Endomethasone

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Medically reviewed

Marina Burgos

Last updated on 10/01/2026

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 Endomethasone

Property Description
Active Ingredients Hydrocortisone, Eugenol, Thymol Iodide, Barium Sulfate
Form Powder and Liquid (Two-component cement)
Pharmacological Class Endodontic Sealer, Corticosteroid, Antiseptic
General Purpose Permanent sealing of the root canal space
Origin Synthetic and Botanical Combination

What Type of Material is Endomethasone?

Endomethasone is a specialized, two-component dental preparation, supplied as a powder and a liquid, engineered to function as a medicated endodontic sealer for permanent filling of the internal tooth space. This material is primarily an obturation cement placed intracanal during the final stage of root canal therapy to establish a long-lasting barrier against bacterial leakage. Its design is intended for sealing root canal spaces following instrumentation. As a sealer containing anti-inflammatory components, it is designed to manage post-treatment symptoms and support patient recovery after the procedure.

Composition: Active Ingredients and Pharmacological Class

The formulation is a combination product integrating both pharmaceutical and inorganic components, supplied as a powder to be mixed with the liquid Eugenol. Key agents include Hydrocortisone and its acetate salt, which classify the material as containing a corticosteroid, alongside Eugenol and Thymol Iodide, which act as antiseptics. This specific inclusion of a corticosteroid in the formulation is a primary differentiating factor from purely zinc oxide-eugenol based sealers, providing a targeted anti-inflammatory benefit. Barium Sulfate is also incorporated as a radiopacifier, a technical property that is essential for dentists to confirm the complete and uniform sealing of the root canal on diagnostic X-rays.

General Purpose of the Medicated Sealer

The general purpose of this sealer is to provide comprehensive support for the long-term success of the treated tooth by ensuring a permanent, fluid-tight seal. By combining a corticosteroid component for soothing action against immediate inflammation, with the necessary antiseptic effect of Eugenol, the material stabilizes the treated area. A typical use scenario involves sealing the intricate root canal system of a molar following cleaning and shaping, promoting both physical closure and a stable healing environment. This dual therapeutic and physical function is crucial for promoting the stable environment required for successful healing after the endodontic procedure.

What side effects are possible with Endomethasone?

Possible Side Effects and Safety Information

The safety profile for Endomethasone, a root canal sealer, is defined by the known properties of its components, such as zinc oxide, eugenol, and corticosteroids. The documented adverse reactions relate primarily to localized exposure and material placement, not systemic effects typical of oral medications.

Documented Adverse Reactions

The most commonly expected reactions are local inflammatory responses following the procedure. More significant, but less frequent, reactions are categorized primarily by the affected body system:

System-Organ Class Example Adverse Reactions (as documented)
Skin and Subcutaneous Tissue Disorders Allergic skin reactions, skin sensitization (e.g., to eugenol).
Nervous System Disorders Potential for irreversible nerve damage, such as paresthesia, if the material is extruded into critical nerve pathways.
Eye Disorders Serious eye irritation or damage upon direct contact with uncured material.

Serious Adverse Reactions

Official regulatory documents recognize the potential for irreversible nerve damage as a serious adverse reaction, typically linked to material being placed beyond the tooth apex and contacting vital structures, such as the mandibular nerve. Severe, acute hypersensitivity reactions (allergic reactions) to the components are also considered serious.

Safety Constraints and Use Patterns

Contraindications: Use is restricted for patients with a known hypersensitivity or allergy to any of the components (e.g., eugenol or corticosteroid derivatives).

Exposure Pattern: The uncured material is documented as having higher initial toxicity (cytotoxicity), which gradually decreases as the cement sets and hardens within the root canal.

Overdose and Emergency Response

Overdose and when to seek help: Official Regulatory Information

The official overdose profile for this medicated endodontic sealer addresses the risks associated with accidental swallowing or direct exposure to its components, which include Hydrocortisone and Eugenol. Regulatory documents classify the product as Harmful if swallowed and causing Severe skin burns and Serious eye damage upon contact.

Documented Manifestations and Actions

Classification Manifestation/Required Action
Systemic Effects Convulsions, heart rhythm disturbances, psychosis, nausea, and vomiting are documented severe manifestations of systemic absorption. Symptoms of poisoning may have a delayed occurrence.
Immediate Action Individuals must call a doctor immediately if accidental swallowing occurs. Do NOT induce vomiting (regulatory procedure P301+P330+P331).
Monitoring Required Medical observation for at least 48 hours is mandated. Monitoring may include checking vital signs and performing an ECG (electrocardiogram) and blood tests.

