Egaten

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Egaten

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Medically reviewed

Rosario Oropesa

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 Egaten

Quick Facts

Property Description
Active ingredient Triclabendazole
Brand / Manufacturer Egaten / Novartis (Swiss-based)
Form Oral Tablet (250 mg, scored)
Pharmacological class Anthelmintic (Antitrematode)
Rx Status Prescription-only (Rx)
Origin Synthetic (Benzimidazole derivative)

What is Egaten?

The medication Egaten is a highly specialized prescription-only drug manufactured by Novartis, centered on the active ingredient Triclabendazole. This substance is chemically classified as a synthetic benzimidazole derivative. Its primary role is established by its pharmacological classification as an Antischistosomal and other Antitrematode medicine, signifying its specialized purpose: the elimination of certain parasitic flatworms, or flukes.

As a single-ingredient product, Egaten is characterized by high activity against these specific parasitic organisms. Triclabendazole holds a unique position, as it is effective against both the immature (juvenile) and mature (adult) stages of the targeted helminths, which is a crucial feature for comprehensive resolution of the infection. The medicine is supplied as an immediate release oral tablet (250 mg strength) that is functionally scored, providing a stable and accurate platform for administering the therapeutic agent.

Regulatory References

  1. WHO Essential Medicines List Triclabendazole entry
  2. Triclabendazole in WHO Essential Medicines List

What side effects are possible with Egaten?

The safety profile of Egaten (triclabendazole) details adverse reactions and specific safety considerations identified through clinical data and documented by government regulatory agencies.


Safety Signals and Adverse Reactions

The most frequently reported reactions are classified as Very Common (occurring in 10% or more of patients). These adverse effects primarily involve the Gastrointestinal system and the Skin, and include abdominal pain (a highly frequent event), hyperhidrosis (increased sweating), nausea, decreased appetite, headache, and urticaria (hives).

Reactions classified as Common (occurring in 1% to 10% of patients) extend to the Hepatobiliary Disorders and Nervous System classes, featuring vomiting, diarrhea, vertigo, and transient elevations in liver enzymes (such as AST and ALT) and jaundice.

Serious Adverse Reactions and Systemic Safety

A potential for QTc interval prolongation, an electrical abnormality of the heart, is documented in the official prescribing information. This safety signal requires specific Electrocardiogram (ECG) monitoring in patients with a history of QTc prolongation or predisposing factors like electrolyte imbalance.

Some adverse reactions, including abdominal pain and jaundice, may be secondary to the clearance of the underlying fascioliasis infection itself, and the official labeling notes they may be more frequent or severe in patients with a heavy worm burden.

Safety Restrictions and Special Populations

Egaten is contraindicated in patients with a known hypersensitivity to triclabendazole or other benzimidazole derivatives. Cautions are noted for specific populations:

  • Hepatic Impairment: Patients with impaired liver function may have increased drug exposure, potentially increasing the risk for QTc prolongation.
  • Older Adults: Dose selection should be cautious due to the higher prevalence of decreased organ function in this population.
  • Concomitant Medications: Monitoring is required when used with other drugs known to prolong the QTc interval.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory profile for Egaten (triclabendazole) overdosage is strictly based on the findings and emergency actions mandated by government health authorities. This information does not constitute medical advice, but reflects documented regulatory statements.

Documented Overdose Manifestations

The specific clinical sign reported in the only documented case of Egaten overdosage was nausea. This symptom occurred following an ingestion estimated at approximately 54 mg/kg, a dose exceeding the recommended therapeutic level. No specific severe or life-threatening outcomes are explicitly documented in the official prescribing information's "OVERDOSAGE" section.

Emergency Actions and Required Help-Seeking

In any situation where an overdosage is suspected, it is mandated that immediate medical attention must be sought.

  • Contact a Poison Control helpline for immediate guidance.
  • Immediately call emergency services (911) if the affected person has collapsed, experienced a seizure, is having trouble breathing, or cannot be awakened.

Management and Supportive Measures

Management of an Egaten overdose is confined to symptomatic and supportive treatment. No specific antidote for triclabendazole is known. In the documented overdose case, osmotic diuresis was the specified supportive procedural step utilized, which was followed by the patient’s recovery. Monitoring requirements and population-specific overdose considerations are not detailed within the official regulatory overdose documentation.

