Ferro-Folsan

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Ferro-Folsan

Medically reviewed

Marina Burgos

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 Ferro-Folsan

Property Description
Active ingredients Ferrous Sulfate, Folic Acid
Form Film-coated tablet (Oral preparation)
Pharmacological class Hematinic, Antianemic preparation
General purpose Correcting combined Iron and Folate deficiencies
Origin Synthetic compounds

Ferro-Folsan is a fixed-dose combination product classified as a hematinic and an antianemic preparation, utilized to supply essential micronutrients required for healthy blood production. This medicine is an oral preparation, commonly manufactured as a film-coated tablet. It is classified as a therapeutic agent used to correct specific nutritional deficits that impair the body's ability to manufacture functional blood cells.

What Type of Medicine is Ferro-Folsan?

Ferro-Folsan is categorized as a fixed-dose combination product within the antianemic preparation pharmacological class. This classification confirms its role in supporting the critical biological process of erythropoiesis (red blood cell formation). Unlike single-ingredient products, this combination is recognized for providing both necessary substrates concurrently for the synthesis of healthy blood cells, a formulation often emphasized for patient adherence. The active components are primarily synthetic compounds manufactured for pharmaceutical use.


The Composition: Ferrous Sulfate and Folic Acid

The composition of Ferro-Folsan centers on the two active ingredients: Ferrous Sulfate and Folic Acid (Vitamin B9). The Ferrous Sulfate component delivers a highly absorbable form of elemental Iron, which is foundational for creating hemoglobin. The Folic Acid component is a crucial B vitamin necessary for DNA synthesis and the rapid division of new cells. The product is specifically positioned to address deficiencies where the need for both Iron and Folate coexists, such as nutritional support for individuals with increased demands.


General Purpose and Benefit

The general purpose of Ferro-Folsan is to support and restore the body's natural capacity to produce sufficient oxygen-carrying red blood cells. By simultaneously providing both Iron and Folic Acid, the preparation helps overcome the specific nutritional shortfalls that compromise the quality and quantity of blood formation. This restorative action addresses the basic physiological requirement for these materials, ensuring the maintenance of adequate hemoglobin synthesis for oxygen transport throughout the body.

Regulatory References

  1. WHO Essential Medicines List
  2. Iron Supplements: MedlinePlus Drug Information

What side effects are possible with Ferro-Folsan?

Possible Side Effects and Safety Information

The safety profile of this fixed-dose combination, containing Ferrous Sulfate and Folic Acid, is officially documented to include several categories of adverse reactions and specific usage restrictions.


Documented Adverse Reactions

Adverse effects are most commonly documented in the Gastrointestinal Disorders System-Organ Class. These common effects often include nausea, vomiting, constipation, diarrhea, and abdominal discomfort. The appearance of darkened stools (black stools) is an expected and harmless physical consequence of oral iron therapy.

Classification Examples of Documented Effects
Common Nausea, vomiting, constipation, diarrhea, abdominal pain
Not Known Severe allergic reactions (anaphylaxis), mouth or esophageal ulceration

Serious Adverse Reactions and Safety Constraints

The most serious documented risk is the high potential for fatal poisoning from accidental overdose of iron-containing products, particularly in young children, which is subject to a mandatory regulatory warning. Serious local injury, such as ulceration of the esophagus or bronchus, is a risk documented to occur if the tablet is aspirated or retained during swallowing.

Official regulatory documents place contraindications on the use of this medicine in patients with pre-existing iron-overload conditions, such as haemochromatosis, or those with active peptic ulcers or severe inflammatory bowel disease. Furthermore, the Folic Acid component may obscure the diagnosis of Vitamin B12 deficiency (pernicious anemia) by temporarily normalizing the blood picture while allowing neurological damage to progress. Specific safety precautions are noted for older adults and individuals with difficulty swallowing due to the risk of esophageal injury.

Overdose and Emergency Response

Overdose and When to Seek Help

The official overdose information for Ferro-Folsan is predominantly defined by the acute toxicity of the Ferrous Sulfate (Iron) component. The Folic Acid component is not considered a source of acute toxicity in overdose.

