Ferric citrate is an iron-based compound that is used to treat iron deficiency and iron overload in people with chronic kidney disease. It has a molecular formula of Fe(C6H5O7)3 and is a white powder. It is often used as an oral supplement and is available in a variety of forms, such as tablets and capsules. Ferric citrate can help to increase the body’s iron stores, and can also help to reduce the risk of developing anemia. It has been approved by the US Food and Drug Administration (FDA) for use in adults and children.
Ferric citrate is a medication that acts in two main ways depending on the medical condition being treated:
1. Phosphate Binder:
- Function: Ferric citrate binds to phosphate in the digestive system, preventing it from being absorbed into the bloodstream [1, 2, 3].
- Applications: This is primarily beneficial for people with chronic kidney disease (CKD), especially those on dialysis. Dialysis removes some phosphate from the blood, but often not enough to maintain healthy levels. High phosphate levels can lead to bone problems, heart disease, and strokes [1, 2]. Ferric citrate helps control blood phosphate levels and prevent these complications.
2. Iron Supplement (for specific cases):
- Function: Ferric citrate also contains iron, which the body can absorb to replenish iron stores and aid in red blood cell production [2, 3].
- Applications: In some cases of CKD, particularly for adults not on dialysis, ferric citrate can address both iron deficiency anemia (low red blood cell count) and high phosphate levels simultaneously [2].
Key characteristics of Ferric Citrate:
- Form: It typically comes as tablets or capsules taken orally [2, 3].
- Dosage: The dosage depends on individual needs and is determined by a doctor [2].
Important Considerations:
- Side effects: Ferric citrate can cause side effects like stomach pain, constipation, diarrhea, and dark stools [2, 3].
- Alternatives: There are other phosphate binders and iron supplements available. A doctor will recommend the most suitable option based on your specific condition.
- Consult a doctor: If you have CKD or experience symptoms of iron deficiency, it's crucial to consult a doctor for proper diagnosis and treatment plan. They can determine if ferric citrate is the right medication for you.
Overall, ferric citrate is a valuable medication for managing phosphate levels in CKD, especially for those on dialysis. In some cases, it can also address iron deficiency anemia in CKD patients. However, consulting a doctor for diagnosis and treatment plan is always essential.