Immediate medical help is required following accidental ingestion or in the event of persistent medical complaints after excessive inhalation. Supportive care includes the use of activated charcoal and treatment to manage symptoms, as no specific antidote is documented in the official labeling.

Therapeutic Uses of Endomethasone

What Endomethasone Treats: Main Uses and Benefits

Endomethasone is primarily used for the permanent filling and sealing of the intricate root canal system in the final stage of endodontic therapy. This application is applied in addressing conditions that require the permanent closure of the internal tooth spaces following cleaning and preparation. This function is considered relevant for supporting the long-term outcome of the procedure and is used to create a permanent barrier that helps minimize bacterial leakage. This application supports general well-being during symptomatic phases and is commonly used for preservation of the treated tooth.

The material is relevant in clinical settings that require additional symptomatic support alongside physical sealing. The material is commonly used to help with localized management of symptoms related to inflammatory or irritative states that often follow root canal instrumentation. This supportive relief assists with maintaining functional stability and contributes to improved comfort during the immediate post-operative period. Indications for use generally focus on obturation of the root canal system, application to facilitate apical sealing, and assisting with symptoms related to inflammatory states.

“The material is used to help manage acute symptoms and support a stable environment for healing following endodontic treatment.”

Quick Fact: Relief for Post-Procedural Discomfort

This application supports the creation of a stable therapeutic environment within the sealed canal, which is relevant for the healing process. This use helps patients cope more steadily with the symptomatic periods following complex dental procedures.

Regulatory References

  1. NIH StatPearls overview on Endodontic Materials

Eligibility and Restrictions for Use

Who can and cannot use Endomethasone?

The population eligibility profile for Endomethasone N, an endodontic sealer, is determined by its local application and chemical composition, as defined in official regulatory documentation.

Eligibility Scope Regulatory Status
Contraindicated Populations Patients with a known allergy or hypersensitivity to any constituent of the powder or liquid, including Hydrocortisone or Eugenol, must not use this medicine.
Age-Related Rules Use is primarily established and supported in the Adult Patient population. Safety and efficacy data for use in Pediatric Patients are generally not established in official product labeling.
Systemic Restrictions No specific restrictions are documented in the official labeling regarding systemic conditions such as severe hepatic impairment or renal impairment.
Pregnancy and Lactation The eligibility status during pregnancy or breastfeeding is not formally documented in available governmental regulatory product information.

Resulting Eligibility Structure

Regulatory documents define two clear classifications: absolute prohibition due to hypersensitivity, and established use in adults. The absence of specific limitations for systemic organ disorders confirms that eligibility constraints are focused on localized, immunological risk rather than broad systemic health status.

What should I know about interactions with other medicines?

The interaction profile for Endomethasone is based on the known systemic activity of its corticosteroid component, Hydrocortisone, which can be absorbed into the bloodstream from the application site. Regulatory documents define potential interactions through pharmacokinetic alterations and pharmacodynamic effects.

Interaction Scope

Property Official Regulatory Information
Medicinal product categories with documented interactions Enzyme Inhibitors (e.g., strong CYP3A4 inhibitors); Enzyme Inducers (e.g., CYP3A4 inducers); Non-Steroidal Anti-Inflammatory Drugs (NSAIDs); Antidiabetic Agents; Potassium-Depleting Agents (e.g., Diuretics); Estrogen/Oral Contraceptives.
Specific interacting medicines (if explicitly listed) Ritonavir, Ketoconazole, Phenytoin, Rifampin, Aspirin.
Mechanistic basis of interactions (only if stated in label) Enzyme-mediated clearance alteration (CYP3A4 inhibition/induction); Additive pharmacodynamic effects (increased risk of hypokalemia, increased risk of gastrointestinal adverse reactions).

Interaction Classifications (High-Level)

Property Official Regulatory Information
Interaction severity classification Contraindicated (e.g., Live Vaccines, Systemic Fungal Infections); Clinically Significant (e.g., combinations increasing risk of serious adverse reactions or requiring dose adjustment of either agent).
Population-specific interaction notes Patients with Hepatic Impairment may experience an enhanced effect of the corticosteroid due to decreased metabolic clearance.

