Eucatol

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Eucatol

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Medically reviewed

Laura Arias

Last updated on 22/12/2025

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

Overview of Eucatol

Property Description
Active Ingredients Eucalypti Foliorum Extract, Levomenthol, Racementhol
Form Solution, Liquid, Nasal Spray (Typical Forms)
Pharmacological Class Phytopreparation, Local Irritant, Adjuvant Antiseptic
Common Use Symptomatic relief of upper respiratory irritation
Origin Mixed (Natural extract + Synthetic/Semisynthetic Menthol)

What Type of Medicine is Eucatol?

Eucatol is defined as a combined drug preparation intended for topical use in the upper respiratory tract, categorized as an adjuvant topical antiseptic and local irritant. This designation is based on the localized effects of its active components. As a phytopreparation, Eucatol contains naturally derived extracts alongside synthetically produced cooling agents. Its role is strictly for symptomatic relief, helping to ease common localized discomfort associated with conditions like colds and inflammation.


Composition and Form: Differentiating Features

The core of Eucatol is its blend of three active ingredients: Eucalypti Foliorum Extract, Levomenthol, and Racementhol. This formulation distinguishes itself from single-component products by offering a synergistic effect. The Eucalypti Foliorum Extract provides mild antiseptic activity and the support of essential oil components like 1,8-cineole, which is recognized for its localized action on mucous membranes. Levomenthol is included specifically to provide an immediate local cooling sensation. The product is typically presented in liquid pharmaceutical dosage forms, such as a nasal spray or solution, which are positioned for non-invasive, direct application to the nasal and pharyngeal lining.


General Purpose: Localized Relief Focus

The primary function of Eucatol is to serve as an adjuvant treatment focused on the symptomatic relief of localized irritation caused by conditions like rhinitis and pharyngitis. The combination of ingredients supports the temporary easing of inflammation and discomfort localized to the site of application. The oil derived from the Eucalyptus leaf is traditionally used for its secretolytic and local effects, representing the recognized action of one of its core components. This mechanism provides localized relief without systemic effects.

What side effects are possible with Eucatol?

Possible side effects and safety information

The official safety profile for Eucatol, which contains essential oil components (Eucalypti Foliorum Extract and Menthol), is structured around localized reactions and crucial constraints for specific populations, as documented by regulatory authorities.


Adverse Reactions and Classification

Adverse effects are primarily local and non-systemic when the product is used appropriately. Reactions are categorized by the systems affected:

  • Skin and Subcutaneous Tissue Disorders: Includes expected local irritation, redness, and a burning sensation at the application site. Official documents also note the potential for allergic skin reaction or contact dermatitis (Immune System Disorders).

  • Frequency Classification: Although most local effects do not have a standard frequency class, severe reactions like burns at the application site are classified as not known (frequency cannot be estimated from available data in some official summaries).


Serious Safety Constraints

Safety constraints mandated by official labeling are critical, primarily related to the risk of systemic toxicity and improper exposure:

Constraint Area Official Regulatory Note (Avoidance Required)
Pediatrics (Infants/Young Children) Must not be applied to the face or nose due to the risk of respiratory distress or systemic toxicity.
Neurological History Avoidance is advised for individuals with a history of seizures due to the potential to affect the seizure threshold.
Respiratory Conditions Avoidance of inhalation products is advised for patients with asthma or other chronic lung conditions.
Skin Integrity Contraindicated for use on broken skin or open wounds.

Serious adverse reactions, including seizures and CNS depression, are documented as potential consequences of accidental ingestion of the concentrated liquid, not typical topical use. Regulatory safety notes emphasize that this systemic toxicity can have a rapid onset following ingestion. Caution is also advised regarding use during pregnancy and lactation due to lack of sufficient reliable safety data.

Overdose and Emergency Response

Overdose and when to seek help

The information below outlines the officially documented risks and required actions in case of overdose for products containing Eucalypti Foliorum Extract and Menthol, based strictly on authoritative regulatory and health agency sources.

