Cofafer

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Cofafer

Method of action: Antianemic

Treatment option: Iron Deficiency

Medically reviewed

Laura Arias

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Cofafer

Quick Facts

Property Description
Active Ingredient Iron Dextran (Iron(III)-hydroxide dextran complex)
Form Injectable solution (Sterile liquid complex)
Pharmacological Class Parenteral Iron Replacement Product; Hematinic
Common Use Replenishment of systemic iron stores
Origin Synthetic (chemically complexed)

Cofafer is the trade name for the prescription injectable medicine Iron Dextran, which belongs to the class of Parenteral Iron Replacement Products. It is a hematinic, designed to raise the body's iron stores and support the production of oxygen-carrying proteins.


What Type of Medicine is Cofafer? (Identity and Classification)

Cofafer is a prescription-only drug defined by its active ingredient, Iron Dextran. This compound is a synthetic colloidal complex created in a laboratory where ferric hydroxide is stabilized by a Dextran carbohydrate shell. The formulation is characterized by a high molecular weight structure, which facilitates a controlled delivery of iron. Unlike common oral supplements, its classification as a Parenteral Iron Replacement Product means it is administered through injection, bypassing the digestive system entirely. This distinctive feature is its capability to deliver a large quantity of iron to the body’s iron-storage system in a stable form.


Composition and Form: What is Iron Dextran Made Of? (Composition and Form)

Cofafer is supplied as a sterile injectable solution, a liquid formulation with an aqueous base designed for parenteral administration (either intravenous or intramuscular). The medicine is a single-ingredient product, containing only the Iron Dextran complex as the pharmacologically active component. This complex structure is a combination of ferric oxyhydroxide and a dextran component. As an injectable solution, its composition is optimized for entry into the bloodstream, a differentiator from tablet forms.


What is the General Purpose of Cofafer? (High-Level Benefit)

The general purpose of Cofafer is to act as an iron delivery system to replenish systemic iron reserves quickly and reliably. By making iron available for cellular uptake, the medicine supports the biological processes required for hemoglobin production and the formation of new red blood cells. This sustains the body's capacity for effective oxygen transport, addressing the physiological deficit caused by chronic or severe iron scarcity, such as when iron deficiency is not adequately managed by oral therapy.

What side effects are possible with Cofafer?

Possible side effects and safety information

The safety profile for Iron Dextran (Cofafer) is formally defined by the potential for serious hypersensitivity reactions. Regulatory documents, including the FDA Prescribing Information, highlight the risk of anaphylactic-type reactions, including fatalities, and acute severe anaphylactoid reactions. These severe systemic reactions most often occur within the first several minutes of administration.

Adverse effects are officially categorized by frequency and system-organ class. Reactions classified as Uncommon include gastrointestinal effects such as nausea and abdominal pain, as well as skin reactions like pruritus (itching) and flushing. Less frequent reactions, classified as Rare, involve arrhythmia, hypotension, seizure, and dizziness. In addition to immediate risks, a separate set of flu-like symptoms, including fever, headache, and myalgia (muscle pain), may have a delayed onset of 24 to 48 hours following administration.

Specific Safety Constraints exist for certain patient groups. The medicine is contraindicated in individuals with known iron overload (hemochromatosis) or anemias not due to iron deficiency, and in patients with decompensated liver cirrhosis. For pregnant women, severe maternal reactions may result in fetal bradycardia, particularly during the second and third trimesters. Caution is also noted for patients with a history of significant allergies and/or asthma.

Overdose and Emergency Response

Overdose Scope

Domain Official Regulatory Statement
Documented overdose presentations Overdose symptoms are officially classified into two types: Acute, immediate reactions (e.g., severe hypotension, circulatory failure, respiratory difficulty, and potential cardiac arrest) and delayed reactions [FDA Label]. Delayed manifestations, typically 1–2 days post-administration, include arthralgia, fever, headache, myalgia, and chills [MedlinePlus].
Physiological systems affected (as stated in label) Documented systems affected include the Cardiovascular system (shock, hypotension), Respiratory system (dyspnea, wheezing), and Neurological system (seizure) [FDA Label].
Dose-related or exposure-related factors (if applicable) Excessive therapy can lead to the chronic outcome of hemosiderosis (excess storage of iron) [FDA Label].
Population-specific overdose notes (if applicable) Severe reactions in pregnant women, including circulatory failure, may cause fetal bradycardia. Adverse reactions may exacerbate cardiovascular complications in patients with pre-existing cardiovascular disease [FDA Label].
Emergency-response statements (as written in official documents) Resuscitation equipment and personnel trained to treat severe reactions must be readily available during administration. The injection must be discontinued immediately if signs of intolerance occur [FDA/EMA Consistent Information].
When immediate medical help is required (label-derived phrasing only) Seek immediate medical attention or call a Poison Control Center if severe symptoms such as collapse, seizure, trouble breathing, or inability to be awakened occur [MedlinePlus Drug Information].

