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# Ferrous Ascorbate
## Overview
Ferrous ascorbate is a combination of iron (ferrous form) and ascorbic acid. Ascorbic acid enhances the absorption of elemental iron.
## Primary Indications
Treatment and prevention of iron deficiency anemia.
## Adult Dosing
* **Treatment of iron deficiency anemia:** Dosing is based on elemental iron. Typical dose is 100-200 mg of elemental iron per day, divided into 1-2 doses. This often equates to 300-600 mg of ferrous ascorbate per day.
* **Prevention of iron deficiency anemia:** Typical dose is 60-100 mg of elemental iron per day. This often equates to 200-400 mg of ferrous ascorbate per day.
* *Exact dosing is dependent on institutional protocols and individual patient response.*
## Pediatric Dosing
* **Treatment of iron deficiency anemia:** 3-6 mg of elemental iron per kg per day, divided into 2-3 doses. Maximum dose is typically 100 mg of elemental iron per day. Ascorbic acid dose is typically 100-250 mg per day.
* *Consult pediatric guidelines for specific age and weight-based dosing.*
* **Prevention of iron deficiency anemia:** 1-2 mg of elemental iron per kg per day. Maximum dose is typically 30 mg of elemental iron per day.
## Dose Adjustments
No dose adjustment is typically required for renal or hepatic impairment, but caution is advised and monitoring is essential due to potential for iron overload.
## Contraindications
* Hemochromatosis and other causes of iron overload.
* Hypersensitivity to ferrous ascorbate or any component of the formulation.
* Concurrent treatment with oral iron therapy is generally contraindicated.
## Adverse Effects
* **Gastrointestinal:** Constipation, diarrhea, nausea, vomiting, abdominal pain, dark stools (expected and harmless).
* **Other:** Metallic taste, staining of teeth (with liquid formulations).
## Key Drug Interactions
* **Tetracyclines and Doxycycline:** Iron significantly reduces absorption; separate administration by at least 2 hours.
* **Levothyroxine:** Iron can decrease absorption; separate administration by at least 4 hours.
* **Proton Pump Inhibitors (PPIs) and H2 Blockers:** May decrease gastric acidity, potentially reducing iron absorption, although ascorbic acid largely mitigates this.
* **Antacids:** Can interfere with iron absorption; separate administration.
* **Antiepileptic Drugs (e.g., Phenytoin):** Iron may decrease serum concentrations of some AEDs.
## Monitoring
* **Hemoglobin and Hematocrit:** Monitor response to therapy.
* **Ferritin and Iron Studies:** Assess iron stores and identify iron overload.
* **Signs and symptoms of anemia:** Monitor for improvement.
* **Signs and symptoms of GI distress:** Assess tolerance.
## Clinical Pearls
* Administer on an empty stomach for optimal absorption, but can be taken with food if GI upset occurs.
* Ascorbic acid in the formulation enhances iron absorption, particularly in individuals with achlorhydria or on acid-suppressive therapy.
* Iron therapy should ideally continue for 3-6 months after normalization of hemoglobin to replete iron stores.
* Accidental overdose in children is a leading cause of poisoning deaths; keep out of reach of children.
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**Disclaimer:** This information is intended for healthcare professionals and should not be used as a substitute for professional medical advice. Always consult current prescribing information and relevant guidelines before making any treatment decisions. Dosing and recommendations may vary.