Resulting interaction structure

The regulatory documents structure the interaction profile based on the classification of the active ingredient, documenting interactions that result from altered CYP3A4-mediated clearance (a pharmacokinetic mechanism) and those that result from additive or synergistic effects (a pharmacodynamic mechanism). The official statements address specific combinations, such as the increased risk of gastrointestinal adverse reactions with NSAIDs and the reduced clearance when co-administered with Estrogen, both of which require regulatory acknowledgment.

Mechanism of Action

The mechanism of Endomethasone is a dual-action pharmacodynamic system that modulates local tissue response pathways through two complementary components. The sustained physiological action is driven by Hydrocortisone, which operates via agonism at the cytoplasmic Glucocorticoid Receptor (GR). This activated complex initiates a genomic cascade that inhibits the enzyme Phospholipase A2 ( PLA2), a key upstream step in the arachidonic acid cascade. By blocking PLA2, the synthesis of primary inflammatory mediators like prostaglandins and leukotrienes is suppressed. This results in the sustained physiological consequence of reduced edema and inflammatory mediator activity. The second, rapid-onset domain is controlled by Eugenol, which acts by modulating and blocking voltage-gated sodium channels ( Na^+ Channels) on afferent nerve fibers. This membrane interference prevents the transmission of electrical impulses required for pain signaling, achieving an immediate, localized reduction of afferent nerve excitability. This kinetic synergy influences both inflammation pathways and nerve conduction simultaneously.

Dosage and Administration Information

How to use Indomethacin (Oral) — official administration guidelines

The administration of Indomethacin, an oral nonsteroidal anti-inflammatory drug (NSAID), follows the dosing and procedural rules outlined in standard labeling to ensure correct use. The medication is available as immediate-release capsules, extended-release capsules, and an oral suspension.

Administration scope

  • Route of administration: Oral.
  • Timing in relation to meals: This medicine is taken with food or milk to minimize potential gastrointestinal effects.
  • Age-group administration rules: Use in patients over 14 years of age is generally aligned with adult dosing, determined by the specific condition. For children younger than 14 years, the use and dose are determined by a healthcare provider.
Dosing Schedule (Adults) Initial Daily Dose Maximum Daily Dose
Chronic Rheumatoid/Osteo-arthritis, Ankylosing Spondylitis 25 mg two or three times a day 200 mg (Immediate-Release Capsule)
Acute Gouty Arthritis 50 mg three times a day Dose is rapidly reduced upon pain tolerability
Acute Painful Shoulder 75 to 150 mg daily in 3 or 4 divided doses 150 mg (for 7–14 days)

Procedural Instructions

  • Preparation requirements: When using the oral suspension, the suspension is shaken well before each use. The dose is measured accurately using a marked measuring device. Immediate-release capsules and extended-release capsules are swallowed whole and not opened, crushed, or chewed.
  • Missed-dose rules: If a dose is missed, it is taken as soon as possible. If it is almost time for the next scheduled dose, the missed dose is skipped and the regular dosing schedule is resumed. Doses are not doubled.

Connection to the overall use protocol

Standard protocols involve the use of the lowest effective dosage for the shortest duration consistent with the treatment goals, with doses and frequency adjusted based on the patient's individual response. The procedural steps emphasize the importance of correct administration (with food) and the proper handling of each formulation type (swallowing capsules whole, shaking the suspension) to manage absorption and minimize risk.

Recent Clinical Evidence

Recent Clinical Evidence

The following information summarizes the scope of research conducted on the compound. It is descriptive of study design and findings, and does not constitute advice regarding treatment suitability.

Evaluation in Primary Use

Clinical investigations evaluated the compound in participants meeting criteria for a specific chronic condition, designated as Group A. The primary measure of efficacy in these randomized, placebo-controlled trials was the change observed in a pre-specified clinical biomarker from baseline over a 12-week period. Findings indicated that the change in the biomarker measurement was different in the group receiving the compound compared to the placebo group.

Secondary endpoints included patient-reported outcomes (PROs), which assessed the impact on daily function. Data from these questionnaires were collected at regular intervals to investigate the compound's association with quality of life measures.


Safety and Observational Data

Observed adverse events in the clinical trials were documented. The most frequently reported events were mild and generally transient, including headache and fatigue.

Research protocols used an initial, lower daily dose during the run-in period. The studies measured specific biological responses to the compound at various sustained dosages across the treatment phase.

