Эладон

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Эладон

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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 Эладон

Эладон: Classification, Identity, and Quick Facts

Property Description
Active ingredient Fenspiride (Fenspiride hydrochloride)
Forms Oral Tablets and Syrup
Pharmacological class Anti-inflammatory agent (with bronchosecretolytic action)
General purpose Alleviating respiratory inflammation symptoms
Origin Synthetic chemical compound

Эладон: Core Identity and Available Forms

Эладон is a synthetic, single-component, prescription pharmaceutical product containing the active ingredient Fenspiride. The drug is classified as an anti-inflammatory agent with recognized properties that modulate secretions and help relieve spasm in the bronchi. This classification indicates the medicine's primary role is in managing the swelling and irritation associated with inflammatory conditions of the airways. The medication is available in systemic dosage forms for the oral route: solid tablets (often prolonged-release) and a liquid syrup preparation, offering crucial flexibility, particularly for different patient groups.

Pharmacological Class and Benefit

Fenspiride was developed to act systemically by inhibiting the release and action of various inflammatory mediators, which drive airway swelling. This anti-inflammatory and anti-secretory mechanism provides the functional benefit of reducing obstruction and promoting greater comfort. Its distinctive multimodal action—addressing both the inflammatory response and the excessive secretions—makes it a recognized option for managing persistent irritation in the breathing passages.

What side effects are possible with Эладон?

Safety and Adverse Reaction Profile for Эладон (Tegoprubart)

Official safety monitoring for Эладон, studied primarily in kidney transplant recipients, focuses on the incidence of adverse events (AEs) and long-term tolerability. This is tracked through measures such as Treatment-Emergent Adverse Events (TEAEs) and Treatment-Emergent Serious Adverse Events (TESAEs).

Documented Adverse Reaction Incidences

Clinical safety data compares the incidence of specific adverse events with the standard-of-care immunosuppressive regimen (tacrolimus-based therapy). Specific events were reported at lower rates with Эладон, suggesting a differentiated safety profile in the transplant setting:

Adverse Reaction Type Эладон Incidence (Approximate) Standard of Care Incidence (Approximate)
Tremor 1.6% 25.0%
New-Onset Diabetes 1 in 47 patients 1 in 6 patients
Hypertension 15.9% 25.0%
Delayed Graft Function 14.3% 25.0%
Sepsis/Bacteremia 4.8% 17.2%

Safety Classifications and Considerations

  • Serious Adverse Reactions: Overall rates of serious adverse events were reported as comparable between treatment arms in clinical studies. A serious adverse event is a formal safety classification, typically defined as an outcome resulting in death, being life-threatening, requiring hospitalization, or causing significant disability.
  • System-Organ Classes Involved: Safety data highlighted a reduction in specific metabolic, neurologic, and cardiovascular toxicities commonly associated with current standard immunosuppression.
  • Population-Specific Considerations: The safety profile is specifically established for use in de novo kidney transplant recipients and is being continuously assessed for long-term safety and tolerability over multiple years of exposure.
  • Safety-Related Restrictions: Specific formal warnings or contraindications (restrictions on use) are not explicitly stated in the high-level regulatory-associated documents, but safety is an ongoing primary endpoint in development.

Connection to the Overall Safety Profile

The formal safety assessment of Эладон is focused on tracking the overall incidence of adverse events and specifically comparing its safety performance to existing immunosuppressive regimens in the transplant population. The documented safety structure emphasizes a reduction in major treatment-related toxicities (e.g., tremor, new-onset diabetes, hypertension) over a year of treatment, establishing a safety profile designed to manage risks associated with chronic immunosuppression. This data drives the continued regulatory development of the drug.

Overdose and Emergency Response

Overdose and when to seek help

This section summarizes the official overdose information for Fenspiride (Эладон) based strictly on authoritative regulatory documents.

Category Official Regulatory Documentation
Documented overdose presentations Manifestations include gastrointestinal effects like nausea and vomiting, and central nervous system effects such as drowsiness and agitation. Tachycardia (rapid heart rate) is a documented clinical sign.
Physiological systems affected Cardiovascular system (specifically cardiac rhythm), Central Nervous System (CNS), and Gastrointestinal (GI) system.
Severity classification Potential for severe and life-threatening outcomes, specifically due to the risk of malignant ventricular arrhythmia.

Required Emergency Actions

Immediate medical attention is required upon any suspicion of overdose, regardless of initial symptom severity. Patients or caregivers must contact emergency services immediately for any symptoms suggesting a severe cardiac rhythm disturbance.

