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Сорбифер Дурулес

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Сорбифер Дурулес

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Treatment option: Anemia, Iron Deficiency

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.

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Overview of Сорбифер Дурулес

What is Сорбифер Дурулес?

Сорбифер Дурулес is a combined hematinic preparation used to address iron deficiency within the body. It is formulated as a combination of ferrous sulfate and ascorbic acid (vitamin C), designed to support the production of hemoglobin and the transport of oxygen in the blood.

Composition and Mechanism

The effectiveness of the preparation is based on the synergy between its two primary components:

  • Ferrous Sulfate: This provides a source of elemental iron, an essential mineral required for the synthesis of hemoglobin in red blood cells. Iron is a central component of the heme group, which binds oxygen in the lungs and releases it into tissues.
  • Ascorbic Acid (Vitamin C): This component is included to improve the absorption of iron from the gastrointestinal tract. Ascorbic acid helps maintain iron in the ferrous state, which is more readily absorbed by the body.

The Durules Technology

The "Durules" designation refers to a specific manufacturing technology used for the tablets. This technology ensures a controlled, gradual release of the active substances over several hours. This sustained-release mechanism is intended to provide a steady supply of iron to the absorption sites in the small intestine while minimizing the concentration of free iron in the stomach, which can help reduce local irritation of the mucous membranes.

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What side effects are possible with Сорбифер Дурулес?

The official safety profile for Сорбифер Дурулес (Ferrous Sulfate/Ascorbate) primarily documents adverse reactions affecting the gastrointestinal system, in addition to serious systemic and localized risks.

Adverse Reaction Scope

Classification Examples of Reactions (System-Organ Class)
Common (up to 1 in 10 people) Nausea, Abdominal pain, Diarrhea, Constipation (Gastrointestinal disorders)
Uncommon (up to 1 in 100 people) Esophageal ulcers, Esophageal stenosis (Gastrointestinal disorders)
Frequency Not Known Skin rash, Vomiting, Oral mucosa ulcers, Anaphylactic reaction, Angioedema (Immune and Skin disorders)

Serious Adverse Reactions and Safety Constraints

Regulatory documentation highlights severe, but rare, safety concerns, particularly those related to the proper ingestion of the prolonged-release tablet and the inherent toxicity of iron:

  • Serious Risks: The product label includes documented risks of severe hypersensitivity reactions, such as Anaphylactic reaction and Angioedema. Localized damage, including Esophageal ulcers and stenosis, is also listed.
  • Age Exclusion: A critical constraint is the explicit exclusion of use in children under 12 years of age. Accidental overdose of iron-containing products is officially documented as a leading cause of fatal poisoning in young children.
  • Ingestion Restriction: Due to the risk of localized irritation and tooth discoloration, the prolonged-release tablet must be swallowed whole without being sucked, chewed, or held in the mouth. The dark discoloration of the stool is an anticipated, non-harmful consequence of oral iron therapy.

The regulatory safety information structures risk by distinguishing between the high frequency of expected GI discomfort and the low frequency of severe systemic or localized complications, necessitating an absolute age exclusion.

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Overdose and Emergency Response

Overdose with iron preparations like Сорбифер Дурулес (Ferrous Sulfate) may present with distinct phases of toxicity. Initially, manifestations include significant gastrointestinal toxicity such as vomiting, severe diarrhea, and epigastric pain. This may progress to systemic effects, including hypotension, tachycardia, and the onset of shock. Neurological involvement is also documented, ranging from central nervous system (CNS) depression and lethargy to convulsions and coma. Metabolic changes, such as acidosis and hyperglycaemia, are a recognized feature of iron toxicity. Symptoms may temporarily resolve before reappearing severely.

Officially documented severe outcomes include recurrent shock and metabolic crisis, leading to major organ damage such as hepatic necrosis, renal failure, and coagulation disorders. Accidental overdose is cited by regulatory bodies as a leading cause of fatal poisoning in children under six years of age.

The specific iron chelating agent, Desferrioxamine, is authorized for use in managing iron overdose, along with procedural interventions like gastric lavage and the monitoring of serum iron levels.

