Please check your internet connection and try again.
# Ferrous Ascorbate
## Overview
Ferrous ascorbate is an iron salt of ascorbic acid. The presence of ascorbic acid (Vitamin C) lowers gastric pH and acts as a reducing agent, converting ferric iron to the more absorbable ferrous state, theoretically enhancing bioavailability compared to standard ferrous sulfate.
## Primary Indications
* Treatment of iron deficiency anemia (IDA).
* Prophylaxis of iron deficiency in states of increased requirements (e.g., pregnancy).
## Adult Dosing
* **Treatment of IDA:** 100 mg (elemental iron) once or twice daily.
* **Maintenance/Prophylaxis:** 50–100 mg once daily.
* **Maximum:** Generally 200 mg elemental iron per day unless directed by a specialist. Dosing is highly dependent on institutional protocols and the severity of the hemoglobin deficit.
## Pediatric Dosing
* **Treatment of IDA:** 3–6 mg/kg/day of elemental iron divided into 1–3 doses.
* *Note:* Pediatric dosing is highly variable based on weight and hemoglobin levels; consult institutional weight-based guidelines or local pediatric hematology protocols.
## Dose Adjustments
* **Renal Impairment:** No specific adjustment required, but use with caution in patients with history of iron overload (e.g., hemochromatosis, chronic dialysis).
* **Hepatic Impairment:** Use with caution; monitor for potential accumulation if iron metabolism is impaired.
## Contraindications
* Hypersensitivity to iron salts or ascorbic acid.
* Hemochromatosis, hemosiderosis, or any condition involving iron overload.
* Hemolytic anemias or anemias not caused by iron deficiency (e.g., sideroblastic anemia, lead-induced anemia).
* Patients receiving repeated blood transfusions.
## Adverse Effects
* **Gastrointestinal:** Nausea, abdominal pain, constipation, diarrhea, and dark/black stools (expected).
* **General:** Tooth discoloration (liquid formulations; rinse mouth after use).
* **Overdose:** Potentially fatal in children; symptoms include severe vomiting, hematemesis, shock, and metabolic acidosis.
## Key Drug Interactions
* **Antacids/PPIs/H2-Blockers:** Decrease iron absorption; separate by at least 2 hours.
* **Quinolones/Tetracyclines:** Iron chelates these antibiotics, significantly reducing their efficacy; separate doses by 2–4 hours (or per specific antibiotic labeling).
* **Levodopa/Methyldopa:** Iron may reduce absorption/biomarker effectiveness.
## Monitoring
* **Hemoglobin/Hematocrit:** Recheck 2–4 weeks after initiation.
* **Ferritin:** Recheck once hemoglobin levels have normalized to ensure adequate iron stores (full replenishment may take 3–6 months).
* **Adverse effects:** Monitor patient tolerance to GI symptoms.
## Clinical Pearls
* **Absorption:** Best absorbed on an empty stomach (1 hour before or 2 hours after meals). If GI intolerance occurs, administer with food, though this may decrease absorption.
* **Stool color:** Inform patients that dark stools are a harmless side effect of iron therapy.
* **Storage:** Keep in a child-proof container; iron overdose is a leading cause of pediatric poisoning fatalities.
***
**Educational Disclaimer:** This information is for educational purposes only. Always verify dosing and indications against current, institutional-specific prescribing information, the product package insert, and clinical decision support software before prescribing or administering medication.
