Komfer-Fol

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Komfer-Fol

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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 Komfer-Fol

Property Description
Active ingredients Ferric Proteinsuccinylate, Leucovorin Calcium
Form Oral Solution or Capsules
Pharmacological class Anti-anemia preparation, Hematopoietic stimulant
Common use Correcting combined iron and folate deficiencies
Origin Derived/Synthetic

Komfer-Fol is a prescription-only combination medication classified as an anti-anemia preparation and hematopoietic stimulant. Its fundamental purpose is to supply the body with two essential micronutrients simultaneously, supporting the necessary processes for healthy blood production. This preparation is recognized in medical practice for its use in patients diagnosed with coexisting iron and folate deficiencies.


What Type of Medicine is Komfer-Fol? (Identity and Classification)

Komfer-Fol is categorized as a hematopoietic stimulant and belongs to the pharmacological class of combined iron and folate supplements. This compound medication is specifically designed to address nutritional deficiencies that impair the production of red blood cells. Pharmacological studies have supported the clinical utility of combining these agents, particularly to streamline hematinic therapy for patients requiring concurrent supplementation. Unlike single-ingredient products, Komfer-Fol integrates two complementary active pharmaceutical ingredients into one formulation.

The Dual Active Ingredients: Ferric Proteinsuccinylate and Leucovorin Calcium (Composition and Form)

The preparation contains two active ingredients: Ferric Proteinsuccinylate and Leucovorin Calcium. Ferric Proteinsuccinylate serves as the iron source (in the Fe^3+ form), utilizing a protein-bound structure for controlled release during digestion. Leucovorin Calcium provides folinic acid, which is an active folate derivative that is immediately available for the body's metabolic processes. This active form is a crucial distinction, as it bypasses metabolic steps required by standard folic acid. Komfer-Fol is available for the oral route of administration, typically formulated as an oral solution or sometimes as capsules.

General Therapeutic Purpose: A Focused Supplement Strategy (General Benefit)

Komfer-Fol’s general therapeutic purpose is to quickly restore adequate levels of the primary raw materials—iron and active folate—needed to maintain the integrity and function of the hematopoietic system. By correcting these dual deficiencies, the body is supported in carrying out efficient erythropoiesis, the complex process by which new red blood cells are formed. This focused strategy aims to replenish reserves and support the overall capacity for oxygen transport throughout the body.

What side effects are possible with Komfer-Fol?

Possible Side Effects and Safety Information

Komfer-Fol, as a combination of an iron source and an active folate derivative, has a safety profile characterized by the adverse reactions officially documented for both components. The following safety information is derived from government-approved prescribing documents and regulatory classifications.


Frequency and System-Organ Classes

The most frequently documented adverse effects are classified as common and primarily affect the Gastrointestinal System. These include indigestion, nausea, vomiting, diarrhea, constipation, abdominal pain, flatulence, and heartburn. A known, non-harmful finding with oral iron is the darkening of the stools; the oral solution may also cause blackening of the teeth.

Rare adverse effects are documented, primarily involving the Skin and Immune System (e.g., skin rash, hives, itching) and the Nervous System (e.g., convulsions or seizures).


Serious Safety Considerations and Restrictions

In rare instances, severe hypersensitivity or anaphylactoid reactions are noted as potential serious adverse reactions.

A critical safety restriction is that the folate component is improper therapy for pernicious anemia (Vitamin B12 deficiency), as it may mask the condition's progression by correcting the hematological signs while allowing neurological damage to continue. The active folate component is also officially documented to potentially diminish the effect of certain antiepileptic medications (e.g., phenytoin, primidone) by lowering their plasma concentrations.


Population-Specific Safety Notes

Regulatory documents include specific notes for certain populations. In older adults, oral iron preparations may increase the risk of constipation. For pediatrics, there is a documented potential for the folate component to increase seizure frequency in children taking antiepileptic drugs. Caution is also advised regarding the use of the medicine during pregnancy and lactation, as its safety is not fully established.

Overdose and Emergency Response

Overdose involving Komfer-Fol is formally documented to carry the risk of severe, multi-systemic toxicity, primarily due to the iron component. Documented overdose presentations may initially include severe gastrointestinal symptoms such as vomiting, diarrhea, and abdominal pain. These manifestations can rapidly progress to systemic effects, including central nervous system depression, drowsiness, lethargy, Hypotension, and Tachycardia.