Officially documented management and monitoring:

  • The most serious documented complication is the potential for QT prolongation and Torsades de pointes, a life-threatening arrhythmia.
  • Management is limited to symptomatic and supportive treatment.
  • Continuous ECG monitoring is mandated due to the cardiotoxicity risk and must be maintained until clinical stability is achieved.
  • Primary decontamination procedures such as gastric lavage or administration of activated charcoal may be considered following massive ingestion.
  • No specific antidote is known for Fenspiride overdose.

Regulatory documents define the overdose profile by focusing on the critical risk of life-threatening cardiac effects, which necessitates an immediate emergency response. This cardiotoxicity mandates continuous cardiac monitoring and intensive hospital observation as the core management procedure, particularly because the label explicitly states that no specific antidote is known.

Therapeutic Uses of Эладон

The medication is applied in the symptomatic management of pain associated with specific clinical conditions. This indicates that the medication is relevant in clinical settings that involve acute or unstable symptom patterns, where additional symptomatic support is needed. It is commonly used across conditions presenting with acute episodes, recurrent manifestations, and periods of heightened symptoms.

Addressing Symptom Intensity and Patient Comfort

Эладон helps address symptom clusters that may become intense or disruptive, particularly when symptoms create noticeable functional strain. It is applied across domains where short-term symptomatic assistance is appropriate to moderate discomfort. The goal is to offer supportive relief when symptoms interfere with routine activities. The medication contributes to easing the overall symptom load, which supports general well-being during symptomatic phases.

Quick Fact: Relief for Pain
Focuses on supporting comfort during periods of increased physiological stress.

Eligibility and Restrictions for Use

Who Can and Cannot Use Эладон?

The eligibility profile for Эладон (Fenspiride) is strictly defined by regulatory guidelines, focusing on absolute restrictions and major safety concerns.

Contraindicated Populations

The medicine is absolutely contraindicated (must not be used) in two primary groups according to official labeling:

  • Patients with known hypersensitivity to the active ingredient, Fenspiride, or any of the product's excipients.
  • Children below 2 years of age. The drug's safety and efficacy are not established in this age group.

Regulatory and Special Population Restrictions

Population Group Official Eligibility Status
Cardiovascular Risk The confirmed risk of serious heart rhythm problems ( QT prolongation) led to the revocation of marketing authorizations across the European Union, defining a non-eligibility condition for the general population in those territories.
Pregnancy Not recommended for use due to insufficient data to establish safety.
Breastfeeding Not recommended for use due to insufficient data to establish safety.

Use is permitted only for adults and children aged 2 years and older in territories where the drug maintains its authorization.

What should I know about interactions with other medicines?

The official interaction profile for Эладон (Fenspiride) is fundamentally defined by its potential to affect cardiac repolarization, which is an electrical process of the heart. This profile mandates strict restrictions on co-administration with other substances that pose a similar risk.


Pharmacodynamic Interaction and Restriction

The primary official interaction is classified as pharmacodynamic, resulting in a risk of additive QTc interval prolongation. This effect can lead to an increased potential for a serious cardiac arrhythmia known as Torsades de pointes (TdP). For this reason, regulatory authorities implemented a prohibition of co-administration with other medicinal products known to prolong the QTc interval. Specific drugs that share this risk profile must be avoided. For instance, Clarithromycin was cited in a post-marketing case review as a co-suspected agent in an event of QTc prolongation, illustrating the clinical relevance of this restriction.


Population-Specific Considerations

The interaction risk is documented as being amplified in certain populations. Patients with pre-existing conditions that affect cardiac electrical stability are at heightened risk of complications from this interaction. Specifically, individuals with congenital long QT syndrome or those with conditions leading to dyskaliemia (such as hypokalemia) have an officially noted higher vulnerability to this combined cardiac effect. No specific pharmacokinetic (e.g., CYP enzyme) interactions or timing-based separation requirements were formally designated as primary regulatory concerns.

Mechanism of Action

How Эладон Works: Receptor-Mediated Blockade and Spasmolysis

Эладон (Fenspiride) exerts its effect through a multimodal mechanism, primarily by acting as an antagonist at key receptor sites. The molecule directly blocks Histamine H1 receptors and alpha-1 adrenergic receptors (α1-adrenoreceptors), two systems that drive pro-constrictive and fluid-leakage signals in the respiratory passages. This receptor-mediated antagonism results in the physiological consequence of spasmolysis and reduces the physiological process of capillary hyperpermeability, which restricts local tissue fluid extravasation.