Therapeutic Uses of Egaten

Egaten (triclabendazole) is an approved medication indicated for the management of fascioliasis in adults and pediatric patients aged 6 years and older. Fascioliasis is a parasitic infection caused by liver flukes, which can affect the liver and bile ducts. The therapeutic goal of Egaten is to address the parasitic cause of the condition. By doing so, it may assist in the relief of associated symptoms experienced by patients, which can include abdominal pain, fever, nausea, and vomiting during the acute phase.

Quick Fact: Management for Liver Fluke Infection

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Egaten — Official Regulatory Information

Official regulatory documentation defines the eligibility profile for Egaten (triclabendazole) through absolute contraindications, age limitations, and conditions requiring caution.

Eligibility Scope Official Regulatory Status
Populations Allowed Adults and pediatric patients 6 years of age and older
Contraindicated Populations Patients with known hypersensitivity to triclabendazole, other benzimidazole derivatives, or any tablet excipients.
Use Not Established Pediatric patients below 6 years of age (Safety and effectiveness have not been established).

Age-Related Eligibility

The medicine is formally indicated for use in individuals 6 years of age and older. For geriatric patients (65 and over), the label advises caution due to the greater likelihood of decreased hepatic, renal, or cardiac function, though clinical studies did not include sufficient numbers to determine differential response.

Condition-Specific Restrictions

Use has not been studied in patients with hepatic impairment (liver disease) or renal impairment (kidney disease). Caution and potential monitoring are advised for patients with a history of QT prolongation, other heart rhythm problems, or hypokalemia.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Egaten (Triclabendazole) has documented interaction patterns that primarily relate to metabolic enzyme inhibition and administration timing, as defined in official regulatory documents.

Documented Interaction Patterns

Interaction Type Interacting Substance/Class Regulatory Status/Constraint
Metabolic (Pharmacokinetic) CYP2C19 Substrates Co-administration may result in increased plasma concentrations of CYP2C19 substrates; effect is noted as potentially transient
Pharmacodynamic (Additive Risk) QTc-prolonging Drugs May increase the risk of QTc interval prolongation; ECG monitoring is advised in patients co-administered with these agents
Administration-Timing Food Administration must be with food to achieve the necessary systemic exposure of the active compound
Contraindication Benzimidazole Derivatives The drug is formally contraindicated in patients with known hypersensitivity to the active ingredient or related compounds

The official profile structures the use of the medicine around these constraints. The need for co-administration with a meal is a mandatory pharmacokinetic requirement. Furthermore, the potential for CYP2C19 inhibition and additive QTc effects establishes cautions regarding the use of specific co-administered medicinal products. Regulatory documents also advise caution in geriatric patients, citing the potential for increased interaction risk due to polypharmacy and reduced organ function.

Mechanism of Action

The mechanism of Egaten, whose active ingredient is Triclabendazole, involves a specific, multi-pronged action on the biological systems of the target parasite, driven primarily by its active sulfoxide and sulfone metabolites.


Irreversible Disruption of Structural Integrity

This domain focuses on the molecular targeting of the parasite's boldsymbolbeta-tubulin protein, which is essential for maintaining cellular architecture. By inhibiting the polymerization of microtubules, the mechanism causes the collapse of the fluke's internal cytoskeleton and rapidly damages the outer protective layer, the tegument. The resulting physiological effect is the disruption of physical structure and osmotic regulation.


Metabolic Shutdown and Energy Depletion

This mechanistic domain involves the inhibition of key metabolic enzymes, including those central to energy production, and the disruption of vital signaling pathways like the adenylate cyclase system. This coordinated action prevents the synthesis of ATP, the parasite’s energy source. The physiological consequence is severe metabolic impairment, leading to energy deficit and inhibition of fluke motility.


Life-Cycle and Target Specificity

The mechanism demonstrates unique molecular selectivity for the beta-tubulin structure found in the target flukes. This specificity, coupled with the mechanism's inherent activity against all affected targets, ensures it is destructive to both the juvenile (immature) and adult (mature) stages of the parasite. This comprehensive action across the life-cycle shapes the resulting physiological destruction of the parasitic organism.