The official regulatory profile emphasizes the potential for life-threatening outcomes, including the onset of Shock, Metabolic Acidosis, Acute Liver Failure, Renal Failure, Seizures, and Coma. Due to this rapid and severe progression, official labeling mandates that individuals must seek immediate medical attention or call a Poison Control center right away upon any suspected overdose, regardless of the severity of initial symptoms.

Specific emergency response protocols are formally described. Management involves Symptomatic and Supportive Treatment and the official use of the antidote Deferoxamine for iron chelation therapy. This treatment, which may include procedures like Whole Bowel Irrigation and Intravenous fluids for resuscitation, requires hospital monitoring of Vital Signs, Serum Iron Levels, and LFTs. Furthermore, the official labeling notes a critical, population-specific risk: the potential for fatal poisoning in children younger than age 5 following accidental ingestion.

Therapeutic Uses of Komfer-Fol

What Komfer-Fol Treats: Main Uses and Benefits

Komfer-Fol is commonly used to address anemia and related symptoms stemming from the coexisting deficiency of both iron and active folate. This combination supports the body in addressing the systemic imbalance that causes the deficiency and is applied in addressing nutritional deficiency anemia. The core therapeutic indications include iron-deficiency anemia, macrocytic anemia due to folate shortfall, and the management of nutritional anemia in pregnant women.

In situations involving systemic imbalance, Komfer-Fol helps ease the overall symptom burden. The medication is relevant for easing symptom clusters that may become intense or disruptive, such as extreme tiredness (fatigue), lack of energy (lethargy), and associated symptoms like headaches or palpitations. Used in clinical contexts marked by increased physiological stress, the medication provides supportive relief when symptoms interfere with routine activities.

“The intent of this combination is to support patients who may be experiencing significant symptomatic fluctuations.”


Quick Fact: Relief for Systemic Fatigue The medication assists with maintaining functional stability and contributes to improved comfort during periods of heightened symptoms associated with anemia.

Eligibility and Restrictions for Use

Who Can and Cannot Use Komfer-Fol?

This section describes the official population eligibility and exclusion criteria for Komfer-Fol (Ferric Proteinsuccinylate and Leucovorin Calcium), as defined by governmental regulatory documents.


Populations for Whom Use is Contraindicated

Komfer-Fol must not be used in individuals with conditions that lead to iron overload, such as hemochromatosis or hemosiderosis. It is also strictly contraindicated for patients with uncontrolled vitamin B12 deficiency (pernicious anemia), as the folate component may mask neurological symptoms. Additionally, use is prohibited in cases of hypersensitivity to the active ingredients and in patients whose anemia is not caused by nutritional deficiency (e.g., aplastic anemia, thalassemia, or sideroachrestic anemia).


Age-Related and Condition-Based Restrictions

Population Group Official Eligibility Status
Adults Established population for treating coexisting iron and folate deficiencies.
Children under 6 years Contraindicated. Use is not established in this age group.
Severe Renal/Hepatic Impairment Not recommended for use in patients with severe kidney or liver dysfunction.
Pregnancy/Lactation Generally permitted for treating confirmed nutritional anemia due to dual deficiency, although caution is sometimes advised during lactation.

Older adults generally follow the eligibility criteria for the general adult population.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory information documents that Komfer-Fol is associated with two distinct classes of interaction, arising from its dual active components.

Exposure-Modifying Interactions (Iron Component)

The Ferric Proteinsuccinylate component is associated with exposure-modifying interactions that result in a reduced bioavailability and systemic absorption of many orally administered medicines. The regulatory profile specifically notes a reduced exposure for agents such as Tetracycline and Fluoroquinolone antibiotics, the thyroid hormone Levothyroxine, and certain cardiovascular agents like Captopril.

This absorption interference necessitates specific timing-based administration rules. To mitigate the effect, the iron component must be administered at least two hours before Antacids and either two hours before or four hours after Tetracycline antibiotics.

Pharmacodynamic and Antagonistic Interactions (Folate Component)

The Leucovorin Calcium component establishes pharmacodynamic antagonism with certain medicinal products. Co-administration with antiepileptic drugs (e.g., Phenytoin, Phenobarbital) may formally counteract the antiepileptic effect, leading to a documented risk of increased seizure frequency; this risk is specifically noted in susceptible children. This component may also be associated with counteracted effects when co-administered with certain antifolate antimicrobial agents.

Food and Supplementation Interactions

Iron absorption is officially documented to be inhibited by dietary components such as phytates (in grains) and tannins (in tea and coffee). Conversely, the co-administration of Vitamin C (Ascorbic Acid) is officially documented to enhance the absorption of the iron component.

