Mebentel 500 Tablet contains Mebendazole, a broad-spectrum anthelmintic (anti-worm) medication. It is used to treat a variety of intestinal parasitic worm infections, including pinworms (threadworms), roundworms, hookworms, whipworms, and tapeworms .
The 500 mg strength is typically administered as a single-dose treatment for many common worm infestations, making it a convenient option for both adults and children over 1 year of age . Mebendazole works by starving the worms, leading to their death and natural elimination from the body.
Key Differentiator: Unlike many other deworming medications that require multiple days of treatment, Mebentel 500 offers a simplified, single-tablet option for many parasitic infections.
2. Product Specifications
3. Mechanism of Action (How It Works)
Mebentel 500 (Mebendazole) works through a unique and effective mechanism:
Glucose Uptake Inhibition: Mebendazole selectively and irreversibly blocks the uptake of glucose by parasitic worms .
Energy Depletion: Without glucose, the worms cannot produce energy (ATP). Their glycogen stores become depleted.
Paralysis & Death: The worms become immobile and die slowly.
Natural Elimination: The dead worms are then naturally passed out of the body through the stool .
Important: Mebendazole is minimally absorbed into the bloodstream, with over 90% of the dose remaining within the gastrointestinal tract—where the worms reside—making it both highly effective and well-tolerated.
4. Indications & Usage
Primary Indications (FDA-Approved Uses)
Mebentel 500 is indicated for the treatment of multiple intestinal nematode (roundworm) infections, including :
Dosage Guidelines
Administration Instructions:
The tablet can be chewed, swallowed whole, or crushed and mixed with food for young children .
May be taken with or without food.
For pinworm infections, it is recommended that all household members be treated simultaneously to prevent reinfection .
5. Important Safety Warnings
Contraindications
Do not take Mebentel 500 if you are:
Pregnant or planning to become pregnant (Pregnancy Category C—embryotoxic andteratogenic in animal studies)
Breastfeeding (small amounts pass into breast milk)
Under 1 year of age
Allergic to mebendazole, other benzimidazoles (e.g., albendazole), or any tablet components
Critical Warnings
Drug Interaction: Metronidazole
Concomitant use of mebendazole with metronidazole (an antibiotic) should be avoided. There have been rare reports of Stevens-Johnson Syndrome (SJS) and toxic epidermal necrolysis (TEN)—severe, life-threatening skin reactions—with this combination .
Severe Adverse Reactions (with high/prolonged doses)
While rare at standard doses, the following have been reported when mebendazole is used at substantially higher doses or for prolonged periods :
Agranulocytosis (dangerously low white blood cell count)
Neutropenia
Glomerulonephritis (kidney inflammation)
Hepatitis and reversible liver function disturbances
Seizures
Very rare reports of seizures (convulsions) have been reported in children, including those under 1 year of age .
Choking Hazard
For young children or patients who have difficulty swallowing tablets, the oral suspension formulation (20 mg/mL) should be considered to reduce the risk of choking .
Precautions for Special Populations
6. Side Effects
Most side effects are mild, transient, and occur in less than 1% of patients .
Common Side Effects (<1% of patients)
Abdominal discomfort / pain
Diarrhea
Flatulence (gas)
Rash
Less Common Side Effects
Nausea
Vomiting
Dizziness
Headache
Loss of appetite
Temporary hair loss
Very Rare Side Effects (Post-Marketing, <1/10,000 patients)
*Observed primarily with higher and prolonged doses
Note on Fertility: Animal studies have shown no effects on fertility at doses up to 10 mg/kg/day. At higher doses (40 mg/kg), a reduction in pregnancy rate was observed in female rats .
7. International Buyer & SEO Keywords
This description is optimized for international search terms across pharmaceutical markets.
Primary Keywords:
Mebentel 500 tablet
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Buy Mebendazole online
Single dose deworming tablet
Secondary/LSI Keywords:
Pinworm treatment
Roundworm infection medicine
Anthelmintic drug
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Regulatory Note for International Shipping:
*Mebentel 500 is a prescription-only medicine in most countries (USA, UK, Canada, EU, Australia). In Canada, unauthorized mebendazole products have been subject to regulatory action . Patients should verify local import laws and ensure they have a valid prescription from a licensed physician before purchasing.*
8. Patient Counseling Points
To maximize treatment effectiveness and prevent reinfection:
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Family Treatment: For pinworms, all family members should be treated simultaneously to break the cycle of reinfection .
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Hygiene Measures: Maintain strict personal hygiene for at least 6 weeks after treatment—including frequent handwashing, keeping fingernails short, and showering instead of bathing .
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Laundry: Wash bed linens, pajamas, and underwear in hot water to eliminate eggs.
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Complete the Course: Even if symptoms improve, complete the full prescribed course, especially for multi-day regimens.
9. Storage & Disposal
Store below 30°C (86°F) in a cool, dry place.
Keep away from direct sunlight and moisture.
Keep out of reach of children.
Do not flush down the toilet. Consult a pharmacist for safe disposal.
10. Comparison: Mebentel 500 vs. Other Dewormers
Disclaimer: The information provided here is for educational and informational purposes only and is not a substitute for professional medical advice. Always consult your healthcare provider or a licensed physician to determine if Mebentel 500 is right for you, especially regarding use in children 1-2 years of age or patients with liver disease. Do not use this medication for self-diagnosed worm infections without proper medical confirmation.