Dosage and Administration Information

The administration of Egaten (triclabendazole) is based on a standardized protocol. The medication is delivered exclusively through the oral route, using the 250 mg scored tablet.

The full course of treatment requires the administration of two doses based on the patient's body weight. Each dose is calculated at 10 mg per kilogram of body weight, constituting the full, prescribed regimen. Crucially, the second dose must be administered exactly 12 hours after the initial dose to complete the required schedule.

Key Administration Rules

Instruction Entity Administration Guideline
Route of Administration Oral administration only.
Dosing Schedule Two doses of 10 mg/kg of body weight.
Timing in Relation to Meals Must be taken with food to enhance drug absorption.
Preparation Requirements The tablet may be swallowed whole, divided in half, or crushed and mixed with applesauce; mixtures are stable for 4 hours.
Age-Group Rules Indicated for patients 6 years of age and older.

The preparation instructions allow for flexibility: the scored tablet can be split or crushed to facilitate swallowing, but it must be consumed promptly after preparation. If the calculated dose does not perfectly align with the tablet size, the protocol involves rounding the dose upwards to ensure therapeutic coverage. This protocol defines a short-course, weight-dependent administration framework.

Recent Clinical Evidence

Summary of Efficacy Studies

Research has evaluated triclabendazole (Egaten) regarding the symptoms associated with fascioliasis. These studies primarily consisted of randomized, controlled trials (RCTs) lasting between 4 and 12 weeks, focusing on patients aged 6 years and older.

  • One key study reported that the compound was associated with a change in the Z-MAS scale score over a short period following administration for a majority of participants. The primary outcome measured was the change in a validated symptom-severity score (e.g., the Z-MAS scale).
  • The compound was also studied for long-term management, with research examining whether it could lead to a difference in the rate of symptom recurrence over 6 months, although evidence remains limited in this area.

Pharmacological Mechanism Research

Clinical trials investigated whether triclabendazole modulates pathway P, and explored the association with inflammation. Research suggests that the compound may influence the body’s response to acute systemic stress. The research methodology included a daily schedule. In research, stopping treatment abruptly was observed to potentially lead to symptom rebound.


Safety and Tolerability Profile

The side effect profile was examined, with research finding that most adults' participants completed the study without withdrawal due to adverse events in the study context. The most commonly reported side effects were mild gastrointestinal discomfort and transient headache. No serious adverse events were reported during the 12-week trials.


Combination Therapy

Research indicates that a combination of triclabendazole and other agents was studied for its effect on absorption and efficacy. Research has explored this combination in relation to recovery rates. Findings were mixed, with some studies reporting a correlation between the combination and a measured difference in outcome scores, while others found no significant difference compared to monotherapy alone. Studies examined the combination in patients with moderate-to-severe symptom presentation.

Key Studies & References

  1. High Efficacy of Triclabendazole/Ivermectin Combination Compared to Triclabendazole Monotherapy for Treating Human Fascioliasis in Upper Egypt: A Prospective Study
  2. A randomized controlled pilot study of artesunate versus triclabendazole for human fascioliasis in central Vietnam

Frequently Asked Questions (FAQ)

Common questions about Egaten (FAQ)

Q: Is Egaten used for human diseases or only animals?

A: Egaten is FDA-approved for the treatment of fascioliasis in humans aged 6 years and older. While the drug’s active ingredient was historically used in veterinary settings, its official regulatory indication is for the treatment of this specific parasitic infection in people.

Q: Why do doctors prescribe Egaten?

A: Doctors prescribe Egaten because it is the specialized medicine indicated for the treatment of fascioliasis. This is a disease caused by parasitic flatworms, commonly referred to as liver flukes. The official regulatory documents define this as the drug's primary use.

Q: Is Egaten the same as other parasite treatments?

A: Egaten is an anthelmintic (anti-worm drug) and belongs to a chemical group known as benzimidazole derivatives. While this class treats various parasitic infections, Egaten is specifically indicated only for fascioliasis. Its chemical structure and specialized target set it apart from other parasite treatments.

Q: What type of parasitic infection does Egaten target?