Mechanism of Action

The mechanism of Komfer-Fol involves the concurrent metabolic replacement of two essential cofactors that participate in red blood cell production within the hematopoietic tissue.


Replenishing Core Substrates for Hemoglobin Synthesis

This domain covers the role of Ferric Proteinsuccinylate in supplying bioavailable Fe^3+ as a direct substrate. The mechanism acts within the Heme Synthesis Pathway by ensuring the rate-limiting iron component is available for incorporation into the protoporphyrin structure. This action is essential for increasing the blood’s functional capacity to bind and transport oxygen.


Activating the DNA Replication and Cell Maturation Pathway

This domain addresses the action of Leucovorin Calcium (active folate) as a crucial coenzyme. By providing the reduced folate derivative 5-formyl-THF, the mechanism bypasses the standard metabolic activation step, immediately supplying the necessary one-carbon units for the synthesis of DNA bases (Purines and Thymidine). This action supports the unimpeded nuclear division and maturation of red blood cell precursors, resolving the cellular deficit in DNA synthesis.


Functional Synergy and Systemic Oxygen Transport

The final physiological effect is mediated by the functional synergy between the two components. Iron supplies the structural component for O2 binding, while active folate supplies the cofactor required for the cell to mature and divide. The concurrent influence on both limiting factors supports the normalization of Erythropoiesis, resulting in the systemic release of functional, mature red blood cells and a measurable increase in Oxygen Transport Capacity.

Dosage and Administration Information

How Komfer-Fol is Used (Official Administration Guidelines)

Komfer-Fol is designed to be administered exclusively through the oral route, consistent with its formulation as an oral solution or capsules. The use of this drug is structured by specific official instructions to optimize the absorption of its dual components: Ferric Proteinsuccinylate (iron) and Leucovorin Calcium (active folate).


Administration Scope

Instruction Detail
Route of administration Oral route only.
Dosing schedule One unit dose is typically administered once daily (q.d.).
Timing in relation to meals Must be taken on an empty stomach, preferably 30 minutes before meals, to maximize iron absorption.
Preparation requirements The oral liquid may be mixed with water or fruit juice and consumed via a straw to reduce the risk of temporary tooth staining from the iron component.
Course duration Treatment typically spans 3 to 6 months, continuing until underlying iron and folate stores are fully replenished.

Key Procedural Conditions

Administration is subject to specific timing and co-administration rules. The oral dosage of the Leucovorin component is limited, as absorption saturates above approximately 25 mg in a single dose. Furthermore, the drug should not be co-administered with substances that inhibit iron absorption, such as antacids, milk, tea, coffee, or calcium supplements; antacids should be separated by at least 2 hours. If a dose is missed, the standard protocol is to skip it if it is almost time for the next scheduled dose, and not double the dose.

Recent Clinical Evidence

Research evidence / Overview of studies for Komfer-Fol

Evidence for Use in Anemia from Combined Iron and Folate Deficiency

Clinical research comprises randomized controlled trials (RCTs) and systematic reviews that explored patient-reported experiences related to anemia. The combination was studied for individuals who have a diagnosed shortfall in both essential nutrients.

Studies were designed to monitor and measure changes in hematological biomarkers, such as Hemoglobin and serum ferritin levels. Research also examined iron absorption and applied in studies examining patient-reported outcomes describing perceived discomfort, which often includes fatigue and lack of energy linked to systemic or functional imbalance. Research describes changes measured during the study period, monitoring these physiological indicators. Findings describe patterns observed in the studies related to the changes in these blood markers over defined time intervals.

However, certain knowledge gaps exist. A volume of the available systematic evidence was associated with the primary iron component (Ferric Proteinsuccinylate) alone, not the specific combined formulation with Leucovorin Calcium. Therefore, the comparative evidence is lacking when assessing this combination against other similar treatments. Also, many of the results apply only to the populations studied, meaning that the full picture of how symptoms evolved in the observed populations in varied settings is still emerging.

Evidence for Use in Managing Nutritional Anemia During Pregnancy

The combination was studied for its application in pregnant women managing nutritional anemia, a condition marked by functional limitations. The research in this area includes specific clinical trials and information drawn from large-scale Cochrane systematic reviews focused on iron and folate supplementation during pregnancy.

