IV Fe deficiency Individualized dose. Determine cumulative Fe need (Ganzoni formula is recommended for patient w/ anorexia nervosa, cachexia, obesity, pregnancy or anaemia due to bleeding).
Patient weighing ≥70 kg w/ Hb ≥100 g/L 1,500 mg,
Hb <100 g/L 2,000 mg.
Patient weighing 50 to <70 kg w/ Hb ≥100 g/L 1,000 mg,
Hb <100 g/L 1,500 mg.
IV bolus inj Max: 500 mg at administration rate up to 250 mg/min, up to 3 times wkly.
IV drip infusion Max: 20 mg/kg single infusion. Cumulative Fe dose >20 mg/kg: Split in 2 administrations w/ at least 1-wk interval; give 20 mg/kg in the 1st administration whenever possible. Doses ≤1,000 mg: Administer over 20 min. Doses >1,000 mg: Administer ≥30 min.