Цефдинир

Описание

Cefdinir is an orally active, beta-lactamase stable cephalosporin with a broad spectrum of activity. Compared to other oral cephalosporins, cefdinir is more potent against Gram-positive bacteria, especially Staphylococci. Its activity against Gram-negative bacteria such as E.coli,K. pneumoniae and P.mirabilis is similar to cefixime, but superior to cefaclor and cephalexin.

Химические свойства

Pale Yellow Solid

Использование

A Cephalosporin antibiotic structurally similar to Cefixime

Определение

ChEBI: A cephalosporin compound having 7beta-2-(2-amino-thiazol-4-yl)-2-[(Z)-hydroxyimino]-acetylamino- and 3-vinyl side groups.

Антимикробная активность

An oral cephalosporin similar in structure to cefixime, but with a slightly modified side chain at the 7-amino position. Activity is similar to that of cefixime, but it is more active, especially against staphylococci. It is not hydrolyzed by staphylococcal or the common plasmid-mediated enterobacterial β-lactamases. An enhancing effect on phagocytosis has been demonstrated in vitro.
Oral absorption is about 35%. A 200 mg oral dose achieves a plasma concentration of 1 mg/L after c. 3 h. Absorption is reduced after a fatty meal. Concentrations equal to or higher than corresponding plasma levels were present in blister fluid 6–12 h after administration of an oral dose. The plasma halflife is 1.5 h. Protein binding is 60–70%. A total of 12–20% of the dose was excreted in the urine within 12 h, the renal elimination declining with increasing dose. The elimination half-life and peak plasma concentration are increased in renal failure. About 60% of the drug is removed by hemodialysis.
Side effects and uses are those common to oral cephalosporins.

Профиль безопасности

Moderately toxic by ingestion andintravenous routes. Low toxicity by intraperitoneal andsubcutaneous routes. Experimental reproductive effects.When heated to decomposition it emits toxic vapors ofNOx and SOx.