(cefsure 1gm Injection) ceftazidime injection usp 1 gm sterilised water for injection
Ceftazidime is a semisynthetic, broad-spectrum, beta-lactam antibiotic for parenteral administration. It is the pentahydrate of pyridinium, 1-[[7-[[(2-amino-4-thiazolyl)[(1-carboxy-1-methylethoxy)imino]acetyl]amino]-2-carboxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methyl]-, hydroxide, inner salt, [6R-[6α,7β(Z)]]. It has the following structural formula:
The molecular formula is C22H32N6O12S2, representing a molecular weight of 636.6.
Ceftazidime for injection, USP is a sterile, dry-powdered mixture of ceftazidime pentahydrate and sodium carbonate. The sodium carbonate at a concentration of 118 mg/g of ceftazidime activity has been admixed to facilitate dissolution. The total sodium content of the mixture is approximately 54 mg (2.3 mEq)/g of ceftazidime activity.
Ceftazidime for injection, USP in sterile crystalline form is supplied in vials equivalent to 1 g or 2 g of anhydrous ceftazidime. Ceftazidime for injection, USP is a white to cream-colored crystalline powder. Solutions of ceftazidime for injection, USP range in color from light yellow to amber, depending on the diluent and volume used. The pH of freshly constituted solutions usually ranges from 5 to 8.