Overdose Classifications (High-Level)

Classification Official Regulatory Statement
Severity classification (as defined in official documents) Overdose and acute toxicity are associated with life-threatening fatalities and cardiovascular collapse [FDA Label].
Regulatory basis (EMA / FDA / etc.) The basis for emergency requirements is the FDA Prescribing Information (Boxed Warning and Overdosage Section) and global regulatory guidance.
Overdose-context constraints (as defined in official documents) Treatment is generally symptomatic and supportive. Periodic monitoring of iron parameters is required to prevent chronic iron overload [FDA Label].

Resulting Overdose Structure

Official overdose statements:

  • The primary regulatory concern involves life-threatening acute toxicity, characterized by circulatory failure and respiratory difficulty, necessitating immediate medical attention for severe symptoms.
  • Documents mandate that resuscitation equipment and personnel must be available to manage acute toxicity risks, which have been reported to be fatal.
  • Excessive long-term iron administration may result in hemosiderosis, requiring periodic monitoring of iron parameters to mitigate chronic overdose risk.

Connection to the overall overdose profile: Regulatory documents define the Iron Dextran overdose profile around the mandated immediate management of severe, documented acute reactions and the long-term risk of iron overload. This structure requires specific emergency preparedness and patient observation to define when urgent medical help must be sought.

Therapeutic Uses of Cofafer

What Cofafer Treats: Main Uses and Benefits

Cofafer is generally used for the management of documented iron deficiency, a condition characterized by a shortage of iron necessary for creating oxygen-carrying red blood cells. This injection is commonly reserved for cases where oral iron administration has been unsatisfactory or impossible.

The medication is commonly used to help treat Severe Iron Deficiency Anemia (IDA) that is chronic or unresponsive to oral supplements. It is relevant in scenarios involving iron malabsorption, such as in patients with Inflammatory Bowel Disease (IBD) or following bariatric surgery, as well as in individuals with certain chronic conditions like Non-Dialysis Dependent Chronic Kidney Disease (CKD). The therapeutic domain focuses on patients with a significant lack of iron necessary for making oxygen-carrying blood cells. By addressing the underlying deficit, Cofafer helps to relieve debilitating symptom clusters, including pronounced chronic fatigue, reduced physical endurance, and specific neurological issues like Restless Legs Syndrome or pica. This use provides supportive benefit when the primary absorption pathway is compromised.

“This treatment helps ease the overall symptomatic burden and may assist with maintaining day-to-day comfort.”

Quick Fact: Relief for Anemia Symptoms
Symptom Focus Profound fatigue, physical weakness, and reduced stamina associated with low oxygen transport.
Therapeutic Benefit Supports the replenishment of iron stores necessary for managing the anemia and easing functional strain.
Context Applied when oral iron is not feasible due to malabsorption or patient intolerance.

Regulatory References

  1. Iron Dextran Injection: MedlinePlus Drug Information

Eligibility and Restrictions for Use

Cofafer's eligibility is strictly defined by regulatory documents, allowing its use only when oral iron therapy is unfeasible, ineffective, or contraindicated. The medicine is primarily approved for adults and pediatric patients age 4 months and older who have documented iron deficiency.

Contraindicated Populations

Patients must not use Cofafer if they have:

  • Known hypersensitivity to iron dextran or any component.
  • Existing iron overload (e.g., hemosiderosis or haemochromatosis).
  • Anemias that are not associated with iron deficiency (e.g., hemolytic anemia).
  • The acute phase of infectious kidney disease.

Age and Condition Restrictions

Use is not recommended for infants under 4 months of age, as safety and effectiveness have not been established in this population. Use must proceed with extreme caution in patients with serious liver function impairment. Conditional use with caution is also required for those with pre-existing cardiovascular disease, rheumatoid arthritis, or a history of significant allergies or asthma.