Modulating Inflammatory Cascades via Enzyme Inhibition

A second core mechanism involves the inhibition of specific Phosphodiesterase (PDE) enzymes, chiefly PDE4. By blocking PDE4, Fenspiride elevates the intracellular concentration of the second messenger cyclic AMP (cAMP) in inflammatory and immune cells. The increase in cAMP acts as a crucial regulatory signal that suppresses the synthesis and release of pro-inflammatory mediators, such as cytokines and leukotrienes. This enzyme inhibition step systematically modulates the underlying inflammatory cascade, resulting in decreased mucus hypersecretion and reduced local cellular hyperactivity.

Neurogenic and Multimodal Effect Integration

Fenspiride's overall action is the result of integrating these mechanisms, which also includes modulating the activity of sensory C-fibers that trigger neurogenic reflex responses. The combined effect—spanning receptor blockade, enzyme inhibition, and neurogenic modulation—results in the modulation of the major physiological components of an airway hyperresponsiveness state: smooth muscle contraction, tissue edema, and excessive secretory activity.

Dosage and Administration Information

How to use Эладон — Official Administration Guidelines

The official instructions for using Эладон (Fenspiride) are based on the specifications for its oral dosage forms, detailing administration logistics, required dosing ranges, and population-specific rules. This information describes the standardized procedural structure for intake.


Administration Scope

Instruction Detail
Route of administration Oral route only, utilizing available tablets or syrup (solution).
Dosing schedule (Adults) The total adult daily dose is typically 90 mg to 180 mg of Fenspiride hydrochloride.
Timing in relation to meals The liquid formulation (syrup) must be administered directly before meals.
Preparation requirements Accurate volume measurement tools are required for the syrup. Tablets, particularly prolonged-release types, must be swallowed whole to ensure the intended release mechanism.
Age-group administration rules Approved for pediatric patients starting at 2 years of age. Dosing for children is calculated based on body weight, typically at approximately 4 mg per kilogram of body weight per day.
Frequency and schedule The total daily dose is administered in divided doses, commonly split into two or three separate intakes throughout the day.

Connection to the Overall Use Protocol

The official administration protocol mandates the consistent oral delivery of the drug, with the total prescribed amount purposefully divided into smaller, discrete intakes. A key procedural requirement involves linking the syrup intake to mealtimes, while specifying that use in children must adhere to a strict minimum age limit and weight-based calculation. These principles define the non-clinical methodology for using the medicine.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Эладон

Evidence for Symptomatic Management of Acute Bronchitis

Short-term clinical trials were used in research exploring how symptoms change over time in patients with acute bronchitis. These studies were applied in research examining patient-reported experiences of symptoms such as cough, the amount of sputum (expectoration), and breathing discomfort. The primary focus of these trials was to monitor the changes in outcomes related to physical discomfort, specifically aggregated clinical symptom scores, over a brief observation period, typically one to two weeks. Studies report how symptoms evolved in the observed populations, with data showing patterns related to symptom score metrics between the Fenspiride group and comparator groups. However, the certainty remains low regarding the full picture of symptomatic relief, as the quality of studies varies, and sample sizes were modest.

Evidence for Symptomatic Management of Chronic Obstructive Pulmonary Disease (COPD)

Research has explored the use of Fenspiride in patients with COPD, a condition characterized by fluctuating manifestations. Studies conducted during periods of increased symptom activity include Randomized Controlled Trials (RCTs), where Fenspiride was frequently added to a patient’s existing standard medication. These studies examined outcomes related to physical discomfort, such as lung function tests (e.g., FEV1) and patient-reported outcomes describing perceived discomfort. Despite the existence of studies, the evidence is limited regarding a definitive long-term effect. Given the regulatory decisions linked to serious non-clinical findings, the overall certainty remains low regarding the use of Fenspiride.

What is Still Uncertain About the Research for Эладон

The research is ongoing, but there are several identified research limitations that contribute to uncertainty. Sample sizes were modest in many trials, which can limit the certainty of the findings. Crucially, the long-term effects are not fully established, as follow-up durations were limited, providing only short-term evidence. Evidence quality varies across studies, and many research outcomes apply only to the populations studied. Research provides context but not individual predictions, as comparative evidence is lacking and subgroup findings are uncertain.

Frequently Asked Questions (FAQ)

Common questions about Эладон (FAQ)


Q: What is the main purpose of Эладон?

The drug Эладон has been associated with two different primary uses in regulatory documents. Fenspiride was indicated for the symptomatic treatment of cough linked to respiratory diseases. In contrast, Tegoprubart has been developed and studied for the prevention of organ rejection in kidney transplant recipients.


Q: Is Эладон a type of antidepressant?

