aureus (MIC=0.25 μg/ml), regardless of whether the strains produces a penicillinase. It is against Staphylococcus aureus methicillin susceptible; S. aureus, methicillin resistant, Streptococcus pyogenes, S. pneumoniae, S. viridans, S. faecalis, and Clostridium spp with MIC values of 0.25 μg/ml, 5.9 μg/ml, 0.125 μg/ml, 0.125 μg/ml, 0.125 μg/ml, >125.0 μg/ml, and 1.2 μg/ml, respectively^[1].
Cefuroxime (10-100 μg/ml; 2-6 hours) rapidly bactericidal, its action is comparatively slow against the strains of S. aureus, but, even so, over 99% of the initial inoculum is killed by 6 h. The gram-negative organisms are killed rapidly, and in most cases over 99% of the very large inocula are killed within 2 h; the β-lactamase-producing strains are killed as quickly as non-enzyme-producing strains^[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Rabbits (weighing 2.0 to 2.5 kg) are challenged intravenously with S. aureus strain 630 (a penicillinase-producing strain), the median effective dose of Cefuroxime is 3 mg/kg as a result of the protection test^[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

424.39

C₁₆H₁₆N₄O₈S

55268-75-2

Solid

White to light yellow

O=C(C(N12)=C(COC(N)=O)CS[C@]2([H])[C@H](NC(/C(C3=CC=CO3)=N\OC)=O)C1=O)O

Room temperature in continental US; may vary elsewhere.

4°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

• [1]. Callaghan, et al. Cefuroxime, a New Cephalosporin Antibiotic: Activity in Vitro. Antimicrob Agents Chemother. 1976 Mar;9(3):511-9.  [Content Brief]

  [2]. D M Ryan, et al. Cefuroxime, a New Cephalosporin Antibiotic: Activity in Vivo. Antimicrob Agents Chemother. 1976 Mar;9(3):520-5.  [Content Brief]