Pregnancy and Lactation Status

For pregnancy, the medicine is classified as Category C, meaning its use is restricted to cases where the potential benefit justifies the potential risk. Treatment is generally confined to the second or third trimester. Caution is advised for nursing mothers, as trace amounts of the drug may be excreted into human milk.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documentation identifies specific medicinal products, classes, and diagnostic tests that interact with Iron Dextran (Cofafer), requiring strict management or procedural awareness.


Documented Drug and Substance Interactions

Interacting Substance/Class Official Interaction Statement Restriction Classification
Oral Iron Preparations Reduces the gastrointestinal absorption and therapeutic effect of the oral iron product. Restricted Concomitant Use
ACE Inhibitors (e.g., Enalapril, Lisinopril) Concomitant use may increase the patient's risk for an anaphylactic-type reaction. Use with Caution/Increased Risk

Timing and Procedural Constraints

  1. Oral Iron Therapy Separation: Oral iron therapy must not be initiated earlier than five days after the final injection of Cofafer to prevent interference with the oral product's absorption.
  2. Diagnostic Test Interference: Iron Dextran formally interferes with certain clinical diagnostic tests. Large doses may cause falsely elevated values for serum bilirubin and falsely decreased values for serum calcium.
  3. Serum Iron Determination: Serum iron concentration assays, particularly colorimetric assays, may not yield meaningful results for up to three weeks following the administration of Cofafer.
  4. Bone Scan Results: The injection can interfere with ^99 m Tc-labeled bone scans, potentially causing reduced bony uptake and excessive soft tissue accumulation.

Note on Population-Specific Interactions: Official regulatory labels do not specify that the severity of these documented interactions is differentially heightened or unique to a specific patient population, such as those with hepatic impairment or the elderly.

Mechanism of Action

How Cofafer Works

The action of Cofafer (Iron Dextran) is centered on the rapid, controlled delivery of elemental iron ( Fe^3+), acting as a prodrug that directly augments the iron metabolism and oxygen transport systems. Its mechanism differs from conventional receptor-based pharmacology by focusing on nutrient substrate provision.


Specialized Delivery via the Reticuloendothelial System

Cofafer's high-molecular-weight colloidal complex is rapidly engulfed by specialized immune cells known as macrophages within the Reticuloendothelial System (RES). These cells internally process the complex through endocytosis and slowly cleave the Dextran shell to liberate the iron via controlled enzymatic degradation. This controlled release mechanism restricts the rate of iron dissociation, maintaining stability during systemic distribution and minimizing the immediate formation of free iron.


Direct Augmentation of Iron Homeostasis and Transport

Once released from the macrophages, the iron immediately binds to the body's main transport protein, Transferrin, thereby augmenting the circulating functional iron pool. This mechanism provides a significant increase in the circulating iron supply, bypassing the slow, tightly regulated absorption process of the gut. The physiological effect is an efficient, targeted supply of the essential substrate to the body's storage sites (Ferritin) and utilization centers.


Substrate Provision for the Erythropoiesis Cascade

The transported iron is delivered specifically to Erythroid Precursors in the bone marrow, where it is incorporated into the Heme structure of the Hemoglobin molecule. This direct provision increases the rate of the final steps of red blood cell maturation. The core physiological consequence is a direct increase in the blood's oxygen transport capacity, directly linked to the synthesis of Hemoglobin molecules.

Dosage and Administration Information

How to use Cofafer: Administration Guidelines

Established guidelines define the required steps and dosing rules for the correct use of Cofafer. Adherence to these instructions structures the complete treatment course.


Administration Requirements

Guideline Instruction
Route of Administration Oral (by mouth)
Dosing Schedule (Adults) One tablet
Frequency and Timing Once daily, at approximately the same time each day
Meal Condition Must be taken with food
Preparation None (tablet is taken whole)

Procedural and Missed Dose Instructions

The full procedure for administration is standardized:

  1. Take one tablet of Cofafer.
  2. Administer the dose by mouth.
  3. Take the tablet with food.
  4. Consume the dose at approximately the same time each day.

Missed Dose Protocol:

If a daily dose is forgotten, the instructions dictate the following action: take the dose as soon as it is remembered, unless the time is less than 12 hours before the next scheduled dose. In this specific case, the missed dose should be skipped, and the regular daily schedule should be resumed.

These instructions define the operational structure for administering the medicine and completing the therapeutic course.