Studies monitored outcomes related to the mother's hematological status and also investigated infant health outcomes, such as birthweight. Research examined temporary physiological imbalance over follow-up durations that spanned several months of the gestational period. Studies report how symptoms evolved in the observed populations, and data show patterns related to the monitored blood parameters. The evidence contributes to the broader research landscape regarding combined iron and folate supplementation in this population.

Data are still emerging, and there are distinct areas where certainty remains low. For instance, evidence is limited regarding the specific impact on severe maternal anemia and on rare adverse infant outcomes. Subgroup findings are uncertain because many systematic reviews indicate that very little information was reported in the trials regarding these critical outcomes.

Frequently Asked Questions (FAQ)

Common questions about Komfer-Fol (FAQ)

Q: Can I drink coffee while taking Komfer-Fol?

A: Regulatory documents indicate that the absorption of the iron component in Komfer-Fol may be inhibited by certain substances found in food and drinks. Specifically, official information states that tannins, which are found in coffee and tea, can interfere with how the body takes in the iron. To help prevent reducing the absorption of the iron component, the administration of Komfer-Fol is usually separated from the consumption of these beverages.


Q: Are there any specific foods I should avoid while on Komfer-Fol?

A: Regulatory documents indicate that the absorption of the iron component may be reduced by certain dietary items. These include phytates (found in grains) and tannins (in tea and coffee). Additionally, official guidance recommends separating the medicine from common items like antacids, milk, and calcium supplements by at least a few hours.


Q: What happens if I stop taking Komfer-Fol suddenly?

A: Komfer-Fol is generally prescribed for a defined course, typically 3 to 6 months, to fully replenish the body's essential nutrient stores. Official documents provide guidance for missed doses (not doubling a dose) but generally do not detail the specific effects of stopping treatment abruptly. The goal of the therapy is to replenish nutrient stores, and stopping before the defined course is complete may mean that the deficiency and associated symptoms are not fully resolved.


Q: What is the difference between how Komfer-Fol works and how older drugs in the same class work?

A: The difference primarily lies in the type of folate component used. Komfer-Fol contains Leucovorin Calcium, which is an active folate derivative (folinic acid). According to regulatory documents, this active form bypasses a metabolic step required by standard folic acid to become biologically active. This feature supports immediate availability for the body's metabolic processes.


Q: What is the experience of people taking Komfer-Fol according to online forums?

A: Official research evidence includes the monitoring of patient-reported outcomes from clinical trials, which inform regulatory documents. These studies specifically track patient experiences related to the condition being treated, such as perceived discomfort and symptoms like fatigue, which are associated with nutrient imbalance. This information is used by regulators to understand the overall profile of the medicine.


Q: Does the time of day I take Komfer-Fol matter?

A: Official guidance indicates that the timing is primarily related to meals. The drug is typically administered once daily. Regulatory information advises that the medicine is administered on an empty stomach, preferably about 30 minutes before a meal, to maximize the absorption of the iron component.


Q: What kind of monitoring is recommended for patients on Komfer-Fol?

A: Regulatory guidelines often recommend the need for monitoring during therapy. This typically focuses on assessing iron parameters and hematological biomarkers (such as Hemoglobin and serum ferritin) before and during the course of treatment. The purpose is to track the progress of the correction of the diagnosed deficiency.


Q: How long does it typically take for Komfer-Fol to start working?

A: The effect involves two different aspects of absorption and recovery. The Leucovorin component is rapidly absorbed, with peak serum levels achieved relatively quickly. However, the restoration of the body's depleted iron and folate stores is a slower process. The primary goal, such as the restoration of blood parameters, is typically monitored over the full defined treatment course, which spans 3 to 6 months.


Q: Can Komfer-Fol affect my sleep?

A: Official regulatory documents do not list specific sleep disorders as a common side effect of Komfer-Fol. However, in rare instances, nervous system effects such as convulsions or seizures are noted. Common side effects, such as gastrointestinal discomfort, may potentially interfere with sleep.


Q: Is Komfer-Fol safe for use in older adults?

A: Official guidance indicates that older adults follow the same general eligibility criteria as the adult population. A specific caution is noted in regulatory documents, however: oral iron preparations may be associated with an increased risk of constipation in this group.


Q: Do I need to get blood tests while taking Komfer-Fol?

A: Regulatory guidance often recommends clinical monitoring while taking this medicine. This typically involves assessing and monitoring iron parameters (such as Hemoglobin and serum ferritin) prior to starting and periodically throughout the course of therapy to track the resolution of the nutrient deficiency.


Q: Can Komfer-Fol be taken by people with kidney issues?

