ceftaroline fosamil - Medications

TEFLARO (ceftaroline fosamil) for injection, is a sterile, semi-synthetic, prodrug of the cephalosporin antibacterial class of beta-lactams (β-lactams) for intravenous use. Chemically, the prodrug, ceftaroline fosamil monoacetate monohydrate is (6 R ,7 R )-7-{(2 Z )-2-(ethoxyimino)-2-[5-(phosphonoamino)-1,2,4-thiadiazol-3-yl]acetamido}-3-{[4-(1-methylpyridin-1-ium-4-yl)-1,3-thiazol-2-yl]sulfanyl}-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate monoacetate monohydrate. Its molecular weight is 762.75. The empirical formula is C 22 H 21 N 8 O 8 PS 4 .C 2 H 4 O 2 .H 2 O. Figure 1: Chemical structure of ceftaroline fosamil Teflaro vials contain either 600 mg or 400 mg of anhydrous ceftaroline fosamil (equivalent to 668 mg and 446 mg, respectively, of ceftaroline fosamil monoacetate monohydrate). The powder for injection is formulated from ceftaroline fosamil monoacetate monohydrate, a pale yellowish-white to light yellow sterile powder. Each vial of 400 mg of anhydrous ceftaroline fosamil includes inactive ingredient L-arginine 263.3 mg/vial as the solubilizer and alkalizing agent. Each vial of 600 mg of anhydrous ceftaroline fosamil includes inactive ingredient L-arginine 395.0 mg/vial as the solubilizer and alkalizing agent. All references to ceftaroline activity are expressed in terms of the prodrug, ceftaroline fosamil. The powder is constituted for IV injection [see Dosage and Administration ( 2.3 )] . The pH of the constituted solution is pH 4.8 to 6.5. Figure 1: Chemical structure of ceftaroline fosamil