Recent Clinical Evidence

Research evidence / Overview of studies for Cofafer


Evidence for Iron Deficiency Anemia Unresponsive to Oral Iron

Research into Cofafer (Iron Dextran) has focused on patients diagnosed with Iron Deficiency Anemia (IDA) who were enrolled in studies because they had not responded well to, or could not tolerate, taking iron supplements by mouth. The evidence base includes Randomized Controlled Trials (RCTs) and comprehensive Systematic Reviews that evaluate intravenous iron delivery against oral supplements or standard care.

Studies were conducted over time intervals ranging from a few weeks up to several months. Researchers primarily monitored shifts in key biomarkers: Hemoglobin (Hb) levels and Ferritin and Transferrin Saturation (TSAT), which are used to assess iron status. The findings describe patterns observed where patients receiving the injectable treatment had measurable increases in both their Hemoglobin and iron storage levels. Study results reflect the specific conditions under which they were conducted, and research does not determine whether an individual will respond similarly.


Evidence for Anemia with Malabsorption or Chronic Conditions

Cofafer was evaluated in specific patient populations where conditions, such as Inflammatory Bowel Disease (IBD) or post-bariatric surgery status, affect the body's ability to absorb nutrients. Studies monitored outcomes related to systemic or functional imbalance, such as changes in Hemoglobin, as well as patient-reported outcomes describing perceived discomfort. The data describe patterns related to the changes measured in iron biomarkers in these cohorts.


Research in Specific Subgroups, Including Pregnancy

Cofafer was evaluated in pregnant women who had documented IDA and were enrolled due to oral iron failure or intolerance, primarily during the second and third trimesters. Research described patterns related to maternal outcomes, including changes in Hemoglobin levels before delivery and the rate of blood transfusions. The product was also evaluated in some pediatric patients who met specific criteria for severe IDA. Comparative evidence is lacking for certain study designs, and data for some groups remain insufficient.


Evidence Gaps and Areas of Uncertainty

While research describes the product's use in patients who need to alter their iron status, long-term effects are not fully established. Follow-up durations were limited in many key trials, meaning the data available provide limited insight into the need for future treatment cycles. Findings were sometimes varied in studies comparing Iron Dextran directly against other intravenous iron products.

Key Studies & References

  1. Intravenous or oral iron for treating iron deficiency anaemia during pregnancy: systematic review and meta-analysis
  2. Iron management in chronic kidney disease (KDIGO Guideline Excerpt)

Frequently Asked Questions (FAQ)

Common questions about Cofafer (FAQ)

Q: Is it safe to store Cofafer in the refrigerator?

According to official product information, unopened vials of Cofafer are required to be stored at controlled room temperature, which is typically maintained between 15 C and 30 C (59 F and 86 F). The product should also be protected from freezing, as freezing can compromise the solution's integrity.

Q: Does Cofafer affect my ability to operate a car or machinery (cause drowsiness)?

Official regulatory documents list adverse effects such as dizziness and seizure as rare reactions to Cofafer. Because these effects could potentially affect motor skills or alertness, caution is noted in regulatory information regarding activities like operating a car or machinery.

Q: Is Cofafer safe to use for anemia that is not caused by iron deficiency?

The medicine is contraindicated for patients with anemias that are not associated with iron deficiency (for example, hemolytic anemia), meaning its use is restricted in these cases. Cofafer is designed to address deficiencies in the body's iron supply, which is why official regulatory documents state it should not be used for other types of anemia.

Q: Can I give Cofafer to my 2-year-old child if they have severe iron deficiency?

Official labeling for Cofafer specifies that it is approved for pediatric patients age 4 months and older who have documented iron deficiency. Safety and effectiveness have not been established in infants under 4 months of age, and use is generally restricted in this specific population.

How should Cofafer be stored and disposed of?

Cofafer, which is a trade name for Iron Dextran injection, must be stored and disposed of according to strict official regulatory guidelines.

Storage Conditions

The unopened vials must be stored at controlled room temperature, typically maintained between 15 C and 30 C (59 F and 86 F). The product must be protected from freezing, as freezing can compromise the solution's integrity. If the vial is a multi-dose type, some labels require the remaining contents to be used within a limited period, such as 90 days after the first puncture.

Handling and Disposal

The medicine must always be kept out of the reach of children. Before use, the solution must be visually inspected for particulate matter. Any unused product or waste material must be disposed of in accordance with local requirements. Official guidance advises against flushing medicines down the toilet or drain unless explicitly instructed by the label. Needles and syringes must be placed immediately into a designated sharps container.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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