SPL Set ID: 5a74d7e9-1ca2-37dd-cbcf-d7fde1f5a606

Micafungin for injection, USP is a sterile, white to off white lyophilized powder or cake for intravenous (IV) infusion that contains micafungin sodium USP. Micafungin sodium USP is a semisynthetic lipopeptide (echinocandin) synthesized by a chemical modification of a fermentation product of Coleophoma empetri F-11899. Micafungin inhibits the synthesis of 1,3-beta-D-glucan, an integral component of the fungal cell wall. Each single-dose vial contains 50 mg micafungin (equivalent to 50.86 mg micafungin sodium USP) or 100 mg micafungin (equivalent to 101.73 mg micafungin sodium USP), 200 mg lactose monohydrate, with citric acid and/or sodium hydroxide (used for pH adjustment). Micafungin for injection, USP must be diluted with 0.9% Sodium Chloride Injection, USP, or 5% Dextrose Injection, USP [ see Dosage and Administration (2) ]. Following reconstitution with 0.9% Sodium Chloride Injection, USP, the resulting pH of the solution is between 5-7. Micafungin sodium USP is chemically designated as: Pneumocandin A0,1-[(4 R ,5 R )-4,5-dihydroxy- N 2 -[4-[5-[4-(pentyloxy) phenyl]-3-isoxazolyl]benzoyl]-L-ornithine]-4-[(4 S )-4-hydroxy-4-[4-hydroxy-3-(sulfooxy)phenyl]-L-threonine]-, monosodium salt. The chemical structure of micafungin sodium USP is: The empirical/molecular formula is C 56 H 70 N 9 NaO 23 S and the formula weight is 1292.27. Micafungin sodium USP is a light-sensitive, white to almost white amorphous powder that is soluble in water, practically insoluble in ethanol and in ethyl acetate. Micafungin sodium structural formula