Mebendazol-Grindeks

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Mebendazol-Grindeks

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 Mebendazol-Grindeks

Property Description
Active ingredient Mebendazole (Mebendazolum)
Form Tablet (or chewable tablet)
Pharmacological class Anthelmintic (Benzimidazole derivative)
General purpose Combating intestinal parasitic worm infestations
Origin Synthetic compound

What Type of Medicine is Mebendazol-Grindeks?

Mebendazol-Grindeks is a prescription-only synthetic pharmaceutical preparation defined by its sole active ingredient, Mebendazole (Mebendazolum). The medicine is classified as an anthelmintic agent, a type of drug specifically developed to expel or kill parasitic worms in the human body. The product is manufactured by Grindeks, identifying it as a specific commercial brand containing the internationally recognized International Nonproprietary Name (INN).

It belongs to the structural and pharmacological group of benzimidazole derivatives, a class clinically recognized for its high efficacy against numerous gastrointestinal parasites. This classification confirms the drug's role as a foundational therapeutic option with broad-spectrum capability against multiple types of intestinal parasitic infestations. Mebendazole is widely used to treat these helminthic infections in both the pediatric population and adults.

Composition, Form, and General Purpose

The medication is supplied in a solid dosage form, typically as a tablet or chewable tablet, designed for oral administration. The composition is based entirely on the Mebendazole molecule, making it a single active ingredient product.

The general purpose of Mebendazol-Grindeks is to combat these helminthic infections by selectively interfering with the parasite's metabolism, acting locally within the gut. This function is achieved because Mebendazole prevents the worms from absorbing essential nutrients like glucose and disrupts their critical internal structural components, leading to the effective elimination of the parasites from the digestive system.

Regulatory References

  1. Anthelmintic Agents (NIH)

What side effects are possible with Mebendazol-Grindeks?

Possible Side Effects and Safety Information

The safety profile of mebendazole, the active ingredient in Mebendazol-Grindeks, is established through clinical trials and post-marketing surveillance, classifying adverse reactions by system-organ class and frequency.


Adverse Reaction Profile

Common Adverse Reactions (occurring in 1% to 10% of users) primarily involve the gastrointestinal system and include abdominal pain and diarrhea. These symptoms may be transient, especially in cases of massive parasitic infection.

Serious or Rare Adverse Reactions (identified mainly through post-marketing experience) include:

  • Blood and Lymphatic System Disorders: Agranulocytosis and neutropenia (decreases in specific white blood cell types) have been reported, primarily with higher doses or prolonged duration of use.
  • Hepatobiliary Disorders: Hepatitis and abnormal liver function test results.
  • Immune System Disorders: Hypersensitivity reactions, including rare cases of anaphylaxis.
  • Nervous System Disorders: Convulsions, particularly reported in infants below 1 year of age.
  • Skin and Subcutaneous Tissue Disorders: Severe skin reactions such as Stevens-Johnson syndrome (SJS) and Toxic Epidermal Necrolysis (TEN).

Safety Restrictions and Monitoring

Contraindications and Warnings:

  • The drug is contraindicated in patients with a known hypersensitivity to mebendazole or its excipients.
  • Concomitant use with metronidazole must be avoided due to the reported risk of severe skin reactions (SJS/TEN).
  • Caution is advised regarding use in children under 2 years; it is generally contraindicated in children below 1 year for mass treatment of gastrointestinal infestations due to the risk of convulsions.

Population-Specific and Dose-Related Safety Notes:

  • Pregnancy and Lactation: Use during pregnancy, particularly the first trimester, should only occur if the potential benefit justifies the risk. Caution is advised during breast-feeding.
  • Monitoring: For patients receiving the drug at higher doses or for prolonged periods (e.g., for hydatid disease), close supervision and monitoring of blood counts and liver function are necessary.

Overdose and Emergency Response

Overdose and When to Seek Help

In the event of accidental acute overdosage of Mebendazol-Grindeks, official regulatory documents indicate that manifestations may include abdominal cramps, nausea, vomiting, and diarrhea. These acute symptoms are primarily gastrointestinal disturbances.