Urgent medical assistance is mandated immediately upon suspected overdose. Call a doctor or a Poison Control Center immediately. Emergency services must be contacted if the affected individual has collapsed, had a seizure, has trouble breathing, or can't be awakened. Continuous observation is required due to the risk of symptoms temporarily resolving before recurring in a severe, potentially life-threatening manner.

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Therapeutic Uses of Сорбифер Дурулес

What Sorbifer Durules Treats: Main Uses and Benefits

The core therapeutic use of Sorbifer Дурулес aligns with its classification as an antianemic preparation, relevant for managing iron-deficiency states. These preparations are used for the therapeutic and prophylactic treatment of iron deficiency and may be part of symptomatic management for associated fatigue. Sorbifer Дурулес is primarily used to help with clinical conditions characterized by low blood iron, including iron deficiency anemia (IDA) and earlier latent iron deficiency. It is commonly applied in clinical settings that involve acute or unstable symptom patterns.

Managing Deficiency Symptoms and Contexts

This medication is relevant for easing the symptom cluster that may arise from systemic imbalance, most notably persistent fatigue, general weakness, and decreased physical stamina. It offers supportive relief that may assist with managing symptoms related to physical discomfort and contributes to easing the overall symptom load. This iron preparation is also commonly applied in clinical scenarios that involve significantly increased iron requirements, such as pregnancy and rapid adolescent growth, or in patients requiring ongoing support, such as those undergoing hemodialysis.


Quick Fact: Support for Iron Deficiency Symptoms

Category Description
Primary Use Used for managing iron deficiency anemia and latent iron deficiency
Symptom Focus Persistent fatigue, weakness, and decreased physical stamina
Contextual Use Pregnancy, adolescence, and prolonged supportive care

Regulatory References

  1. Australian TGA regulatory overview of combined iron supplements
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Eligibility and Restrictions for Use

Who can and cannot use Сорбифер Дурулес?

Eligibility for this iron supplement is strictly determined by official regulatory labeling, focusing on the patient's underlying condition, comorbidities, and age.

Contraindicated Populations

Use is strictly prohibited for patients with diseases of iron overload, including haemochromatosis or haemosiderosis. It is contraindicated in patients with anemias not caused by iron deficiency (e.g., hemolytic anemia), an active peptic ulcer, or severe inflammatory bowel disease (e.g., ulcerative colitis). Patients receiving repeated blood transfusions or concomitant parenteral iron are also excluded from use.

Age-Group and Conditional Rules

Population Category Eligibility Status
Children < 6 years or < 22 kg Not Recommended (Formulation restriction)
Elderly with Swallowing Issues Conditional Use (Aspiration risk must be evaluated; alternative formulations considered)
Pregnant/Lactating Women Recommended (No known contraindications)

Use Limitations

Caution is advised for patients with a history of peptic ulcer, intestinal strictures, or diverticulae. Eligibility requires that a co-existing deficiency of Vitamin B12 or folic acid be ruled out, as mandated by the prescribing information.

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What should I know about interactions with other medicines?

Interactions with other medicines and products

The official interaction profile for Sorbifer Durules, which contains ferrous sulfate, is defined by pharmacokinetic interference that occurs in the gastrointestinal tract. This process primarily involves the formation of insoluble complexes (chelation), which officially reduces the systemic exposure and absorption of both the elemental iron component and specific co-administered agents. This interaction pattern requires mandatory dose separation rather than an absolute contraindication for most substances.

Co-administration with various medicinal products officially reduces their plasma concentrations, including L-Thyroxine, Levodopa, Methyldopa, and the antibiotic classes of Tetracyclines and Quinolones. Conversely, agents that reduce gastric acidity, such as Cimetidine and certain antacids, are officially documented to decrease the absorption of the ferrous component itself.

To mitigate this reduction in exposure, regulatory documents impose strict timing separation rules for concomitant use.

Interacting Substance Category Mandatory Administration Timing Constraint
Tetracycline Antibiotics Must be separated by 2 to 3 hours.
L-Thyroxine / Penicillamine Administer at least 2 hours apart.
Antacids / Cimetidine / Vitamin E Administer at least 1 to 2 hours apart.

