Ceftizoxime sodium

Описание

Ceftizoxime was synthesized by Fujisawa Pharmaceutical Industries in 1979. It possesses the (iminothiazolyl)methoxyiminomethyl group at the 7 position of the cephem nucleus, but there is no side chain at the 3 position. The compound shows excellent activity against gram-positive and gram-negative bacteria, behavior similar to that of cefotaxime. Unlike cefotaxime, however, it is not metabolized in vivo.

Химические свойства

Cefotaxime Sodium is white, white or light yellow crystalline powder; odorless; insoluble in organic solvents but soluble in water. The 10% solution has a pH of 4.5 to 6.5. Dilute solution is colorless or yellowish while high-concentration solution is grayish yellow. Dark yellow or brown color indicates that the drug has been deteriorated. The aqueous solution can be stored at 5 ℃ for 1 week.

Использование

Antibacterial.

Определение

ChEBI: The sodium salt of ceftizoxime.

Клиническое использование

Ceftizoxime (Cefizox) is a third-generation cephalosporinthat was introduced in 1984. This β-lactamase–resistant agentexhibits excellent activity against the Enterobacteriaceae,especially E. coli, K. pneumoniae, E. cloacae, Enterobacteraerogenes, indole-positive and indole-negative Proteus spp.,and S. marcescens. Ceftizoxime is claimed to be more activethan cefoxitin against B. fragilis. It is also very active againstGram-positive bacteria. Its activity against P. aeruginosa issomewhat variable and lower than that of either cefotaxime orcefoperazone.
Ceftizoxime is not metabolized in vivo. It is excretedlargely unchanged in the urine. Adequate levels of the drugare achieved in the cerebrospinal fluid for the treatment ofGram-negative or Gram-positive bacterial meningitis. It mustbe administered on a thrice-daily dosing schedule because ofits relatively short half-life. Ceftizoxime sodium is very stablein the dry state. Solutions maintain potency for up to 24hours at room temperature and 10 days when refrigerated.