Severe Outcomes and Systemic Toxicity

The official labeling warns that exposure to substantially higher doses than recommended, or prolonged use, is associated with severe systemic toxicity affecting multiple physiological systems. These serious, potentially life-threatening outcomes include reversible hepatic function disturbances and severe hematological disorders such as neutropenia and agranulocytosis (a severe reduction in white blood cells). Glomerulonephritis (a renal disorder) and alopecia have also been documented in such contexts. An age-specific concern is the reported incidence of convulsions in infants below the age of 1 year during post-marketing experience.

Mandated Emergency Action

If overdosage is suspected, the regulatory mandate is to seek immediate medical attention and contact a Poison Control Center or physician. Urgent medical help must be sought if the patient presents with severe or life-threatening symptoms, such as collapse, difficulty breathing, or seizures (convulsions). No specific antidote is known for Mebendazole. Management is primarily based on symptomatic and supportive treatment, with procedural steps like gastric lavage or activated charcoal administration being described options to limit further absorption. Monitoring of blood counts and liver function is required for suspected high-dose toxicity.

Therapeutic Uses of Mebendazol-Grindeks

Mebendazol-Grindeks is applied in addressing the management of intestinal parasitic infections and is used in areas where short-term symptom management is appropriate. It is relevant in contexts marked by increased discomfort related to these conditions.

The medication is used for managing infections involving nematodes, such as pinworm, whipworm, common roundworm, and hookworm. This is relevant in conditions characterized by periods of heightened symptoms and contributes to improved comfort by easing distress related to the parasitic infection.

This medication is used for managing symptom clusters that may become intense or disruptive. This includes infection-related gastrointestinal distress (abdominal pain and loss of appetite) and the specific localized discomfort of anal itching. It contributes to easing the overall symptom load and helps improve day-to-day comfort, which may assist with maintaining general well-being during symptomatic phases. The medication is often used in scenarios where treatment of family members is appropriate for managing the risk of reinfection.


Quick Fact: Supports Management of Pinworm, Roundworm, and Hookworm Infections

Regulatory References

  1. DailyMed (NIH) official drug labeling

Eligibility and Restrictions for Use

Eligibility Map: Who Can and Cannot Use Mebendazol-Grindeks — Official Regulatory Information


Eligibility Scope

Classification Eligibility Rule Regulatory Status
Adults & Children Patients two years of age and older are eligible for use for the specified intestinal infections. Established/Approved
Pediatric Restriction Use in children under two years of age is generally contraindicated or not recommended due to the reported risk of convulsions and lack of established safety data. Contraindicated/Not Recommended
Hypersensitivity Individuals with known hypersensitivity (allergy) to mebendazole or any of its excipients. Contraindicated
Drug Interaction Concomitant use with metronidazole should be avoided due to a suggested possible association with severe skin reactions. Avoid/Contraindicated
Pregnancy/Lactation Pregnancy is generally not recommended, especially in the first trimester. Lactation requires caution as excretion into human milk is unknown. Conditional/Not Recommended
Hepatic Impairment Patients with impaired liver function require caution due to the potential for increased drug levels in the body. Caution Advised

Eligibility Classifications (High-Level)

Classification Type Examples as Defined in Official Documents
Severity Classification Contraindicated (Hypersensitivity, Metronidazole use, Children < 2 years)
Context Constraints Age-dependent safety profile; Physiological state (Pregnancy/Lactation); Organ metabolism (Hepatic impairment)

Connection to the Overall Eligibility Profile

Official regulatory documents define Mebendazol-Grindeks eligibility based on absolute exclusions for known allergies and co-administration with metronidazole. Eligibility is strictly constrained by age thresholds, generally prohibiting use below two years due to safety concerns. Physiological conditions like pregnancy, lactation, and existing hepatic impairment introduce constraints where use is either not recommended or requires heightened caution and monitoring, rather than standard use.

What should I know about interactions with other medicines?