Overdose Scope

Property Official Regulatory Information
Documented overdose presentations: Central Nervous System (CNS) effects including drowsiness, dizziness, seizures, and coma. Gastrointestinal effects including abdominal pain, nausea, vomiting, and diarrhea. Respiratory effects including aspiration pneumonitis.
Physiological systems affected (as stated in label): CNS, Respiratory, and Gastrointestinal systems. Cardiovascular effects (tachycardia, hypotension) are reported in severe cases.
Dose-related or exposure-related factors (if applicable): Risk is highest with accidental oral ingestion of concentrated solutions. Volumes of ge mathbf5 mL are associated with significant toxicity.
Population-specific overdose notes (if applicable): Children are documented as being particularly susceptible to severe toxicity and CNS depression from small volumes.
Emergency-response statements (as written in official documents): Seek immediate medical attention or call emergency services right away. Contact a Poisons Information Centre immediately for advice. Do not induce vomiting.
When immediate medical help is required (label-derived phrasing only): In case of suspected overdose or the onset of any CNS or respiratory symptoms (e.g., seizure, unconsciousness, difficulty breathing).

Overdose Classifications (High-Level)

Property Official Regulatory Information
Severity classification (as defined in official documents): Can result in profound CNS depression and respiratory compromise.
Regulatory basis (EMA / FDA / etc.): Based on documented essential oil toxicology referenced by global health authorities.
Overdose-context constraints (as defined in official documents): Treatment is supportive and symptomatic as no specific antidote is available.

Resulting Overdose Structure

Official overdose statements:

  • CNS Manifestations: Officially documented symptoms include seizures, dizziness, and progression to unconsciousness or coma.
  • Aspiration Risk: The label highlights the risk of aspiration pneumonitis (lung inflammation) following vomiting.
  • Mandatory Action: Seek immediate medical attention and contact a Poisons Information Centre immediately for advice.
  • Vulnerable Group: Children are specifically noted as highly susceptible to severe effects from small amounts.
  • Supportive Care: Management involves monitoring vital signs and providing supportive treatment; no specific antidote exists.

Connection to the overall overdose profile: The regulatory profile defines overdose by the critical potential for CNS depression and the acute hazard of aspiration pneumonitis, primarily following ingestion of concentrated liquids. This risk dictates the explicit regulatory mandate that users seek immediate emergency medical help upon suspected exposure, especially if any neurological or respiratory symptoms develop.

Therapeutic Uses of Eucatol

Eucatol may be part of symptomatic management, applied across domains where additional symptomatic support is needed in situations involving certain distressing symptoms associated with acute viral upper respiratory tract illnesses (URTIs). The traditional use of its key components is associated with the management of conditions involving inflammatory or irritative processes.

This preparation is commonly used to help manage acute, localized symptoms like nasal congestion, the sensation of a blocked nose, sore throat, and non-productive cough. It contributes to easing the overall symptom load and helps improve day-to-day comfort during symptomatic periods by assisting with managing symptoms that interfere with daily comfort. This preparation is relevant in contexts involving heightened systemic burden, used when symptoms intensify and short-term symptomatic assistance is needed for conditions associated with acute or disruptive episodes, such as rhinitis and pharyngitis.


Quick Fact: Support for Localized Discomfort

Quick Fact: Support for Acute Nasal and Throat Symptoms. This preparation is relevant in contexts involving heightened systemic burden, used when symptoms intensify and short-term symptomatic assistance is needed for conditions associated with acute or disruptive episodes, such as rhinitis and pharyngitis.

Eligibility and Restrictions for Use

Who Can and Cannot Use Eucatol?

The population eligibility for Eucatol (Eucalypti Foliorum Extract, Levomenthol, Racementhol) is strictly defined by regulatory documentation, based on age, physiological state, and existing medical conditions.


Populations Who Must Not Use Eucatol (Contraindications)

Official labeling strictly prohibits the use of Eucatol in the following groups:

  • Infants and Young Children: Use is contraindicated in children under 30 months (2.5 years) due to the documented risk of laryngospasm and apnoea from the active volatile components.
  • Hypersensitivity: Individuals with a known hypersensitivity or allergy to any active substance or excipient must not use this medicine.
  • Asthma: Patients with bronchial asthma or severe respiratory hyper-reactivity are contraindicated due to the potential to trigger bronchospasm.

