What Is the First-Line Treatment of Iron-Deficiency Anemia?
Clinical scenario
Iron-deficiency anemia occurs when depleted iron stores impair red-blood-cell production, lowering hemoglobin. First-line management aims to restore iron stores through supplementation, with choice of formulation and dosing schedule guided by tolerability and cost.
Treatment approach (partial overview)
The first-line strategy centers on oral iron supplementation. One specific salt formulation is recommended as the preferred starting choice based on cost. Dosing frequency is calibrated to balance absorption with patient tolerability, and a well-known co-supplement is added to enhance uptake.
The complete structured protocol — preferred formulation, dosing schedule, the co-supplement, and escalation criteria — is available in full via the link below.
Response targets
Adherent patients are expected to show a measurable hemoglobin rise within the first two weeks of therapy. Ferritin recovery is expected within a month. Failure to reach either threshold signals a need for escalation to an alternative route of iron delivery.
References
DOI: 10.1016/j.cgh.2024.03.046
- No single formulation of oral iron has any advantages over any other. Ferrous sulfate is preferred as the least expensive iron formulation.
- Give oral iron once a day at most. Every-other-day iron dosing may be better tolerated for some patients with similar or equal rates of iron absorption as daily dosing.
- Add vitamin C to oral iron supplementation to improve absorption.
- The ferrous iron salts (ferrous sulfate, ferrous fumarate, and ferrous gluconate) are a reasonable choice to start with because they are often the least expensive.
- In anemic patients, hemoglobin levels should increase by 1 g/dL within 2 weeks in adherent patients on oral iron supplementation.
- A reasonable expectation is ferritin should increase in a month, and if these parameters are not met then IV iron should be used.
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