Interactions with other medicines and products

This section outlines officially documented interaction patterns for Mebendazole ( Mebendazolum) as defined by national and international regulatory authorities.


Formal Restrictions and Prohibited Combinations

The co-administration of Mebendazol-Grindeks and Metronidazole must be avoided. This restriction is a result of documented reports linking the concomitant use of these two medicines to serious cutaneous adverse reactions, specifically Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN).


Exposure-Altering Drug Interactions

Certain medicinal products can influence the concentration of Mebendazole in the bloodstream, altering its systemic exposure.

Interaction Type Interacting Substance Official Regulatory Outcome
Increase Exposure Cimetidine Inhibits metabolism, resulting in increased Mebendazole plasma concentrations
Decrease Exposure Phenytoin Increases metabolism, resulting in decreased Mebendazole plasma levels
Decrease Exposure Carbamazepine Increases metabolism, resulting in decreased Mebendazole plasma levels

Drug-Food and Population-Specific Interactions

The systemic absorption of Mebendazole is officially documented to increase when the medicine is administered with a fatty meal. Additionally, patients with impaired hepatic function may exhibit higher plasma concentrations of Mebendazole due to altered metabolism and clearance mechanisms, which is a key consideration noted in regulatory labeling.

Mechanism of Action

Targeted Structural Collapse of Parasite Cells

This domain covers Mebendazole's primary action: the high-affinity binding to the beta-tubulin subunit of the parasitic worm, which blocks its polymerization into microtubules. This structural disassembly prevents the internal organization and transport essential for nutrient uptake in the parasite's intestinal cells, initiating the subsequent metabolic cascade.

Metabolic Blockade and Energy Starvation

This mechanism operates within the energy metabolism pathway by blocking the absorption of glucose and rapidly depleting glycogen stores following cellular disruption. The resulting collapse in ATP production causes the helminth to become immobilized and unable to sustain metabolic functions, resulting in the parasite's demise.

Mechanistic Specificity and Functional Constraints

This domain is defined by the drug's selective toxicity, exhibiting significantly greater affinity for parasite beta-tubulin compared to the human analog. The mechanism is functionally constrained by Mebendazole's poor systemic absorption, which limits its action primarily to the gastrointestinal lumen and functionally constrains its inhibitory mechanism in extra-intestinal tissues.

Dosage and Administration Information

Mebendazol-Grindeks is intended for oral administration only, supplied in a tablet form that may be chewed, swallowed whole, or crushed and mixed with food to facilitate ingestion. The standard dosing schedule is specific and depends on the infection being addressed.

For the management of pinworm (enterobiasis), the regimen is a single, fixed 100 mg oral dose. For infections involving roundworm, hookworm, or whipworm, the standard regimen involves a short course of 100 mg taken twice daily (b.i.d.) for three consecutive days.

The medicine may be taken without regard to food intake, and no special procedures, such as fasting, special diets, or the use of laxatives, are required before, during, or after the treatment course. For children 2 years of age and older, the same dosage schedules apply as those prescribed for adults.

Administration Parameter Instruction Summary
Route of Administration Oral use only
Pinworm Dosing 100 mg as a single dose
Multi-Worm Dosing 100 mg twice daily for 3 consecutive days
Food Relation Taken without regard to food intake
Pediatric Use The same schedule applies to children 2 years of age and older

The duration of therapy is standardized to this short course. A second course of the same treatment may be advised only if the infection is not eliminated, and this retreatment must be administered after an interval of approximately three weeks.

Recent Clinical Evidence

Mebendazol-Grindeks: Recent Clinical Evidence

Clinical studies and public health data indicate that mebendazole, the active pharmaceutical ingredient in Mebendazol-Grindeks, is established for the treatment of various intestinal helminth infections. Global health organizations have supported its use in preventive chemotherapy programs in areas where soil-transmitted helminths (STHs) are common.


Efficacy by Helminth Type

Clinical trials, including randomized controlled studies, have assessed the antiparasitic effect of mebendazole against three primary STHs. Findings suggest a varied level of measured efficacy (reported as cure rates or egg reduction rates) depending on the species and the dosing regimen used.

