Mebental 500 Tablet

Q1: What is Mebental 500 Tablet used for?

Mebental 500 contains Mebendazole 500mg and is used to treat soil-transmitted helminth infections including roundworm (ascariasis), hookworm, and whipworm (trichuriasis) as a convenient single-dose treatment. It is also used in mass drug administration programmes for community deworming.

Q2: How does Mebendazole 500mg in Mebental 500 work?

Mebendazole binds selectively to β-tubulin in intestinal helminths, preventing microtubule polymerisation and disrupting the parasite's cell structure. It also blocks glucose uptake, rapidly depleting the parasite's glycogen energy stores, leading to immobilisation and death.

Q3: What is the difference between Mebental 100 and Mebental 500?

Both contain mebendazole. Mebental 100 (100mg) is used as two tablets per day for 3 days for most intestinal worms, or as a single tablet for pinworm. Mebental 500 (500mg) delivers the equivalent total dose in a single tablet, improving convenience and compliance, especially in mass deworming settings.

Q4: What is the correct dose of Mebental 500 Tablet?

For roundworm, hookworm, and whipworm: a single 500mg tablet is the standard single-dose regimen. For pinworm: a single dose followed by a repeat dose 2 weeks later. Your doctor will prescribe the appropriate regimen for your specific infection and clinical situation.

Q5: Should Mebental 500 be taken with food?

Mebental 500 can be taken with or without food. The tablet may be chewed, swallowed whole, or crushed and mixed with food, which is particularly useful for patients who have difficulty swallowing tablets. A fatty meal may slightly increase absorption but is generally not required.

Q6: How long does it take for Mebental 500 to work?

After a single 500mg dose, most worms are expelled from the intestine within 1–3 days. The drug acts locally in the gut with very low systemic absorption. A follow-up stool examination 3–4 weeks after treatment can confirm successful eradication.

Q7: Is a single dose of Mebental 500 enough?

For roundworm and hookworm, a single 500mg dose is usually sufficient. For whipworm, cure rates with a single dose are moderate; a repeat dose or multi-day course may improve outcomes. For pinworm, a second dose 2 weeks after the first is always recommended due to the egg-stage persistence.

Q8: What are the common side effects of Mebental 500?

Side effects are usually mild. They include transient abdominal pain, nausea, and loose stools, particularly if the worm burden is heavy. Since systemic absorption of mebendazole is very low, systemic side effects are uncommon with single-dose intestinal treatment.

Q9: Is Mebental 500 safe for children?

Mebendazole is safe and widely used in children aged 2 years and older. The 500mg single-dose tablet is used in school deworming programmes. Children under 2 years should only receive treatment under specialist supervision. The tablet can be crushed for younger children.

Q10: Can pregnant women take Mebental 500?

Mebendazole is not recommended during pregnancy, especially in the first trimester, due to embryotoxic and teratogenic potential observed in animal studies. If treatment is necessary during the second or third trimester, consult your doctor to carefully evaluate the risk-benefit balance.

Q11: How should I store Mebental 500 Tablet?

Store at room temperature between 15°C and 25°C in the original blister packaging. Protect from light and moisture. Keep out of reach of children and do not use after the expiry date.

Q12: Do I need a prescription for Mebental 500?

Yes, a prescription is recommended for Mebental 500. While mebendazole is used in mass deworming programmes, correct diagnosis of the specific worm infection ensures the most appropriate treatment is selected and that the single-dose regimen is sufficient for your particular case.