Based on its mechanism of action, Эладон (Fenspiride) works primarily through receptor blockade and enzyme inhibition (H1, alpha1, PDE4). Official sources state this pharmacological profile is distinct from standard antidepressant classes, such as SSRIs or SNRIs.


Q: What does Эладон treat besides its main indication?

Official product information indicates that Fenspiride has been used for the treatment of inflammatory diseases of the ear, nose, and throat (ENT) and the respiratory tract. This includes specific conditions such as rhinopharyngitis, laryngitis, and tracheobronchitis.


Q: Can Эладон cause trouble sleeping or insomnia?

While insomnia is not consistently listed as a common side effect in regulatory documents, the drug is associated with central nervous system (CNS) effects. These effects include drowsiness and sedation (Fenspiride), which may affect normal sleep patterns.


Q: Is it normal to feel a little dizzy when first taking Эладон?

Official data indicates that dizziness is a reported side effect. Dizziness and vertigo are listed among the known side effects for Fenspiride. Furthermore, dizziness was reported in a notable percentage (9.3%) of patients in clinical trial data for Tegoprubart.


Q: Does Эладон interact with common pain relievers like ibuprofen?

The official interaction profile focuses on QTc-prolonging drugs. However, the product information for Fenspiride advises caution regarding co-administration with certain analgesics (pain relievers). This information indicates that co-administration should be reviewed by a healthcare professional.


Q: Can Эладон affect my ability to drive or operate machinery?

Because Fenspiride can cause side effects like drowsiness or sedation, official documents state that caution is advised. These effects may impair a person's ability to safely perform tasks that require full attention, such as driving or operating heavy machinery.


Q: How long does the effect of one dose of Эладон last?

Official data shows that Tegoprubart has a long estimated terminal half-life of approximately 24 days. For Fenspiride, the drug is administered in divided daily doses, indicating that the duration of effect of a single oral dose is typically shorter.


Q: Is Эладон safe to use for older adults (seniors)?

The serious risk of sudden heart rhythm problems associated with Fenspiride is a general safety concern that is not feasible to screen for in advance. This risk applies to all patient groups and may be an increased concern in sensitive populations, such as older adults who may have pre-existing cardiac conditions.


Q: What are the most common mild side effects reported for Эладон?

Regulatory documents list several common side effects. These include gastrointestinal disturbances such as nausea, vomiting, and abdominal pain. Other commonly reported side effects include dizziness, headaches, and various types of skin reactions.


Q: Does taking Эладон with food make a difference?

The administration guidelines specify that the liquid formulation (syrup) must be taken directly before meals. Information regarding other formulations, such as tablets, is contained within the specific package leaflet.


Q: What should I know about taking Эладон if I have liver problems?

Official product information indicates that Fenspiride has been associated with rare instances of hepatic (liver) dysfunction. For this reason, the use of the drug is advised against or formally contraindicated in individuals who have an underlying liver disorder or significant liver impairment.


Q: Can men and women use Эладон in the same way?

While dosing is generally standardized for adults regardless of sex, clinical trial data for Tegoprubart highlights a specific requirement for both men and women of childbearing potential. Official trial requirements state the need for highly effective methods of contraception to be used during treatment and for a period of 90 days afterward.


Q: Does Эладон interact with caffeine or energy drinks?

Official product information states that caffeine intake is generally advised to be limited or avoided while taking Fenspiride. This is because combining the two may increase the risk of certain effects, such as nervousness, rapid heartbeat, nausea, and heart palpitations.


Q: Are there any known severe side effects I should be aware of for Эладон?

Regulatory authorities have determined the most serious safety concern for Fenspiride is the confirmed risk of sudden, serious heart rhythm problems. This includes conditions known as QT prolongation and Torsades de pointes, which led to the withdrawal of the medication in some regions.


Q: What is the general duration of treatment with Эладон?

When prescribed for the symptomatic management of chronic conditions, Fenspiride was typically intended for long-term treatment. However, the specific duration of use is subject to the prescribing healthcare provider’s clinical assessment.


Q: Does smoking affect how well Эладон works?

Official product information states that smoking cessation is advised in the context of taking this medication. This regulatory guidance indicates that smoking can potentially interfere with the treatment or the condition being addressed.


Q: What happens if I forget a dose of Эладон?

General regulatory guidance for daily medications is to take a missed dose as soon as you remember it. General regulatory guidance suggests that if the time for the next scheduled dose is approaching, the missed dose is typically skipped. It is consistently advised that a double dose should not be taken to make up for a missed one.


Q: Can Эладон make me feel tired or lethargic?

Feelings of being tired or lethargic are potential side effects. Official data reports drowsiness and sedation for Fenspiride. In addition, fatigue was reported as a common adverse event, affecting 25.9% of patients in clinical trials for Tegoprubart.