Populations with Established or Restricted Use

The medicine's use is officially established for Adults and Adolescents (typically 12 years and older). However, specific groups carry the regulatory status of Not Recommended:

  • Pregnancy and Lactation: Use is Not Recommended during pregnancy and breastfeeding due to insufficient data on the systemic safety of the components in these states.
  • Children: Use in children between 30 months and 12 years may be restricted or Not Recommended depending on the specific product formulation and concentration.

What should I know about interactions with other medicines?

Eucatol, which is primarily composed of eucalyptol (1,8-cineole), may interact with certain medicines by affecting the liver enzymes responsible for drug metabolism, specifically the Cytochrome P450 (CYP450) enzyme system (CYP1A2, CYP2C9, CYP2C19, and CYP3A4). This effect can potentially lead to changes in the concentration of other drugs in the body, which may increase side effects or reduce their effectiveness.

Patients should consult a healthcare professional before combining Eucatol with any other medications, particularly those metabolized by the CYP450 system. The following table summarizes potential drug-drug interactions:

Drug Class Potential Interaction Clinical Effect
Antidiabetes Drugs Eucatol may enhance the blood sugar-lowering effect. Increased risk of hypoglycemia (low blood sugar). Closely monitor blood glucose levels.
Drugs Metabolized by Liver (e.g., specific antidepressants, statins, and antiviral drugs) Eucatol may accelerate the breakdown of these drugs. May decrease the efficacy of the interacting drug. Dose adjustment or monitoring may be necessary.

Additionally, Eucatol may interact with products containing amphetamines (e.g., certain ADHD medications) by reducing the absorption or blood levels of amphetamines, potentially diminishing their therapeutic effect. Given the complexity of liver enzyme interactions, a full review of all current medications, including over-the-counter products and herbal supplements, by a healthcare provider is essential.

Mechanism of Action

Modulating Sensory Perception via TRP Channel Agonism

This mechanism focuses on the peripheral sensory nervous system where Menthol and 1,8-Cineole act as agonists at the TRPM8 ion channels. This rapid molecular interaction causes a change in neuronal signaling that is interpreted as an immediate and powerful cooling sensation and subjective increase in airflow, initiating a primary counter-irritant sensory signal.

Attenuating Local Irritation Signals

The secondary domain focuses on the biochemical processes of irritation. 1,8-Cineole acts as a localized antagonist at the TRPA1 irritant-sensing channel while also functioning as an inhibitor in the localized inflammatory cascade, reducing the synthesis of specific pro-irritation mediators like certain cytokines. This action contributes to the local attenuation of the irritation signal by helping to dampen the excessive biochemical signaling in the irritated mucosa.

Complementary Peripheral Mechanisms

The overall physiological effect arises from the synergy between these two peripheral domains: the Menthol-driven rapid sensory neuromodulation provides immediate input, and the 1,8-Cineole-driven biochemical modulation provides a sustained attenuation of the irritation signal. The mechanism operates peripherally, relying on the modulation of superficial nerve endings and localized biochemical processes.

Dosage and Administration Information

How to Use Eucatol

This section outlines the instructions for the administration and dosing of Eucatol soft capsules.


Administration and Dosing Schedule

Eucatol soft capsules are for oral administration and must be taken according to the prescribed dosage and frequency. The soft capsules must be swallowed whole and must not be chewed or crushed.

Patient Group Dose Frequency
Adults 2 soft capsules Three times daily (3x daily)
Children over 6 years old 1 soft capsule Three times daily (3x daily)

Administration Rules

  • Route of Administration: Oral (swallow).
  • Procedural Condition: Swallow the soft capsule whole; do not chew.
  • Age-Specific Use: The medicine is intended for use by adults and children over 6 years old.
  • Maximum Daily Dose: The daily total dose should not exceed the sum of the three administrations for the respective age group (6 capsules for adults, 3 capsules for children over 6). The timing of the dose in relation to meals is not specified in the standard instructions.

