Worm infections are common worldwide, especially in children, and can cause a range of uncomfortable symptoms such as stomach pain, itching, weight loss, and fatigue. Fortunately, modern medicine has made treating these infections easier and more effective. Mebendazole over the counter is one of the most widely used medications for treating intestinal worm infections.
This guide will explain what Mebendazole is, how it works, what it treats, correct dosage guidelines, possible side effects, and key precautions.
What is Mebendazole?
Mebendazole is an anthelmintic medication (anti-worm medicine) that kills or paralyses intestinal worms so they can be passed naturally through stool. It belongs to a class of medicines called benzimidazoles.
Mebendazole works by blocking the worms’ ability to absorb glucose, which is their main source of energy. Without glucose, the worms eventually die, and your body expels them.
Worm Infections Treated by Mebendazole
Mebendazole is effective against many common intestinal parasites, including:
- Pinworms (Enterobius vermicularis) – The most common type, often causing anal itching.
- Roundworms (Ascaris lumbricoides) – Can cause abdominal pain, malnutrition, and growth problems in kids.
- Whipworms (Trichuris trichiura) – May lead to diarrhea and anemia.
- Hookworms (Ancylostoma duodenale, Necator americanus) – Can cause anemia, fatigue, and weakness.
Doctors may also use it for certain mixed-worm infections, where more than one type of parasite is present.
Mebendazole Dosage Guide
Mebendazole comes in tablet and chewable tablet forms, usually in 100 mg strength. The dosage may vary depending on the type of worm infection:
- Pinworms:
- Adults and children over 2 years: 100 mg single dose
- May need to repeat the dose after 2 weeks to prevent reinfection.
- Roundworms, Whipworms, Hookworms:
- Adults and children over 2 years: 100 mg twice daily for 3 days
Mebendazole can be taken with or without food, and tablets can be chewed, swallowed whole, or crushed for children who can’t swallow pills
How Long Does Mebendazole Take to Work?
Mebendazole starts working soon after you take it. Most worms die within a few days, but it may take a week or more for all symptoms to clear completely. If symptoms persist or return, consult your doctor, as you may need a second dose or another treatment.
Possible Side Effects of Mebendazole
Mebendazole is generally well tolerated, but like any medicine, it can have side effects. Most are mild and temporary.
Common Side Effects
- Stomach pain
- Nausea or vomiting
- Diarrhea
- Gas or bloating
Rare but Serious Side Effects
- Severe allergic reaction (rash, swelling, difficulty breathing)
- Liver problems (yellowing of skin/eyes, dark urine)
- Low white blood cell count (risk of infections)
If you notice severe symptoms, contact your doctor immediately.
Precautions and Safety Tips
- Pregnancy: Mebendazole is generally not recommended in the first trimester. Always consult a doctor before use.
- Breastfeeding: Considered safe, but confirm with your doctor.
- Repeat Treatments: Reinfection is common, especially with pinworms. Treat all family members if needed and follow good hygiene practices.
- Hygiene: Wash hands frequently, trim fingernails, and wash bedding/clothing in hot water to prevent worms from spreading.
Why Mebendazole is Popular
Mebendazole is a preferred choice for doctors worldwide because:
- It is easy to take – single dose for pinworms.
- It is safe for children over 2 years old.
- It covers multiple types of worms, making it effective even if you are unsure which worm caused the infection.
Home Care Tips Along with Mebendazole
Taking medicine alone may not be enough to prevent worms from coming back. Here are some tips to reduce reinfection:
- Wash hands after using the toilet and before meals.
- Keep nails short and clean.
- Wash fruits and vegetables before eating.
- Wear clean underwear and change them daily.
- Wash bed sheets and towels in hot water during treatment.
FAQs
1. Can children take Mebendazole?
Yes, children above 2 years can safely take Mebendazole. Always follow the recommended dosage for kids.
2. Do I need a prescription for Mebendazole?
In many countries, it is available over-the-counter, but it’s always safer to take it under medical advice.
3. Can worms come back after treatment?
Yes, reinfection is common, especially with pinworms. That’s why hygiene and sometimes a second dose are important.
4. Can I take Mebendazole on an empty stomach?
Yes, it can be taken with or without food. Some doctors suggest taking it with food for better absorption.
5. Is Mebendazole the same as Albendazole?
No, they are different medicines but work in a similar way. Your doctor may choose one depending on the type of infection.
Bottom Line
Mebendazole is a trusted and effective solution for common intestinal worm infections. With proper dosage and hygiene, it can quickly eliminate worms and improve your health. If symptoms don’t improve after treatment or if you have repeated infections, consult your doctor for further evaluation.