  • Roundworm (Ascaris lumbricoides): Single-dose mebendazole regimens have consistently demonstrated high cure rates (often exceeding 90%) and high Egg Reduction Rates (ERRs) against roundworm infections in school-aged children.
  • Pinworm (Enterobius vermicularis): Studies evaluating single-dose mebendazole for pinworm infection have generally reported satisfactory complete clearance rates in both adult and pediatric populations, often requiring a repeat treatment course for optimal results.
  • Whipworm (Trichuris trichiura): The effectiveness against whipworm may be lower than against roundworm, with measured efficacy showing variability, particularly with single-dose regimens. Multi-day regimens may result in improved cure rates and higher egg reduction rates.
  • Hookworm (Necator americanus / Ancylostoma duodenale): Efficacy against hookworm infections has shown considerable variability across trials. Some studies suggest a multiple-dose regimen (e.g., administered over three consecutive days) may achieve significantly higher cure rates compared to a single dose.

Safety Profile and Special Populations

In clinical trials using recommended doses, mebendazole is generally observed to be well-tolerated. Reported side effects are typically mild and transient, often including gastrointestinal upset, abdominal pain, or diarrhea, particularly in individuals with high parasitic burdens.

Research has explored the use of mebendazole in pediatric populations, with studies supporting its safety and efficacy in children aged two years and older for the approved indications. For pregnant patients, the use of mebendazole is often weighed against the risks of untreated helminth infection, particularly after the first trimester, in regions where infection prevalence is high. Mebendazole is minimally absorbed systemically, contributing to a favorable safety profile for intestinal infections.

Frequently Asked Questions (FAQ)

Common questions about Mebendazol-Grindeks (FAQ)


Q: What is the specific dosing for hookworm?

Official regulatory documents indicate a specific, multi-day treatment schedule for hookworm infections. Complete details regarding the dosage (in milligrams and duration) are fully outlined in the product's official prescribing information, which should be consulted for proper use.


Q: What happens if you take too much Mebendazole (overdose)?

In the event of an accidental overdose, symptoms may include abdominal cramps, nausea, vomiting, and diarrhea. If an overdose is suspected, immediate medical attention should be sought. Management of an overdose involves seeking immediate medical assistance, where supportive measures will be determined.


Q: What is the full list of inactive ingredients (excipients) in the tablet?

The complete list of inactive ingredients, or excipients, is provided in the official prescribing information for the product. These substances are necessary to create the tablet form but are not the active medication itself. The full list should be reviewed if you have concerns about specific allergies or sensitivities.


Q: Is Mebendazole effective against tapeworms?

Official labeling for Mebendazole lists its approved use for specific intestinal worms, such as roundworm, hookworm, and whipworm. Treatment for tapeworm is not included among the core indications for this product as defined by regulatory authorities.


Q: Does Mebendazole affect my ability to drive or operate machinery?

Official product information, based on clinical data, suggests Mebendazole is not expected to impair mental alertness or affect the ability to drive or operate machinery. However, any unexpected side effects should always be discussed with a healthcare professional.

How should Mebendazol-Grindeks be stored and disposed of?

Storage and Disposal of Mebendazole Tablets

Mebendazole tablets must be stored at controlled room temperature, typically defined as 20° to 25°C (68° to 77°F), and must be strictly kept from freezing.


Storage Requirements

  • Store the medicine in a closed container and keep it tightly closed if supplied in a bottle.
  • The product requires protection from heat, moisture, and direct light.
  • It is mandatory to store Mebendazole out of the sight and reach of children.
  • For specific chewable tablet formulations, any unused medicine must be discarded within 1 to 3 months after the container is opened.

Disposal Instructions

  • Do not keep outdated medicine.
  • Do not dispose of tablets via wastewater or household waste; consult a pharmacist or healthcare professional for local take-back programs.
  • If household disposal is necessary following local guidelines, unused tablets should be removed from the original container, mixed with an undesirable substance, and placed in a sealed bag before being thrown into the trash.

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

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