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# Iron Sucrose
## Overview
Iron sucrose is an intravenous iron preparation used to treat iron deficiency anemia (IDA). It is administered as an infusion.
## Primary Indications
* Treatment of iron deficiency anemia in patients with conditions such as chronic kidney disease (CKD) on hemodialysis or not, and in patients with other conditions where oral iron is ineffective or not tolerated.
## Adult Dosing
Dosing is highly individualized and depends on the degree of iron deficiency. The total cumulative dose is calculated based on the patient's weight and hemoglobin level.
* **Test Dose:** A test dose of 25 mg elemental iron may be given first, especially in patients with a history of hypersensitivity reactions.
* **Standard Dosing:** Individual doses typically range from 100 mg to 200 mg of elemental iron.
* **Maximum Dose per Administration:** 200 mg elemental iron.
* **Maximum Recommended Dose per Week:** Typically 1000 mg elemental iron.
* **Total Cumulative Dose:** Can range up to 1000 mg to 2000 mg or more, depending on the patient's iron deficit. Specific calculation formulas are widely available and often used locally.
## Pediatric Dosing
Iron sucrose is approved for use in pediatric patients aged 2 years and older with IDA.
* **Dosing per Administration:** Administered in doses of 1.5 mg/kg to 2.5 mg/kg elemental iron.
* **Maximum Dose per Administration:** 100 mg elemental iron.
* **Total Cumulative Dose:** Calculated based on weight and hemoglobin deficit, similar to adults. Local protocols are essential for pediatric dosing.
## Dose Adjustments
* **Renal Impairment:** No dose adjustment is typically required for renal impairment, as it is often used in CKD patients. However, caution is advised regarding potential iron overload.
* **Hepatic Impairment:** Use with caution. Data are limited.
## Contraindications
* Hypersensitivity to iron sucrose or any component of the formulation.
* Anemia not due to iron deficiency.
* Evidence of iron overload.
## Adverse Effects
* **Common:** Hypotension, nausea, vomiting, diarrhea, abdominal pain, headache, dizziness, muscle/joint pain, fever, chills, injection site reactions (pain, swelling, redness).
* **Serious:** Hypersensitivity reactions (including anaphylaxis), bronchospasm, chest pain, urticaria, rash, angioedema, hypotension, bradycardia. Iron overload can occur with repeated doses.
## Key Drug Interactions
* I.V. iron preparations can bind to oral iron supplements, reducing the absorption of oral iron. Administer oral iron at least 5 days after the last dose of IV iron sucrose.
* ACE inhibitors: Hypotensive effects may be potentiated.
## Monitoring
* **Hemoglobin and Hematocrit:** Monitor iron deficiency anemia response.
* **Iron Studies:** Ferritin, transferrin saturation (TSAT).
* **Blood Pressure:** Monitor for hypotension during and after infusion.
* **Signs and Symptoms of Hypersensitivity:** Closely monitor during and after infusion.
* **Signs of Iron Overload:** Especially with prolonged or high-dose therapy.
## Clinical Pearls
* Iron sucrose should be administered slowly to minimize the risk of hypotension and hypersensitivity reactions.
* It is often administered undiluted or diluted in 0.9% sodium chloride. Specific dilution instructions should be followed per manufacturer and local protocol.
* **Ensure the cause of anemia is confirmed to be iron deficiency before initiating treatment.**
* Monitor patients closely for at least 30 minutes after each infusion due to the risk of hypersensitivity reactions.
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*Disclaimer: This information is intended for healthcare professionals. Always consult the most current prescribing information and local institutional protocols before making clinical decisions.*
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