A: According to the official product information, Komfer-Fol is not recommended for use in individuals who have severe kidney or liver dysfunction. The regulatory documents advise caution and exclusion in these severe cases.


Q: Is it possible to be allergic to Komfer-Fol?

A: Yes, official regulatory documents list known hypersensitivity to the active ingredients as a strict contraindication for use. Furthermore, severe hypersensitivity or anaphylactoid reactions are noted as potential, though rare, serious adverse reactions in the official safety profile.


Q: Are there any known interactions between Komfer-Fol and common pain relievers?

A: The iron component in Komfer-Fol is associated with reduced absorption of many orally administered medicines. While the official documents specifically name certain antibiotics and hormones that interact, they do not typically list common over-the-counter pain relievers (like ibuprofen or acetaminophen) as having a documented clinically significant interaction.


Q: How long does Komfer-Fol stay in the system after the last dose?

A: Pharmacokinetic data from studies on the Leucovorin component show that it is eliminated relatively quickly, with the terminal half-life being approximately 5.7 hours. The iron component is intended for absorption and storage to replenish long-term body reserves, and its therapeutic action supports a lasting outcome.


Q: Are the side effects of Komfer-Fol permanent?

A: The most frequently documented adverse effects, such as gastrointestinal upset, are generally classified in regulatory documents as common and temporary. Since the goal of therapy is short-term (3-6 months), side effects are typically expected to resolve once the treatment is completed.


Q: What kind of studies have been done on the long-term effects of Komfer-Fol?

A: Official clinical trials and systematic reviews monitored outcomes related to hematological status and patient experience over follow-up durations that spanned several months. Research evidence primarily focuses on the efficacy and safety profiles throughout the defined 3 to 6-month treatment course and in populations like pregnant women during the gestational period.


Q: Does taking Komfer-Fol make you feel 'dizzy' or 'foggy'?

A: Regulatory documents list central nervous system effects, such as convulsions or seizures, as rare potential adverse events. However, generalized complaints of dizziness or 'foggy' feelings are not typically listed among the common side effects documented in the official prescribing information for Komfer-Fol.


Q: Can I drive or operate machinery while taking Komfer-Fol?

A: Official regulatory documents acknowledge that certain rare side effects, particularly those affecting the nervous system (like convulsions), could potentially impair a patient's ability to drive or operate machinery. Patients are generally advised to be aware of any effects the medication may have on them.


Q: Are there specific storage requirements for Komfer-Fol (like refrigeration)?

A: The official storage instructions state that Komfer-Fol must be stored at controlled room temperature, typically between 20 °C and 25 °C (68 °F and 77 °F). The product must be kept in its original container, tightly closed, and stored away from both light and excessive moisture. Regulatory documents specifically state that freezing and high heat must be avoided.


Q: What research themes are commonly highlighted in official reports about Komfer-Fol?

A: Official reports and systematic reviews highlight several key research themes. These primarily include studies on the effectiveness of the combination in treating anemia from combined iron and folate deficiency, the monitoring of core hematological biomarkers, and the medicine's specific use in managing nutritional anemia during pregnancy.


Q: Is Komfer-Fol related to or similar to drug X (a popular drug name)?

A: Komfer-Fol is officially classified as a hematopoietic stimulant and belongs to the pharmacological class of combined iron and folate supplements. This classification distinguishes it from other medications that may be single-nutrient supplements or belong to different therapeutic categories.


Q: How is Komfer-Fol packaged and sold?

A: According to official regulatory documents, Komfer-Fol is supplied for the oral route of administration and is available in two forms: an Oral Solution or as Capsules. The specific strength and appearance of each formulation are detailed in the official 'How Supplied' section of the product information.

How should Komfer-Fol be stored and disposed of?

The official labeling for Komfer-Fol mandates specific conditions to maintain product stability and ensure household safety.

Official Storage and Handling

Komfer-Fol must be stored at controlled room temperature, typically between 20 °C and 25 °C (68 °F and 77 °F). The product must be kept in its original container, which must remain tightly closed and be stored away from both light and excessive moisture. Freezing and high heat must be avoided. Due to the iron content, a non-negotiable regulatory requirement is to keep Komfer-Fol out of the sight and reach of children to prevent accidental overdose.

Disposal Instructions

Unused or expired Komfer-Fol must be disposed of according to local, regional, and national regulations. Do not flush the medication down the toilet or place it in household trash unless explicitly instructed otherwise. A pharmacist should be consulted for guidance on drug take-back programs.

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

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