Furthermore, the absorption of the iron component is officially documented to be reduced by food intake. Adherence to these time-based constraints is the core procedural requirement for managing the interaction risks associated with Sorbifer Durules.

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Mechanism of Action

The drug's mechanism of action is centered on supplying essential substrate and enhancing its delivery into the systemic circulation. In the gut lumen, the ferrous ion ( Fe^2+) is coupled with ascorbic acid, a reducing agent, which maintains the iron in its highly absorbable state. This Fe^2+ is actively transported across the intestinal barrier by the Divalent Metal Transporter 1 (DMT1). Once absorbed, the iron is exported via the Ferroportin transporter and delivered to the bone marrow by Apotransferrin. Within the bone marrow, the iron acts as the essential, rate-limiting cofactor for the biochemical pathway that produces the heme molecule. Heme is subsequently incorporated into hemoglobin within developing red blood cells. This mechanistic cascade provides the necessary material for the production of functional hemoglobin, thereby increasing the overall systemic oxygen-carrying capacity of the blood. Furthermore, the drug's action is subject to physiological control by the hormone hepcidin, which regulates iron export by causing the destruction of Ferroportin, constraining the rate of systemic iron delivery and utilization.

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Dosage and Administration Information

How to use Сорбифер Дурулес — Official Administration Guidelines

The administration of Сорбифер Дурулес is strictly via the oral route. It is supplied as a specialized prolonged-release film-coated tablet containing 100 mg of elemental iron.

Dosing and Frequency

The standard regimen for iron deficiency in adults typically involves one tablet daily. For conditions requiring a rapid response or for use during the later stages of pregnancy, the official schedule may be augmented to one tablet twice daily, administered as a divided dose. A specific posology is established for the use of this preparation in the pediatric population.

Administration Conditions and Duration

The tablet must be swallowed whole to preserve the integrity of the Durules system; it is a critical procedural condition that the tablet not be crushed, broken, or chewed. To optimize the assimilation of the iron component, the dose is commonly timed to be taken on an empty stomach with a full glass of water.

The course of use is typically structured as a long-term protocol. The duration of treatment extends beyond the initial normalization of blood parameters, continuing for an additional three to six months to ensure the complete replenishment of the body's iron stores.

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Recent Clinical Evidence

Сорбифер Дурулес: Recent Clinical Evidence

Clinical research on Sorbifer Durules—an oral iron supplement containing ferrous sulfate and ascorbic acid (Vitamin C)—focuses primarily on its effectiveness in treating and preventing iron deficiency anemia (IDA) and replenishing iron stores.


Efficacy and Absorption

  • Target Condition: Studies consistently evaluate the drug's role as a first-line treatment for IDA, particularly in high-risk groups such as pregnant women, children, and patients with chronic diseases.
  • Outcome Measures: Primary outcomes in clinical trials typically track changes in hemoglobin (Hb) levels and indicators of iron stores, such as serum ferritin. Research reports that administration may lead to a significant increase in these parameters after a course of treatment.
  • Role of Ascorbic Acid: The addition of ascorbic acid is included in the formulation to potentially enhance the absorption of the ferrous iron (Fe^2+) component from the gastrointestinal tract, which is a known factor in improving iron bioavailability.

Tolerability and Formulation

  • Durules Technology: The drug utilizes a specialized Durules formulation. This slow-release mechanism is designed to reduce the risk of high local iron concentrations in the stomach and upper small intestine. Traditional oral iron salts are often associated with gastrointestinal side effects (e.g., nausea, constipation, stomach discomfort) which can affect patient adherence.
  • Observed Tolerability: Due to its slow-release matrix, the formulation is studied to determine if it is associated with a lower incidence of dose-limiting gastrointestinal adverse events compared to immediate-release iron salts, which is a critical factor for long-term treatment adherence.
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Frequently Asked Questions (FAQ)

Common questions about Сорбифер Дурулес (FAQ)

Q: Can I take Сорбифер Дурулес if I also take calcium supplements?