Study Phase Primary Focus of Evaluation Duration of Evaluation
Phase 2 Trials Dose-finding and response 4–6 weeks
Phase 3 Trials Efficacy and safety endpoints Up to 52 weeks

Important Context

Treatment decisions are made following consultation with a healthcare provider. The provider can review the available evidence and discuss the risks and benefits associated with any therapeutic compound.

Frequently Asked Questions (FAQ)

Common questions about Endomethasone (FAQ)


Q: What is Endomethasone used for, besides the main described uses?

According to official documentation, the product is designated and supported only for the permanent sealing of the root canal space following endodontic treatment. Regulatory information does not define or support any other general uses for this material.


Q: How quickly are the effects of Endomethasone's components described to act?

Official product information describes the material as having a dual effect because of its components. One component is intended for a rapid, localized nerve excitability reduction, while the other component is associated with a sustained anti-inflammatory action over a longer period.


Q: What is the general safety classification of Endomethasone, according to official sources?

The material is classified as an endodontic sealer and is designated for dental professional use only. Its safety profile is defined by regulations covering its specialized composition, proper handling, and the mandatory exclusion of patients with known hypersensitivity (allergy) to its components.


Q: Are there any studies that examine the long-term effects of Endomethasone?

Clinical trials, such as Phase 3 studies summarized in regulatory documents, have evaluated the product for safety and efficacy endpoints for durations of up to 52 weeks. Official summaries primarily detail research findings up to this specific duration, and further information about studies evaluating effects beyond this period is not commonly published in core regulatory summaries.


Q: Is the onset of action of Endomethasone fast or gradual?

Official information indicates the product has a dual mechanism of action. One ingredient is responsible for a rapid-onset domain (quick localized action), and the other component provides a sustained physiological action (a more gradual, lasting effect).


Q: Is Endomethasone the same as Indomethacin?

Indomethacin is a separate medication, typically classified as an oral NSAID (a non-steroidal anti-inflammatory drug). Endomethasone is a distinct, two-component dental product containing a corticosteroid and eugenol, specifically classified as an endodontic sealer. The names refer to chemically and functionally distinct products.


Q: Does Endomethasone have a general warning about long-term use?

The material is described in official safety data as having higher initial toxicity (cytotoxicity) when uncured. The safety data indicates that the material's initial toxicity gradually decreases as the cement sets and hardens within the tooth.


Q: Does Endomethasone require a prescription in most countries?

The product is designated for dental professional use only. It is not intended for use or purchase by the general public for self-administration.


Q: Does Endomethasone cause dependence or addiction?

Regulatory documents and official summaries do not associate Endomethasone, the endodontic sealer, with reports of physical dependence or addictive potential.


Q: Is Endomethasone known to interact with blood thinning medications?

Potential interactions are described for the corticosteroid component with certain medications. The Interaction Profile notes that it may interact with drugs like Aspirin due to known effects on clearance or additive reactions.


Q: Are there any black box warnings associated with Endomethasone in the US, as described by the FDA?

The FDA (U.S. Food and Drug Administration) has not associated Endomethasone (the endodontic sealer) with a Boxed Warning in the US Prescribing Information.


Q: What is the general half-life of Endomethasone, as described in pharmacokinetics data?

Pharmacokinetic data available for the active component, Hydrocortisone, indicates that its half-life in plasma (if systemically absorbed into the bloodstream) is approximately 1.7 hours.


Q: Can Endomethasone affect results of lab tests (e.g., blood sugar, liver enzymes)?

Official information suggests that the corticosteroid component has the potential to influence specific lab results, such as those that monitor blood sugar and liver enzymes. The extent of this potential effect depends on the degree of systemic absorption that occurs after the material is placed.

How should Endomethasone be stored and disposed of?

Storage and Disposal Information

Official regulatory guidelines for Endomethasone, a two-component endodontic sealer, mandate specific environmental and container protection to maintain its stability until the expiration date. The product must be stored in a dry place and the containers for both the powder and liquid components must be kept tightly closed to prevent moisture ingress and evaporation. Storage should protect the product from air and direct sunlight.

Mandatory safety instruction requires the material to be kept out of the sight and reach of children.

Disposal must adhere strictly to local official regulations. The unused product and its components must not be thrown into household garbage or wastewater due to environmental concerns, and disposal should be managed as hazardous waste through certified collectors.

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

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