Mebendazole Tablet – Anti-Worm Treatment for Intestinal Parasites

Mebendazole works by selectively binding to beta-tubulin in parasitic worm cells, inhibiting the polymerisation of tubulin into microtubules. This disrupts the worm's ability to: - Absorb glucose, depleting its energy reserves - Form the cytoskeletal structures needed for cell division and survival - Reproduce and spread within the host Because mammalian tubulin binds Mebendazole with much lower affinity than parasite tubulin, the drug acts selectively against the parasite with minimal effect on host cells at therapeutic doses. The worms are immobilised and die, then expelled naturally from the body.

Always follow your doctor's prescription. General clinical guidelines: Pinworm (Enterobius vermicularis): - Single dose of 100 mg; repeat after 2–3 weeks to eliminate re-infection Roundworm, Hookworm, Whipworm: - 100 mg twice daily for 3 consecutive days, OR - Single dose of 500 mg Mixed infections: - 200–500 mg as directed; course duration depends on infection severity High-dose therapy (tapeworms, tissue infections): - 400–1000 mg per day in divided doses under specialist supervision Important: - Can be taken with or without food; taking with a fatty meal improves absorption - Tablets may be chewed, swallowed whole, or crushed and mixed with food - Treat all household members simultaneously for pinworm to prevent re-infection - Maintain good hand hygiene and wash bedding after treatment

Mebendazole is generally very well-tolerated, especially at single or short-course doses. Side effects are more likely with high-dose or prolonged therapy. Common (short-course): - Mild stomach pain or cramping - Nausea, diarrhoea (often due to dying parasites) - Temporary flatulence Less Common (prolonged/high-dose therapy): - Elevated liver enzymes (monitor with long-term use) - Hair loss (reversible) - Decreased white blood cell count (agranulocytosis — rare) - Rash or skin reactions Rare but Serious: - Severe allergic reaction: hives, facial swelling, breathing difficulty — seek emergency care - Stevens-Johnson Syndrome (rare skin blistering) - Toxic epidermal necrolysis Contact your doctor if you notice unusual bruising, persistent fever, or yellowing of the skin or eyes during treatment.

Pregnancy: Mebendazole is NOT recommended during the first trimester of pregnancy. Use in the second and third trimester only if clearly necessary and under medical supervision. Breastfeeding: Small amounts may pass into breast milk. Consult your doctor before use. Children under 2 years: Safety and efficacy not established. Use only under specialist guidance. Liver disease: Use with caution in patients with hepatic impairment. Liver function monitoring recommended for high-dose or prolonged therapy. Drug interactions: - Cimetidine may increase Mebendazole blood levels - Carbamazepine and phenytoin may reduce effectiveness - Inform your doctor of all medications and supplements Hygiene measures: Medication alone may not prevent re-infection. Wash hands thoroughly before meals and after toilet use. Keep fingernails short. Wash all bedding, towels, and underwear after treatment. Storage: Store below 30°C away from direct sunlight and moisture. Keep out of reach of children.

Q: What parasites does Mebendazole treat?

A: Mebendazole is effective against pinworms (threadworms), roundworms (ascariasis), hookworms, whipworms (trichuriasis), and certain tapeworm infections. Your doctor will confirm the parasite type before prescribing.

Q: Is a single dose enough?

A: For pinworm infections, a single 100 mg dose is usually effective, followed by a repeat dose after 2–3 weeks. For other worm infections, a 3-day course is typically prescribed. Always complete the full course.

Q: Can children take Mebendazole?

A: Yes, for children aged 2 years and above. Dosing is the same as adults for most infections. Consult a paediatrician for children under 2 years.

Q: Should the whole family be treated?

A: For pinworm infections, yes. All household members should be treated simultaneously to prevent re-infection, as pinworms spread easily person to person.

Q: Can I take Mebendazole while pregnant?

A: Mebendazole is not recommended in the first trimester. Use in later pregnancy should only be under direct medical supervision when benefits outweigh risks.

Q: How do I know the treatment worked?

A: Symptoms (itching, visible worms) should resolve within a few days of completing treatment. A follow-up stool test may be recommended by your doctor to confirm clearance.

Q: Which strength should I choose?

A: 100 mg is standard for pinworm (single dose) and most intestinal worm infections (3-day course). 500 mg is used for single-dose treatment of mixed infections. Higher doses (200–1000 mg) are reserved for specific indications under specialist supervision.