Ferrous%252525252525252525252520ascorbate

# Ferrous Ascorbate ## Overview Ferrous ascorbate is a chelated form of iron consisting of iron (Fe2+) and ascorbic acid (vitamin C). The presence of ascorbic acid facilitates the reduction of ferric iron to ferrous iron in the stomach and enhances intestinal absorption, potentially improving bioavailability and reducing gastrointestinal side effects compared to non-chelated ferrous salts. ## Primary Indications * Treatment of iron deficiency anemia (IDA). * Prophylaxis of iron deficiency during pregnancy and lactation. ## Adult Dosing * **Standard dose:** 100 mg (elemental iron) once or twice daily. * **Typical regimen:** 100 mg orally once daily is often sufficient; severe cases may require twice-daily dosing. * **Maximum:** Generally 200 mg of elemental iron daily, though higher doses are sometimes used under strict monitoring. ## Pediatric Dosing * **General guidance:** Dosing is weight-based. * **Typical dose:** 3–6 mg/kg/day of elemental iron, divided into 1–2 doses. * *Note:* Exact pediatric dosing can vary significantly based on local institutional protocols and the severity of the deficiency. Consult a pediatric weight-based chart or hematology guideline for specific age-based requirements. ## Dose Adjustments * **Renal Impairment:** Reduce dose or increase interval if patients are on chronic dialysis or have advanced CKD, as iron overload is a risk. * **Hepatic Impairment:** No specific adjustment; use with caution in patients with iron-loading disorders (e.g., hemochromatosis). ## Contraindications * Hypersensitivity to iron or ascorbic acid. * Hemosiderosis or hemochromatosis (iron overload states). * Hemolytic anemia. * Repeated blood transfusions. ## Adverse Effects * **Common:** Epigastric pain, nausea, constipation, diarrhea, and dark/black stools (expected). * **Serious:** Potential for iron toxicity in overdose (especially in children); allergic reactions (rare). ## Key Drug Interactions * **Absorption inhibition:** Avoid concurrent use (separate by 2–4 hours) with antacids, H2-blockers, PPIs, calcium supplements, and dairy products. * **Quinolones/Tetracyclines:** Iron significantly reduces the absorption of these antibiotics. Separate administration by at least 2 hours before or 4–6 hours after iron ingestion. * **Levodopa/Methyldopa:** Iron may reduce their bioavailability. ## Monitoring * **Hb/Hct:** Assess response 2–4 weeks after initiation. * **Ferritin/Iron studies:** Monitor iron stores; once normalization is achieved, therapy is usually discontinued to prevent overload. * **Safety:** Monitor for GI distress and adherence. ## Clinical Pearls * **Bioavailability:** Vitamin C (ascorbic acid) is already integrated into this formulation, which theoretically eliminates the need to co-administer orange juice or supplemental Vitamin C. * **Administration:** Iron is best absorbed on an empty stomach; however, if GI intolerance occurs, it may be taken with food (accepting a possible reduction in absorption). * **Toxicity:** Pediatric iron poisoning is a medical emergency. Always emphasize "child-resistant" storage. * **Stool color:** Inform patients that stool will turn black/dark; this is harmless but can mask occult blood. *** *Educational Disclaimer: This information is for general educational purposes. Always verify current prescribing information, institutional protocols, and patient-specific contraindications via reliable clinical resources (e.g., Lexicomp, Micromedex, or the product monograph) before prescribing or administering medication.*