Documented Overdose Manifestations

Classification Manifestations
Early (Gastrointestinal) Vomiting (may be bloody), severe abdominal pain, bloody diarrhea, lethargy.
Late (Systemic) Hypotension (low blood pressure), tachycardia, metabolic acidosis, seizures, shock, and coma.

Accidental overdose of iron-containing products is cited by regulatory bodies as a leading cause of fatal poisoning in children younger than 6 years of age. Serious outcomes include multi-organ failure, hepatic necrosis (liver damage), and cardiovascular collapse.

Required Emergency Actions

Immediate medical attention is required in case of suspected overdose. Ingestion of elemental iron doses greater than 40 mg/kg is considered potentially serious and necessitates contacting a Poison Control Center or emergency services right away. Urgent help must be sought if a child has accidentally swallowed a tablet, or if the individual experiences breathing difficulty or a seizure. The systemic antidote, Deferoxamine, is indicated for severe toxicity, and supportive measures, such as monitoring serum iron levels and decontamination procedures like gastric lavage, are used during hospital management.

Therapeutic Uses of Ferro-Folsan

Main Uses of Ferro-Folsan

Ferro-Folsan is a combination medication primarily used for the prevention and treatment of combined iron and folic acid deficiencies. This medication is specifically formulated to address conditions where the body lacks sufficient levels of these two essential nutrients simultaneously.

Treatment of Iron Deficiency Anemia

The primary component, iron, is used to treat iron deficiency anemia. This condition occurs when the body does not have enough iron to produce hemoglobin, the protein in red blood cells that enables them to carry oxygen throughout the body. Ferro-Folsan helps to replenish iron stores and support the production of healthy red blood cells.

Prevention of Folic Acid Deficiency

The folic acid (Vitamin B9) component is included to prevent and treat folate deficiency. Folic acid is vital for cell division and the formation of DNA. A deficiency in folic acid can lead to megaloblastic anemia, a condition characterized by the production of abnormally large red blood cells that do not function properly.

Use During Pregnancy and Lactation

Ferro-Folsan is commonly utilized during pregnancy and the postpartum period. During these stages, the body's demand for both iron and folic acid increases significantly to support fetal development and the increased blood volume of the mother. It is used to:

  • Support Fetal Development: Folic acid is essential for the proper development of the neural tube in the early stages of pregnancy.
  • Prevent Maternal Anemia: Supplementation helps maintain adequate hemoglobin levels in the mother, reducing the risk of fatigue and other symptoms associated with anemia.

Benefits for Overall Health

By addressing deficiencies in iron and folic acid, Ferro-Folsan supports several physiological functions:

  • Energy Metabolism: Iron is a key factor in how the body converts nutrients into energy.
  • Cognitive Function: Maintaining adequate iron levels is associated with normal cognitive performance and concentration.
  • Immune System Support: Both iron and folic acid play roles in maintaining a functional immune system.

Regulatory References

  1. NIH MedlinePlus guidance

Eligibility and Restrictions for Use

Official Eligibility Profile: Ferro-Folsan

Ferro-Folsan is indicated for use only in individuals with documented iron and/or folic acid deficiency. Official regulatory documents define specific populations that are restricted or prohibited from using this medicine.


Contraindicated Populations (Must Not Use)

Classification Exclusion Criteria (Must Not Use)
Iron Overload Individuals with conditions of iron excess, such as hemochromatosis or hemosiderosis (excessive iron storage).
Gastrointestinal Disease Patients with severe, active inflammatory conditions of the GI tract, including peptic ulceration, ulcerative colitis, or regional enteritis.
Anemia Type Cases of anemia not caused by iron deficiency (non-iron-deficiency anemia), as folic acid may mask symptoms of Vitamin B12 deficiency (e.g., pernicious anemia).
Hypersensitivity Known allergy or hypersensitivity to ferrous fumarate, folic acid, or any excipients.
Transfusion Patients receiving repeated blood transfusions due to the risk of iron accumulation.
Pediatric Use Children under 6 years of age.

