What Is Mebentel 100 mg?
Mebentel 100 mg is a mebendazole-based anthelmintic tablet used to treat common intestinal worm infections in adults and children. Mebendazole belongs to the benzimidazole drug class and has been a first-line deworming treatment for decades. Each tablet contains 100 mg of mebendazole and is available in a convenient pack of 6.
How Does Mebentel 100 mg Work?
Mebendazole works by binding to beta-tubulin proteins inside the worm, disrupting the parasite’s ability to absorb glucose — its primary energy source. Starved of energy, the worm dies and is cleared from the body naturally through the bowel over the following days. Because the medicine acts mainly inside the gut with minimal absorption into the bloodstream, it is generally well tolerated.
What Does Mebentel 100 mg Treat?
Mebendel 100 mg is indicated for:
- Pinworm (threadworm) — the most common worm infection in Australian children
- Roundworm — a widespread parasitic infection affecting the small intestine
- Hookworm — a soil-transmitted infection common in tropical and rural areas
- Whipworm — a stubborn intestinal infection that responds well to mebendazole
Dosage & How to Take
Dosing depends on the type of infection and is best confirmed by your doctor or pharmacist. A common approach for most worm infections is one tablet twice daily for three days. Pinworm is typically treated with a single 100 mg dose, repeated after two weeks to prevent reinfection. Tablets can be taken with or without food and should be swallowed whole with a full glass of water.
Possible Side Effects
Mebendel 100 mg is generally well tolerated. Mild side effects may include stomach discomfort, nausea, diarrhoea, or flatulence. Discontinue use and seek medical advice if you experience signs of an allergic reaction such as rash, swelling, or difficulty breathing.
Medical Information & Disclaimer
Mebendel 100 mg (Mebendazole) is an over-the-counter anthelmintic medicine used to treat intestinal worm infections. The following information is intended to support informed use — it does not replace advice from a qualified Australian healthcare professional.
Warnings & Contraindications
- Allergy: Do not use if you have a known allergy to mebendazole, any other benzimidazole, or any inactive ingredient in this product.
- Pregnancy: Mebendazole is not recommended during the first trimester of pregnancy. Use during the second or third trimester should only occur under medical supervision.
- Breastfeeding: Consult your doctor or pharmacist before use while breastfeeding.
- Children under 2: Not recommended for children under 2 years of age without medical advice.
- Liver conditions: Use with caution if you have a history of liver disease. Consult your doctor before use.
- Asthma: Some individuals with asthma may be more sensitive to this medicine. Seek medical advice before use.
Drug Interactions
Inform your doctor or pharmacist if you are taking any of the following, as they may interact with mebendazole:
- Carbamazepine or phenytoin (epilepsy medicines) — may reduce mebendazole effectiveness
- Cimetidine (for stomach acid) — may increase mebendazole blood levels
- Metronidazole — combination use requires medical supervision
- Ritonavir or other HIV medicines
- Phenobarbital or primidone
Always provide your full medication list to your pharmacist before starting treatment.
When to See a Doctor
Seek medical advice before using this product if you:
- Are pregnant, planning to become pregnant, or breastfeeding
- Are treating a child under 2 years of age
- Have liver, kidney, or blood disorders
- Have been previously treated for worm infection without success
- Experience symptoms beyond typical worm infection (unexplained weight loss, blood in stool, severe abdominal pain)
- Have been prescribed other medicines that may interact
Seek immediate medical attention if you develop signs of a serious allergic reaction — including rash, hives, facial swelling, difficulty breathing, or difficulty swallowing — after taking this medicine.
Storage & Handling
- Store below 30°C in a cool, dry place away from direct sunlight
- Do not store in the bathroom or near moisture
- Keep out of reach of children
- Do not use after the expiry date printed on the packaging
- Keep tablets in the original blister pack until use
Regulatory Compliance Notice
Therapeutic Goods Notice
This product is listed on the Australian Register of Therapeutic Goods (ARTG). Mebendazole 100 mg is available without a prescription for the short-term treatment of intestinal worm infections in Australia. This listing does not constitute an endorsement by the Therapeutic Goods Administration (TGA). Always read the label and follow directions for use. If symptoms persist, worsen, or you have concerns about your condition, seek advice from your doctor or pharmacist. Do not use this medicine for longer than directed without medical supervision.
General Medical Disclaimer
The information provided on this page is for general informational purposes only and does not constitute medical advice, diagnosis, or treatment. 24Hour Meds is not a licensed medical practitioner. All product information is sourced from manufacturer data and publicly available clinical references. Individual health outcomes vary. Always consult a qualified Australian healthcare professional before starting, stopping, or changing any medication.