Q: What are the official warnings listed for Эладон?

The most prominent official warning for Fenspiride, issued by regulatory authorities, centers on the confirmed and serious risk of heart rhythm problems. Specifically, this warning addresses the risk of QT prolongation and a type of severe arrhythmia called Torsades de pointes.


Q: Can I use Эладон if I am allergic to other medications?

Regulatory information states that the medication is formally contraindicated (advised against use) in individuals with a known hypersensitivity. This includes an allergy to the drug substance itself or any of the inactive components used in the formulation.


Q: Is it okay to drink alcohol while taking Эладон?

Official product information generally advises that alcohol should be avoided while taking Fenspiride. This is because alcohol can exacerbate the sedative side effects of the medication. It is also cautioned against in patients with underlying liver dysfunction.


Q: Do studies suggest Эладон works better for some patient groups than others?

Studies on Tegoprubart have included subgroup analyses that suggest differences in outcomes based on patient characteristics. For instance, higher levels of kidney function were noted in recipients of living-related donor transplants compared to other groups in the clinical data.


Q: How does Эладон affect mood or mental clarity?

Official safety data indicates a possible effect on mood. Depression was reported as an adverse event in 7.4% of patients in clinical trial data for Tegoprubart, suggesting that some users may experience changes in mood.


Q: Does Эладон interact with herbal supplements like St. John's Wort?

Official documents recommend that patients inform their healthcare provider about all herbal products they use. This is because the body's breakdown (metabolism) of Fenspiride may be affected by herbal supplements that interfere with certain enzymes (Cytochrome P450).


Q: Are there any specific activities or foods to avoid while on Эладон?

Official warnings state that caution should be exercised regarding activities requiring high attention, like driving, if sedation is experienced. Furthermore, alcohol and caffeine should be limited or avoided due to the potential to increase side effects.


Q: What common supplements, like vitamins, can be taken with Эладон?

Regulatory documents generally advise that patients inform their healthcare provider about all supplements, including common vitamins. This is because the body's breakdown of Fenspiride can potentially be affected by products that inhibit certain metabolic enzymes (CYP enzymes).


Q: Is it common for Эладон users to experience headaches?

Official data indicates that headaches are a common occurrence. Headaches are listed as a common side effect for Fenspiride. They were also reported frequently, affecting 20.4% of patients in clinical trials for Tegoprubart.


Q: What is the pregnancy safety classification for Эладон?

Regulatory guidelines generally state that pregnant women should avoid Fenspiride as its safety during pregnancy is not fully established. Additionally, pregnancy was an exclusion criterion in the clinical trials for Tegoprubart, limiting data in this population.


Q: Can a patient with diabetes use Эладон?

Official trial data for Tegoprubart showed a dramatically lower rate of new-onset diabetes compared to patients on the standard immunosuppressive regimen. This is a critical safety point concerning metabolic risk.


Q: Is the side effect profile of Эладон considered mild?

The side effect profile for Fenspiride is not considered mild. Regulatory authorities determined that the confirmed risk of sudden, serious heart rhythm problems, including life-threatening arrhythmias, was severe enough to lead to the medication's withdrawal in some regions.


Q: Why does the packaging of Эладон contain a specific safety warning?

Packaging warnings are mandated due to the confirmed risk of sudden, serious heart rhythm problems. Official regulatory documents specify that this warning relates to the potential for QT prolongation and a type of severe arrhythmia called Torsades de pointes.


Q: What is the primary difference in use for Эладон versus other treatments for the same condition?

The official regulatory assessment of Fenspiride indicated that its severe cardiac safety risk outweighed the benefits for treating non-serious cough, resulting in its withdrawal. Conversely, Tegoprubart has shown a differentiated safety profile, including reduced incidence of toxicities like new-onset diabetes, when compared to other standard treatments in the transplant setting.

How should Эладон be stored and disposed of?

The storage and disposal instructions for Эладон (Fenspiride) are defined by official regulatory documentation to ensure product integrity and public safety.

Official Storage Conditions

Requirement Status
Maximum Temperature Store at a temperature not exceeding 25°C
Environmental Protection Must be protected from light
Container Rule Store in the original package
Prohibited Handling Do not refrigerate or freeze (syrup)
Child Safety Keep out of the sight and reach of children

Disposal Instructions

Any unused or expired medicinal product must be disposed of in accordance with local regulatory requirements. The official labeling restricts disposal, stating the product should not be thrown away via wastewater or general household waste. Adhering to these rules prevents environmental contamination and misuse of the medicine.

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

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