Special Considerations (Use with Caution)

Use of Ferro-Folsan requires special caution and medical oversight in patients with existing renal impairment or hepatic impairment (liver disease). The eligibility structure mandates that the deficiency diagnosis must be confirmed prior to beginning treatment to avoid complications from inappropriate iron administration.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documents define the interaction profile of Ferro-Folsan based on the potential for its components to interfere with the absorption and effectiveness of other medicines, and vice-versa. The most significant interactions are pharmacokinetic, resulting in changes to blood levels of co-administered drugs.

Documented Interacting Categories and Implications

Interacting Medicine Category Interaction Mechanism and Effect Regulatory Requirement (Constraint)
Antibiotics (Tetracyclines, Fluoroquinolones) Iron forms chelates with these drugs, significantly reducing the absorption of both the antibiotic and the iron component. A time interval of at least 2 to 3 hours must separate the administration of Ferro-Folsan and these antibiotics.
Thyroid Hormones (e.g., Levothyroxine) Iron reduces the absorption of thyroid hormones, decreasing their plasma concentration and efficacy. Administration should be separated by at least 2 hours.
Gastric pH Modifiers (Antacids, PPIs, H2-antagonists) These agents reduce stomach acidity, which in turn reduces the absorption of the iron component. Administration should be separated by at least 2 hours.
Other Metal Salts/Supplements (e.g., Calcium, Zinc) Compete with or reduce the absorption of the iron component. Administration should be separated by at least 2 hours.

Certain combinations are subject to specific restrictions. Co-administration of oral iron with parenteral iron preparations is not permitted. Concomitant use with the chelating agent Dimercaprol is also restricted due to the potential formation of toxic complexes. Furthermore, the folic acid component may reduce the plasma concentrations of certain anticonvulsant drugs (e.g., Phenytoin), requiring close monitoring and potential dose adjustment of the anticonvulsant.

Mechanism of Action

How Ferro-Folsan Works

Ferro-Folsan delivers ferrous iron and folic acid, both acting as precursors essential for erythropoiesis. Ferrous fumarate is absorbed predominantly in the duodenum and upper jejunum via DMT1 (Divalent Metal Transporter 1) and enters the body's iron pool. This systemic iron is necessary for the rate-limiting step of heme synthesis, a critical component of hemoglobin. Iron is subsequently transported in the blood bound to transferrin and stored intracellularly, primarily in the liver, bound to ferritin.

Folic acid (Vitamin B9) is metabolically reduced to tetrahydrofolate (THF). THF functions as a co-enzyme, mediating the transfer of one-carbon units required for the de novo synthesis of thymidylate and purines. These nucleic acid building blocks are necessary for cell replication and DNA synthesis, processes which drive the maturation and proliferation of red blood cell precursors.

Dosage and Administration Information

How to Use Ferro-Folsan

Ferro-Folsan is an oral preparation administered as a tablet or capsule, and its usage protocol is defined by specific guidelines governing timing and physical administration. The product must be swallowed whole with water and must not be chewed, sucked, or held in the mouth.

The dosing regimen is typically once daily for preventative use, or in divided doses up to two to three times daily when treating an established deficiency. For optimal absorption, the preparation is ideally taken on an empty stomach (e.g., at least one hour before or two hours after a meal). However, if needed to improve gastrointestinal tolerance, the tablet may be administered alongside food. Furthermore, the medicine should be taken separately from absorption-interfering substances, such as dairy products, tea, coffee, and antacids.

Usage over time is intended as a corrective course; the treatment should generally continue for a duration of at least one additional month after clinical and laboratory correction of the deficiency to fully replenish nutritional stores. Dosage for older adults typically follows the same regimen as for adults, and the standard adult tablet formulation is not recommended for children. If a dose is missed, it is advised to take it as soon as possible, but it is explicitly stated that a double dose should not be taken to compensate.

Recent Clinical Evidence

Ferro-Folsan: Recent Clinical Evidence

Ferro-Folsan is a combined preparation containing ferrous sulfate (an iron salt) and folic acid (a B vitamin), which are essential for the production of red blood cells. Clinical research primarily investigates this type of oral iron/folate combination for the prevention and treatment of iron deficiency anemia (IDA) and folate deficiency.

