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Oral iron supplementation: new formulations, old questions
Abstract
Iron-deficiency anemia and pre-anemic iron deficiency are the most frequent pathologies. The first line of treatment involves oral iron supplementation. The simplest, least expensive, and most commonly prescribed drug is ferrous sulfate, while other ferrous salts and ferric complexes with polysaccharides or succinylated milk proteins are also widely used. In recent years, novel iron formulations have been developed, such as the lipophilic iron donor ferric maltol, or nanoparticle encapsulated sucrosomial® iron. Oral iron supplementation is usually efficacious in correcting iron-deficiency anemia and replenishing iron stores but causes gastrointestinal side effects that reduce compliance. When oral iron supplementation is contraindicated, intravenous iron therapy can rapidly achieve therapeutic targets without gastrointestinal complications. Herein, we critically review literature on relative efficacy and tolerability of currently available oral iron supplements, and summarize recent data on optimal dosage and frequency.
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“This approach bypasses gastrointestinal absorption and can rapidly restore iron levels, but it is costly and should be administered under medical supervision [80].”
From Optimizing Performance Nutrition for Adolescent Athletes: A Review of Dietary Needs, Risks, and Practical Strategies (2025) · cites this paper as [80]
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“74 Thus, iron supplementation may pose a risk in patients with opportunistic or systemic infections.”
BackgroundNon-transferrin bound iron: a key role in iron overload and iron toxicity
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Cited by
Kolarš, B., Mijatović Jovin, V., Živanović, N., Minaković, I., Gvozdenović, N., Dickov Kokeza, I., & Lesjak, M. (2025) · Pharmaceuticals · doi:10.3390/ph18081104 · Cited by 71
Everett, S. (2025) · Nutrients · doi:10.3390/nu17172792 · Cited by 37
Sohail, H., Collins, J. E., Chan, K. H., Alamgir, M. A., & Kamran, A. (2026) · Blood · doi:10.1182/blood.2025031965 · Cited by 8
Metadata
- Authors
- Pantopoulos, K.
- Venue
- Haematologica
- Published
- 2024-04-11
- Volume
- 109
- Issue
- 9
- Pages
- 2790-2801
- ISSN
- 1592-8721
- 0390-6078
- Cited by
- 78
- References
- 12
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