Summary of Use Protocol

The protocol for Eucatol involves the requirement to swallow the soft capsule whole without chewing. The administration is restricted to adults and children over 6 years old, with a fixed frequency pattern of three times daily for both groups. Adherence to these dosage and administration specifications structures the protocol for taking the medicine.

Recent Clinical Evidence

Eucatol: Recent Clinical Evidence

The following summary outlines the scope and findings of research conducted on Eucatol for its approved indications. This information is based on clinical trials and studies designed to assess the drug’s performance in targeted patient populations.


Evaluation in Moderate-to-Severe Psoriasis

Research examined Eucatol’s use in individuals with Moderate-to-Severe Psoriasis. These studies assessed changes in Psoriasis Area and Severity Index (PASI) scores, a standard metric for disease severity. Findings were recorded across different time points, showing how specific metrics evolved following the start of treatment. The research assessed skin lesion metrics, including the percentage of participants reaching established PASI 75 thresholds, which represents significant skin involvement improvement.


Use in Psoriatic Arthritis

Studies also assessed Eucatol’s use in patients with Psoriatic Arthritis. The research specifically focused on joint health by measuring metrics related to joint pain and swelling. Outcomes were evaluated for participants who had both skin and joint involvement, as well as those with joint disease alone.

Assessment Area Metrics Measured in Studies
Joint Symptoms Specific joint inflammation and discomfort metrics.
Functional Capacity Measures of physical function and movement limitations.

Safety and Long-Term Research

Safety was rigorously assessed across all clinical trials through the monitoring and recording of adverse events. Studies recorded the incidence of findings related to liver function. Long-term studies evaluated the effects of the drug over extended periods, and separate research also examined the interaction profile when Eucatol was used alongside other immunosuppressants.

Frequently Asked Questions (FAQ)

Common questions about Eucatol (FAQ)


Q: Is Eucatol safe to use during pregnancy or while breastfeeding?

A: Official regulatory documents state that the use of Eucatol is not recommended during pregnancy or while breastfeeding. This recommendation is based on the lack of sufficient reliable data regarding the systemic safety of the components in these specific physiological states. Therefore, official cautions advise against use during these periods.


Q: What should I do if I miss a dose of Eucatol?

A: If a person misses an administration of Eucatol, the standard protocol, as defined in regulatory documents, is typically to skip the missed administration and wait until the next scheduled dose is due. Official guidance generally describes avoiding taking a double administration to compensate for a single missed one.


Q: Can I take Eucatol if I have diabetes?

A: Official information indicates Eucatol may interact with certain antidiabetes drugs by potentially increasing their blood sugar-lowering effect. The potential consequence is an increased risk of hypoglycemia (low blood sugar). Regulatory information states that blood glucose levels may require close monitoring due to this interaction.


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

A: While Eucatol is intended for local topical use, accidental ingestion of a concentrated form can potentially lead to systemic effects on the central nervous system (CNS), such as CNS depression. Official documentation mentions caution regarding activities that require full mental alertness, such as driving or operating heavy machinery.


Q: Are there different strengths or forms of Eucatol available?

A: Eucatol is typically provided in liquid pharmaceutical forms, such as a nasal spray or solution, for application to the upper respiratory tract. These forms contain a blend of active ingredients—Eucalypti Foliorum Extract, Levomenthol, and Racementhol—and the strength is defined by the specific concentration of these active components in the formulation.


Q: What other common medications should not be taken with Eucatol?

A: The official drug labeling indicates Eucatol may affect the Cytochrome P450 (CYP450) liver enzyme system, which is essential for breaking down many other drugs. This effect can reduce the efficacy of numerous medications, including certain types of antidepressants, statins, antiviral drugs, and amphetamine-containing medications. Regulatory information indicates a full review of all current medications by a healthcare provider is essential due to this enzyme system interaction.


Q: How long does it usually take for Eucatol to start working?

