• Radhika Sane, David Baribeault, and Carol L Rosenberg.
• Department of Pharmacy, Boston Medical Center, Boston, Massachusetts 02118, USA. Radhika.Sane@BMC.org
• Pharmacotherapy. 2007 Apr 1;27(4):613-5.

AbstractA 67-year-old woman with iron deficiency anemia required parenteral iron therapy and was treated with intravenous ferric gluconate. She tolerated the first dose, but after the second dose, she developed a tingling feeling all over her body, along with swelling in her hands and feet, and a rash with hives over most of her body. It was thought that she had likely experienced a hypersensitivity reaction to ferric gluconate. The decision was made to continue therapy; however, two modifications were made. The patient was given dexamethasone, diphenhydramine, and ibuprofen 1 hour before administering the third dose, and the infusion time was prolonged by 1 hour. Approximately 45 minutes after the infusion was completed, the patient developed hives on her arms and legs. At the patient's next clinic visit, it was decided that continuation of parenteral iron repletion was necessary, and the decision was made to attempt a challenge with iron sucrose. The patient was given dexamethasone 8 mg to be taken the night before and the morning of treatment. She successfully completed the iron repletion therapy with iron sucrose. Three parenteral iron products are available in the United States: iron dextran, sodium ferric gluconate complex, and iron sucrose. Iron dextran, the oldest of these products, carries the highest risk for hypersensitivity reactions. Available data suggest that either iron sucrose or ferric gluconate can be safely administered to patients with known hypersensitivity to iron dextran. Our patient's experience implies that it may be possible to safely administer iron sucrose to a patient with hypersensitivity to ferric gluconate. This finding has clinical implications and warrants confirmation in a larger population.

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