Clinical and Bioavailability Studies

Studies focused on the pharmacokinetics and absorption of the components in healthy volunteers. A randomized, cross-over study examining a combination preparation (similar to Ferro-Folsan) found that the bioavailability of the iron component was approximately 64% when compared to a reference ferrous sulfate-ascorbic acid solution. The bioavailability of the folic acid component was assessed at 97% relative to intramuscular administration, demonstrating effective oral absorption.

Therapeutic Efficacy in Anemia

Large-scale clinical evidence supports the efficacy of oral iron salts, such as ferrous sulfate, as a first-line treatment for uncomplicated, mild to moderate IDA. The addition of folic acid is often evaluated to support erythropoiesis, especially in cases of suspected or confirmed mixed nutritional deficiencies.

  • Iron Component: Research in patients with IDA consistently shows that oral ferrous sulfate can correct hemoglobin levels, restore red cell indices, and replenish iron stores over several months of therapy.
  • Folic Acid Component: Folic acid is fundamental for DNA synthesis and cell proliferation, including red blood cell precursors. Its combination with iron is widely indicated for use during pregnancy, lactation, and in conditions where increased folate demands exist.

Tolerability Considerations

Clinical data on oral ferrous iron supplements, including those combined with folic acid, frequently note the occurrence of gastrointestinal side effects, such as nausea, constipation, and abdominal discomfort. These effects are often linked to unabsorbed iron in the gut and are a common reason for reduced patient adherence to the regimen. Newer research explores alternate-day dosing strategies to potentially maximize iron absorption and minimize gastrointestinal side effects, though the standard daily dose remains a common practice.

Frequently Asked Questions (FAQ)

Common questions about Ferro-Folsan (FAQ)


Q: How is Ferro-Folsan different from just taking a regular iron pill?

Ferro-Folsan is officially described as a fixed-dose combination product. This means it contains two active ingredients: an iron salt (Ferrous Sulfate) and Folic Acid (a B vitamin). A regular iron pill, by contrast, typically contains only the iron component. The combination formulation is intended to provide both necessary nutrients concurrently to support the process of blood cell formation.


Q: What is the difference between Ferro-Folsan and a standard prenatal vitamin?

According to official documentation, Ferro-Folsan is a therapeutic agent specifically indicated for the correction of documented iron and folate deficiencies. Standard prenatal vitamins are generally broad nutritional supplements intended for overall dietary support. The drug’s classification indicates its role is to address a confirmed deficiency, whereas prenatal vitamins are typically used for general nutritional support.


Q: Can Ferro-Folsan be taken with other vitamin supplements?

Official drug information suggests that certain other metal salt supplements, such as calcium or zinc, can interfere with iron absorption, requiring administration to be separated by at least two hours. Certain supplements, such as Vitamin C (ascorbic acid), are sometimes noted in regulatory reviews for their potential to support the absorption of iron.


Q: Is the iron in Ferro-Folsan elemental iron?

The active iron-containing ingredient in Ferro-Folsan is the salt known as Ferrous Sulfate. This compound is used to deliver a specific amount of elemental iron, which is the form the body uses for essential functions like creating hemoglobin.


Q: Can men take Ferro-Folsan, or is it only for women?

Official regulatory documents indicate Ferro-Folsan is for use in any individual who has a documented iron and/or folic acid deficiency. The eligibility profile lists restrictions based on specific medical conditions (like iron overload or certain anemias), but the indication is not limited based on gender.


Q: Can people with kidney issues take Ferro-Folsan?

Official drug safety information lists renal impairment (kidney disease) as a Special Consideration. This implies that while it may not be strictly prohibited, its use requires special caution. Because of this, treatment in individuals with renal impairment is subject to medical oversight.


Q: What should someone do if they miss a day of taking Ferro-Folsan?

Regulatory instructions advise taking the missed dose as soon as possible after realizing the omission. However, if it is already close to the time of the next scheduled dose, the individual should skip the missed dose entirely. Official instructions explicitly state that a double dose must not be taken to compensate.


Q: Are there different strengths or doses of Ferro-Folsan available?

Ferro-Folsan is typically manufactured as a fixed-dose combination in a standard tablet strength for adult use. While the tablet strength is usually fixed, the regimen—such as once daily or in divided doses—is defined by guidelines and medical oversight based on the deficiency.


Q: Is Ferro-Folsan considered a vitamin or a medication?

