One vial contains 500 mg desferrioxamine methane sulphonate.
The active substance is N-[5-(3-[(5-aminopentyl)-hydroxycarbamoyl]-propionamido)pentyl]-3-([5-(N-hydroxyacetamido)-pentyl]-carbamoyl)-propionohydroxamic acid monomethane sulphonate (= desferrioxamine methane sulphonate).