Mebendazole 400mg

Generic For: Vermox

Mebendazole (brand name Vermox) is a prescription anthelmintic medication used to treat common intestinal worm infections, including pinworm, whipworm, roundworm, and hookworm. It works by preventing the worms from absorbing the sugars they need to survive. After a licensed provider reviews your information, your order ships from a licensed U.S. pharmacy.

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30-day supply · $5.00/capsule

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  1. Select your medication
  2. Licensed providers review & prescribe
  3. Our licensed U.S. pharmacists fill your prescription
  4. Delivered to you as soon as the next day

Price: $300.00

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Buy Mebendazole 400mg (Vermox) Online

An anthelmintic (antiparasitic) medication for pinworm, whipworm, and roundworm infections

Mebendazole 400mg Quick Facts

Drug classAnthelmintic (antiparasitic)
TreatsPinworm, whipworm, roundworm, hookworm infections
FormCapsule
Typical dosingTake 1 capsule by mouth twice daily. Do not take with metronidazole tablets.
Prescription requiredYes — prescription only

What Is Mebendazole 400mg?

Mebendazole is a prescription antiparasitic medication in the anthelmintic class, sold under the brand name Vermox. It is used to treat intestinal infections caused by parasitic worms such as pinworm, whipworm, roundworm, and hookworm. Mebendazole works by blocking the worms' ability to absorb glucose, which depletes their energy stores and causes them to die. The worms are then eliminated from the body through the digestive tract over several days.

What Does Mebendazole 400mg Treat?

Pinworm infection (enterobiasis)
Whipworm infection (trichuriasis)
Roundworm infection (ascariasis)
Hookworm infection (Ancylostoma duodenale)
Hookworm infection (Necator americanus)
Mixed intestinal worm infections

Mebendazole 400mg Dosage

Pinworm: 100 mg by mouth as a single dose; may repeat in 3 weeks if needed.
Whipworm, roundworm, hookworm: 100 mg by mouth twice daily for 3 days.
Take with or without food; follow your prescriber's directions.

Your prescriber will determine the dose and duration that are right for you. Always follow the directions on your prescription label.

Mebendazole 400mg Side Effects

Common side effects

  • Stomach pain
  • Nausea
  • Vomiting
  • Diarrhea
  • Gas or bloating
  • Loss of appetite
  • Headache

Serious side effects

Stop taking this medication and seek medical attention right away if you experience:

  • Severe allergic reaction (rash, hives, swelling, trouble breathing)
  • Severe skin reactions (Stevens-Johnson syndrome, toxic epidermal necrolysis)
  • Signs of low blood cell counts (fever, sore throat, unusual bruising or bleeding)
  • Seizures (convulsions)
  • Signs of liver problems (yellowing of skin or eyes, dark urine)

Warnings & Interactions

Do not use if allergic to mebendazole or any component of the product
Do not take with metronidazole — risk of serious skin reactions
May lower blood cell counts (neutropenia); prolonged or high-dose use requires monitoring
Tell your provider if you are pregnant or planning pregnancy
Tell your provider if you are breastfeeding
Not recommended for children under 2 years unless directed by a provider
Inform your provider of all medications, including cimetidine, which may raise mebendazole levels

Tell your prescriber about all medications, supplements, and health conditions before starting mebendazole 400mg.

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Frequently Asked Questions

What is mebendazole used for?

Mebendazole is an anthelmintic (antiparasitic) medication used to treat intestinal worm infections, including pinworm, whipworm, roundworm, and hookworm. It works by preventing the worms from absorbing the glucose they need to survive.

Do I need a prescription for mebendazole?

Yes. Mebendazole is a prescription-only medication in the United States. A licensed healthcare provider must review your health information and determine that treatment is appropriate before it can be dispensed.

How does ordering and shipping work?

After you place your order, a licensed provider reviews your health information. If a prescription is appropriate, your medication is dispensed and shipped from a licensed U.S. pharmacy directly to your address.

How long does mebendazole take to work?

The worms are typically killed within a few days of starting treatment and are passed in the stool over the following days. For pinworm infections, your provider may recommend a repeat dose after about 3 weeks to prevent reinfection.

Does my whole household need treatment for pinworms?

Pinworm infections spread easily among people living in close contact, so providers often recommend treating all household members at the same time. Ask your provider whether this applies to your situation.

What are the most common side effects of mebendazole?

The most common side effects are stomach pain, nausea, diarrhea, and gas, which are often related to the worms being expelled. Contact your provider if you develop a rash, fever, unusual bruising, or other unexpected symptoms.

Can I take mebendazole while pregnant?

Tell your provider if you are pregnant, planning to become pregnant, or breastfeeding before taking mebendazole. Your provider will weigh the potential benefits and risks and decide whether treatment is appropriate.