Ferro-Folsan is officially categorized as a fixed-dose combination product within the antianemic preparation pharmacological class. While it contains the essential B vitamin Folic Acid, its official purpose is that of a therapeutic agent (medication) used to correct specific nutritional deficiencies that affect blood production.


Q: How long does it typically take to see any effect from Ferro-Folsan?

Clinical data related to oral iron therapy indicates that the initial onset of action, or the start of the body's blood-building response, may be noticeable within several days to one week. The full correction of the deficiency and restoration of nutrient stores typically takes place over several months of continued therapy.


Q: Has Ferro-Folsan been studied in older adults?

Official regulatory documents include specific guidance for this population, stating that the dosage for older adults typically follows the same regimen as for adults. This inclusion implies that its use in this population is covered by official guidance and experience.


Q: Is a metallic taste in the mouth a known side effect of Ferro-Folsan?

Official documentation for this combined preparation frequently lists Gastrointestinal Disorders, such as nausea and abdominal pain, as common adverse effects. However, a metallic taste is not specifically listed among the documented common or known adverse reactions in the official safety profile.


Q: Is Ferro-Folsan a generic or a brand-name drug?

Ferro-Folsan is considered a brand-name preparation for a drug containing the two generic active ingredients: Ferrous Sulfate and Folic Acid. This combination of active ingredients may be available under various brand names depending on the regulatory region.


Q: Does Ferro-Folsan affect how my birth control works?

Official interaction documents for the active ingredients—ferrous sulfate and folic acid—do not list hormonal contraceptives (birth control) as a documented interaction that requires separation of dosing or monitoring.


Q: Can Ferro-Folsan cause any skin reactions or itching?

The official safety profile mentions the rare possibility of severe allergic reactions, such as anaphylaxis. Milder skin reactions or itching are not typically detailed among the common adverse effects listed in the official documentation.


Q: What is the most common reason people stop taking Ferro-Folsan?

Clinical data often points to gastrointestinal side effects, such as nausea, constipation, and abdominal discomfort, as a common factor. These effects are frequently cited as a cause of reduced patient adherence to the iron treatment regimen.


Q: Can Ferro-Folsan change the color of urine?

Official documents explicitly state that the appearance of darkened stools (black stools) is an expected and harmless physical consequence of oral iron therapy. Changes to the urine color are not mentioned in the expected effects or common adverse reactions.


Q: Does drinking coffee or tea affect the absorption of Ferro-Folsan?

Yes, administration guidelines recommend taking the medicine separately from tea and coffee. This separation is advised because these beverages contain substances that can interfere with the absorption of the iron component, which may lead to reduced effectiveness of the medication.


Q: What is the purpose of the coating on the Ferro-Folsan tablet?

Ferro-Folsan is manufactured as a film-coated tablet. The coating is generally added to help the tablet be swallowed whole without being chewed, and to potentially help mask the taste or protect the iron component as it passes through the throat.


Q: Is there a link between Ferro-Folsan and headaches?

Headaches are not listed among the documented common or known adverse reactions in the official safety profile for this fixed-dose combination preparation.


Q: Does Ferro-Folsan have any potential interaction with alcohol?

Official information indicates a moderate interaction risk. Excessive or chronic alcohol consumption may contribute to folate deficiency, and there are reports that it can also increase folic acid elimination or decrease its absorption.

How should Ferro-Folsan be stored and disposed of?

Storage and Disposal Requirements for Ferro-Folsan

Ferro-Folsan (Ferrous Sulfate/Folic Acid) must be stored under specific regulatory conditions to maintain its integrity.


Storage Conditions

Requirement Official Instruction
Temperature Store at a temperature not exceeding 25°C (Controlled Room Temperature).
Protection Keep the medicine in its original container, tightly closed, and protect from light and moisture to avoid degradation.
Child Safety Due to the severe risk of iron poisoning, the product must be kept out of the sight and reach of children at all times.

Disposal

Unused or expired Ferro-Folsan should not be disposed of via wastewater or household waste (trash) unless instructed to do so by local regulation. The official recommendation is to return the medicine using a community drug take-back program or consult a pharmacist for guidance on proper pharmaceutical waste disposal.

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

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