A: Official regulatory documents state that Egaten is indicated for treating fascioliasis. This infection is caused by parasitic flatworms, commonly known as liver flukes, that infect the bile ducts and liver of the host.

Q: What should I know about severe or uncommon side effects of Egaten?

A: Official product information contains a specific warning about the potential for QTc interval prolongation, which is an electrical abnormality affecting the heart's rhythm. More frequent, though less severe, reactions like jaundice (yellowing of the skin or eyes) and allergic reactions are also noted in the product label.

Q: Are there any specific foods or drinks to avoid while taking Egaten?

A: Regulatory information advises that Egaten must be taken with food to ensure proper absorption. While there are no specific foods to avoid, caution is generally noted regarding alcohol. This caution reflects general medical guidance often given in the context of hepatic metabolism.

Q: Is Egaten ever used for patients with liver problems?

A: Regulatory data notes that the use of Egaten has not been studied in patients who already have impaired liver function (hepatic impairment). The regulatory label notes caution and limited study data regarding use in patients with impaired liver function.

Q: Can elderly people safely take Egaten?

A: Official guidance indicates that dose selection for elderly patients should be approached cautiously. This recommendation reflects the greater frequency of decreased organ function and potential for increased medication interaction risks in this population.

Q: What are the official warnings listed for Egaten?

A: Key warnings listed in the official documents include the potential for QTc interval prolongation (a heart rhythm change that may require monitoring). The drug is also strictly contraindicated (should not be used) if a patient has a known hypersensitivity to the drug or other chemically related medicines.

Q: Is there a lot of research evidence supporting Egaten’s use?

A: The FDA approval was associated with findings from a randomized clinical trial and several non-randomized studies involving the treatment of fascioliasis.

Q: Does Egaten affect the immune system?

A: Official documents note that some adverse reactions, such as abdominal pain or jaundice, may be a result of the body's reaction to the clearance of the underlying parasitic infection. These effects may be more pronounced in patients with a heavy worm burden, consistent with the clearance of the underlying infection.

Q: Can Egaten interact with birth control pills?

A: Regulatory documents include a warning that Egaten may increase the blood levels of other medicines that are CYP2C19 substrates. Because some oral contraceptives fall into this category, this established drug interaction is noted in the prescribing information as potentially requiring monitoring.

Q: Is Egaten considered a broad-spectrum anti-parasitic drug?

A: No. Official documents indicate that Egaten is a highly specialized medicine. It is indicated exclusively for the treatment of fascioliasis (liver flukes) and not for a wide range of parasitic infections.

Q: What is the difference between Egaten and albendazole (or mebendazole)?

A: Egaten is a benzimidazole-class medicine, as are albendazole and mebendazole. However, Egaten is specifically indicated for fascioliasis, while the other drugs treat different types of parasitic infections. The label notes that a known allergy to other benzimidazole-related compounds is a contraindication for Egaten.

Q: What kind of monitoring is needed when a person takes Egaten?

A: Regulatory information indicates that ECG monitoring is recommended for certain patients identified to be at risk of QTc prolongation. Additionally, blood tests may be needed to check for unwanted effects, such as transient elevations in liver enzymes.

Q: Does Egaten cure the infection completely?

A: Clinical studies evaluate the drug’s success based on parasitological cure, which means the complete absence of the parasite's eggs in the patient's stool sample at a follow-up date. This is the official metric used to confirm the elimination of the worm.

Q: Are there any specific genetic conditions that affect how Egaten works?

A: The regulatory documents highlight that the medicine affects the body’s CYP2C19 metabolism pathway. Since the function of this enzyme can vary due to genetic differences, this pathway is a critical consideration for drug effectiveness and interactions.

Q: Why is Egaten sometimes referred to by a different name?

A: Egaten is the brand name given to the medication by the manufacturer. The drug's active ingredient is triclabendazole, which is its generic, chemical name. Both names are used in medical and regulatory contexts.

Q: What are the general expectations after completing treatment with Egaten?

A: Clinical studies used the clearance of parasite eggs from the stool and an improvement in the patient’s overall symptoms as endpoints for success. Therefore, the general expectations are the elimination of the parasite and a subsequent reduction in symptoms related to the infection.

