Each mL of solution for IV injection contains complex ferric hydroxide with sucrose equivalent to elemental iron 20 mg and water for injection.
Maxifer is a brown, sterile, aqueous, complex of polynuclear iron (III)-hydroxide in sucrose for IV use. Iron sucrose injection has a molecular weight of approximately 34,000-60,000 daltons and a structural formula of [Na2Fe5O8(OH)·3(H2O)]n·m(C12H22O11) where n is the degree of iron polymerization and m is the number of sucrose molecules associated with the iron (III)-hydroxide.
Maxifer contains approximately sucrose 30% w/v (300 mg/mL) and has a pH of 10.5-11.1. It contains no preservatives. The osmolarity of the injection is approximately 1250 mOsmol/L.