SPL Set ID: 5aca5508-b577-446c-9980-ab4c7582b4b9

FIRVANQ for oral administration contains the hydrochloride salt of vancomycin, a tricyclic glycopeptide antibiotic derived from Amycolatopsis orientalis (formerly Nocardia orientalis ), which has the chemical formula C 66 H 75 Cl 2 N 9 O 24 •HCl. The molecular weight of vancomycin hydrochloride is 1485.71 g/mol. Vancomycin hydrochloride has the structural formula: Each FIRVANQ kit contains a bottle of vancomycin hydrochloride USP, as white to almost white or tan to brown powder for oral solution, and a bottle of pre‑measured Grape‑Flavored Diluent, in the strengths and volumes listed in Table 3 . Table 3: Vancomycin Strength, Diluent Volume and Vancomycin Concentration after Reconstitution Vancomycin Strength per Bottle Equivalent Amount of Vancomycin Hydrochloride per Bottle Diluent Volume for FIRVANQ Vancomycin Concentration after Reconstitution 3.75 g 3.84 g 147 mL 25 mg/mL 7.5 g 7.7 g 295 mL 7.5 g 7.7 g 145 mL 50 mg/mL 15.0 g 15.4 g 289 mL The Grape‑Flavored Diluent used to reconstitute the oral solution contains: artificial grape flavor, citric acid (anhydrous), D&C Yellow No. 10, FD&C Red No. 40, purified water, sodium benzoate and sucralose. Vancomycin hydrochloride structural formula