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Safety Issues With Intravenous Iron Products in the Management of Anemia in Chronic Kidney Disease

Amir Hayat, MD, Department of Medicine, Division of Nephrology, SUNY Downstate Medical Center, Brooklyn, New York, USA

Reprint Requests: Amir Hayat, MD, Clinical Research Fellow Nephrology, SUNY Downstate Medical Center, 710 Parkside Avenue, Brooklyn, NY 11226, Tel: 718-703-5915, Fax: 718-703-5935, Email: amirhayat6{at}hotmail.com

Anemia is a very common clinical problem in patients with chronic kidney disease (CKD) and is associated with increased morbidity and mortality in these patients. Erythropoietin is a hormone synthesized that is deficient in the majority of patients with advanced kidney disease, thereby predisposing these patients to anemia. The other cause of anemia is deficiency of iron. Iron deficiency anemia is common in people with CKD and its importance in supporting erythropoiesis is unquestioned, especially in those patients treated with erythropoietin. Intravenous iron is frequently used to treat anemia in CKD patients and is very efficacious in increasing hemoglobin but at the same time there are some safety issues associated with it. The objective of this review is to assess the frequency of adverse drug events associated with four different iron formulations: two iron dextran products known as high and low molecular weight iron dextran, iron sucrose, and sodium ferric gluconate complex. Several electronic databases were searched. In general, with the exception of high molecular weight iron dextran, serious or life-threatening adverse events appeared rare. Iron sucrose has the least reported adverse events and high molecular weight iron dextran has the highest number of reported adverse events. Low molecular weight iron dextran and ferric gluconate fall in between these two for number of adverse drug events.

Key Words: Anemia • Chronic kidney disease • Intravenous iron products • Safety