Regulatory guidance and general ferrous sulfate interaction information indicate that calcium-containing supplements, such as calcium carbonate, may reduce the absorption of iron supplements like Сорбифер Дурулес. To potentially support iron absorption, official sources generally describe separating the administration of iron and calcium-containing supplements by at least two hours.


Q: Does Сорбифер Дурулес interact with coffee or tea?

Official information regarding iron absorption advises that certain substances found in drinks like coffee and tea can interfere with the way the body takes up iron. To potentially support iron absorption, official guidance advises against consuming coffee or tea for at least one hour after taking iron supplements.


Q: Can I take Сорбифер Дурулес with milk?

Like some other foods, milk and dairy products can reduce the amount of iron absorbed by the body. To help maintain effective absorption, official guidance suggests avoiding consuming milk or dairy products for at least an hour after taking the supplement.


Q: What should I do if I miss a day of taking Сорбифер Дурулес?

According to the official product information for iron supplements, if a dose is missed, patients are generally directed to continue with the next scheduled dose at the usual time. Official product information typically advises against taking a double dose to make up for the missed tablet.


Q: Can Сорбифер Дурулес cause metallic taste in my mouth?

While metallic taste is not always listed among the common side effects in all official product documents, it is a recognized phenomenon that can occur with oral iron supplementation.


Q: Do I need a prescription to buy Сорбифер Дурулес?

Official national drug details indicate that Сорбифер Дурулес is categorized as a prescription-only drug (Rx) in some countries. Prescription requirements may vary by region and national regulatory body.


Q: Can taking Сорбифер Дурулес change the color of my urine?

Official clinical guidance states that unabsorbed iron is commonly excreted from the body, which can lead to the urine appearing darker or black. This change in color is a recognized, anticipated effect of oral iron therapy.


Q: Will Сорбифер Дурулес interfere with birth control pills?

Official drug interaction checkers and regulatory-based Q&A for Сорбифер Дурулес generally indicate that it does not have clinically significant interactions that affect the contraceptive effectiveness of hormonal birth control pills.


Q: What is the difference between iron deficiency and iron-deficiency anemia?

Iron deficiency is the condition where the body’s iron stores are depleted or very low. Iron-deficiency anemia (IDA) is the condition where iron deficiency has progressed, resulting in impaired production of hemoglobin and red blood cells.


Q: Does alcohol interact with Сорбифер Дурулес?

Official product information does not clearly specify that alcohol affects the absorption of the iron component itself. Information on co-administration is generally not available on the product label.


Q: Can people with diabetes take Сорбифер Дурулес?

Official drug interaction lists generally do not list diabetes as a contraindication or required caution for Сорбифер Дурулес. Eligibility for its use is determined primarily by the patient's iron status and the presence of other specific contraindications.


Q: Can this medication cause headaches or dizziness?

The most commonly reported adverse reactions for the product involve the gastrointestinal system, such as nausea and constipation. Headaches and dizziness are generally not listed among the more frequent adverse effects in the product's official safety profile.


Q: How is the safety of Сорбифер Дурулес monitored after it is released?

The safety of Сорбифер Дурулес, like all regulated medicines, is continually monitored through pharmacovigilance programs. Regulatory bodies, such as the FDA and EMA, continually collect and analyze reports of adverse events after the product is released to detect and manage any new potential risks.

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How should Сорбифер Дурулес be stored and disposed of?

Storage and Disposal Conditions for Сорбифер Дурулес

The medicine must be stored under specific environmental constraints to maintain the stability of the prolonged-release tablets. The required storage temperature, as established in official labeling, is not to exceed 30°C. The product must also be kept in a dry place and should remain in its original, tightly closed container.

Storage Restriction Official Requirement
Temperature Limit Must not exceed 30°C
Protection Rule Must be kept in a dry place
Child Safety Rule Must be stored out of the sight and reach of children
Disposal Instruction Dispose of unused product according to local regulatory requirements

The child-safety requirement is mandatory due to the significant risk of poisoning associated with accidental ingestion of ferrous salts by young children. Disposal of expired or unused tablets must adhere to local pharmaceutical waste management guidelines, preventing disposal into household waste or wastewater.

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

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