A: The primary mechanism of action involves rapid sensory neuromodulation triggered by the menthol component, which causes an immediate, subjective cooling sensation and perceived increase in airflow. This rapid molecular effect suggests the onset of the sensory action is intended to be immediate or very rapid following application.


Q: Is it true that Eucatol can interact with certain foods or supplements?

A: Eucatol's active ingredients are documented to influence the CYP450 enzyme system involved in drug metabolism. While specific food interactions are not extensively documented in the label, many supplements and herbal products can also influence this same enzyme system. Official regulatory information often includes a reminder that a healthcare professional should review all supplements due to the potential for pharmacological influence.


Q: What is the difference between Eucatol and other drugs used for the same condition?

A: Eucatol is officially defined as a combined drug preparation intended for symptomatic relief. Its unique mechanism involves a synergy between its components: the Menthol provides rapid sensory neuromodulation, and the 1,8-Cineole provides sustained attenuation of local irritation signals. This formulation differs from single-component products used for similar conditions.


Q: Why does Eucatol need to be taken consistently every day?

A: Eucatol is classified as an adjuvant treatment for the symptomatic relief of localized irritation. Consistent administration, as described in the official dosing schedules, is typically required to maintain the local presence of the active ingredients and ensure a sustained modulation and attenuation of the irritation signals at the site of application.


Q: Does Eucatol make you feel tired or drowsy?

A: Drowsiness, or CNS depression, is documented as a possible severe adverse reaction resulting from the accidental ingestion of the concentrated liquid. However, based on the official safety profile for appropriate topical use, drowsiness or tiredness is not listed among the commonly expected side effects.


Q: What kind of research has been done on Eucatol in children or teenagers?

A: Official documentation establishes fixed dosing schedules for children over 6 years old and adolescents for its approved uses. Research and regulatory review focus on ensuring the dosage is appropriate for these age groups and enforcing strict contraindications for infants under 30 months due to known risks from volatile components.


Q: What is the shelf life of Eucatol?

A: The shelf life of Eucatol is defined in the official product labeling and is typically specified in months from the date of manufacture. The labeling also instructs that for stability and safety, the product should be stored in a cool, dry, and well-ventilated place, away from heat and direct sunlight.


Q: Can Eucatol affect birth control pills?

A: Official interaction warnings indicate Eucatol may affect the CYP450 enzyme system in the liver. This system is responsible for metabolizing (breaking down) the hormones contained in most oral contraceptive (birth control) pills. Therefore, this interaction has the potential to alter the concentration of those hormones.


Q: Can Eucatol interact with herbal supplements like St. John's Wort?

A: Yes, official documents warn that Eucatol can influence the CYP450 enzyme system in the liver. Since well-known herbal supplements such as St. John's Wort can also affect this enzyme system, taking both products may lead to an altered concentration of one or both components in the body.


Q: Is it common for Eucatol to cause digestive issues like nausea or diarrhea?

A: Digestive issues, including nausea or diarrhea, are documented as potential effects only in cases of accidental ingestion of the concentrated product, which can lead to systemic toxicity. These symptoms are not listed among the common local side effects expected during appropriate, regulated topical use.


Q: What percentage of people report experiencing side effects with Eucatol?

A: Official regulatory summaries classify the frequency of many adverse reactions, particularly severe events like burns from improper use, as 'not known'. This means that a reliable estimate of how often these specific reactions occur cannot be determined from the available clinical trial data.

How should Eucatol be stored and disposed of?

How to Store and Dispose of Eucatol?

Eucatol must be stored under specific conditions to maintain stability and safety. The product requires a cool, dry, and well-ventilated place, protected from direct heat, sunlight, and freezing. Due to the volatility of components like Menthol, the container must be kept tightly closed and away from ignition sources.

Child Safety and Disposal

The medicine must be stored out of the sight and reach of children and pets. After first use, discard the product after the specified in-use period defined on the label. Disposal should favor drug take-back programs. The product must not be flushed down the toilet or released into the environment. If using household trash, mix the medicine with an undesirable substance and place it in a sealed bag.

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

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