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. Author manuscript; available in PMC: 2009 Nov 1.
Published in final edited form as: Am J Med. 2008 Nov;121(11):943–948. doi: 10.1016/j.amjmed.2008.07.012

Table 5.

Iron replacement dose estimates.

A. Estimated total oral dose of elemental iron for anemia correction. Additional dosing cycle(s) of 5000mg may be required to replenish iron stores.
Hemoglobin (g/dl) Elemental Iron Total dose (mg)*
> 11 5000

9-11 10,000

< 9 15,000
B. Calculation based upon total blood volume and hematocrit (Hct)

Total iron deficit = Iron stores deficit + Hemoglobin iron deficit
Iron stores deficit = 500-1000 mg
Hemoglobin iron deficit = body wt (lb) × (target Hb - actual Hb)
Target Hb 14 g/dl.

Oral elemental iron replacement estimate (mg) = 10 × total iron deficit
*

assuming 10% absorption, 60 kg patient.