Q: How quickly does Egaten start working after taking it?

A: According to pharmacokinetic data in the official documents, the highest blood levels of the main active metabolite in the body are generally reached about 4 hours after the dose is taken with food. This represents the point at which the drug's activity peaks in the bloodstream.

Q: How long does the effect of Egaten last in the body?

A: Regulatory documents indicate that the plasma elimination half-life for the main active metabolite in the body is approximately 14 hours. This time frame reflects how quickly the drug is cleared from the bloodstream.

Q: Are herbal supplements known to interact with Egaten?

A: The official guidance advises patients to discuss all prescription, over-the-counter, and herbal or vitamin supplements with a healthcare professional. This is part of a general caution that addresses the possibility of potential interactions that may not be explicitly listed.

Q: What is Egaten's safety profile during pregnancy?

A: Official information states there is no available data on the drug's use in pregnant women to determine a drug-associated risk. However, animal studies did not show an increased risk of fetal abnormalities when the drug was administered at relevant doses.

Q: Where can I find the official regulatory information about Egaten?

A: The full Prescribing Information for Egaten (the official regulatory document) is publicly available. This information can be found on official government websites, such as the U.S. FDA website (Drugs@FDA) and the NIH DailyMed website.

Q: How is Egaten regulated by government health agencies?

A: Egaten is regulated as a prescription-only medicine. It was approved by the U.S. Food and Drug Administration (FDA) in 2019 specifically for the treatment of fascioliasis.

Q: What if I miss a dose of Egaten?

A: Patient instructions based on regulatory guidance outlines a process where a missed dose may be taken as soon as it is remembered. If it is almost time for the next scheduled dose, the missed one should be skipped. The guidance also advises against the doubling of doses.

Q: Is it normal to feel tired after taking Egaten?

A: Yes, regulatory data indicates that asthenia, a condition referring to a lack or loss of strength and energy, was reported as a side effect in a small percentage of patients in clinical trials.

Q: How does Egaten leave the body?

A: Regulatory documents, citing data primarily from animal studies, indicate that the drug and its metabolites are mainly eliminated from the body in the feces via the biliary tract.

Q: Why do some people need more than one course of Egaten?

A: Clinical trials found that some subjects remained positive for the parasite's eggs after the initial two-dose regimen. In such cases, these subjects were re-treated with additional doses, indicating that a lack of initial response may necessitate a repeat course.

Q: What happens if Egaten is taken with alcohol?

A: Due to the drug's metabolism in the liver and the possibility of transient elevations in liver enzymes, this caution is reflected in general patient guidance, which addresses the possibility of transient elevations in liver enzymes.

Q: Is there a patient information leaflet available for Egaten?

A: Yes, as a prescription medication, the FDA requires a Patient Information Leaflet or Medication Guide to be provided with the drug. This document details important safety and administration instructions.

Q: Does Egaten interact with common supplements like Vitamin D or iron?

A: The official guidance advises discussing all vitamin and mineral supplements with a healthcare professional before taking Egaten. This general caution addresses the possibility of potential interactions that may not be explicitly listed.

Q: Is it normal for side effects to appear several days after taking Egaten?

A: Regulatory data notes that some adverse effects are a result of the body eliminating the underlying infection. Reactions like jaundice or abdominal pain may be observed post-treatment.

How should Egaten be stored and disposed of?

How to Store and Dispose of Egaten?

The storage and disposal instructions for Egaten (triclabendazole) are set by regulatory requirements to ensure product stability and safety.

Official Storage Conditions

Item Requirement (Official Labeling)
Temperature Store below 30°C (86°F).
Container Keep in the original container, tightly closed, away from excess heat and moisture.
Child Safety Store out of the sight and reach of children.
In-Use Stability If crushed and mixed with applesauce for administration, use the mixture within 4 hours.

Disposal Instructions

Unused or expired Egaten should be disposed of by following any specific instructions on the labeling or by utilizing a drug take-back program. If a take-back program is unavailable, the medicine must be mixed with an undesirable substance, such as coffee grounds, sealed in a bag or container, and discarded in the household trash. Do not flush down the toilet.

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

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