SPL Set ID: 641bad60-9b9e-43ea-936e-5c38f27835b2

Ciprofloxacin and dexamethasone (ciprofloxacin 0.3% and dexamethasone 0.1%) sterile otic suspension contains the quinolone antimicrobial, ciprofloxacin hydrochloride, combined with the corticosteroid, dexamethasone, in a sterile, preserved suspension for otic use. Each mL of ciprofloxacin and dexamethasone otic suspension, USP contains ciprofloxacin hydrochloride, USP (equivalent to 3 mg ciprofloxacin base), 1 mg dexamethasone, USP, and 0.2 mg benzalkonium chloride (50%) as a preservative. The inactive ingredients are boric acid, sodium chloride, hydroxyl ethyl cellulose, tyloxapol, acetic acid, sodium acetate trihydrate, edetate disodium, and water for injection. Sodium hydroxide or hydrochloric acid may be added for adjustment of pH. Ciprofloxacin, a quinolone antimicrobial is available as the monohydrochloride monohydrate salt of 1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)-3-quinoline carboxylic acid. The molecular formula is C 17 H 18 FN 3 O 3 •HCl•H 2 O. The molecular weight is 385.82 g/mol and the structural formula is: Figure 1: Structure of Ciprofloxacin Dexamethasone, 9-fluoro-11(beta),17,21-trihydroxy-16(alpha)-methylpregna-1,4-diene-3,20-dione, is a corticosteroid. The molecular formula is C 22 H 29 FO 5 . The molecular weight is 392.46 g/mol and the structural formula is: Figure 2: Structure of Dexamethasone spl-ciprofoxacin-structure spl-dexamethasone-structure