Mebendazole (By mouth)

Introduction

Mebendazole (me-BEN-da-zole)

Treats infections caused by worms.

Brand Name(s)

Emverm

When This Medicine Should Not Be Used

How to Use This Medicine

Liquid, Chewable Tablet

  • Your doctor will tell you how much medicine to use. Do not use more than directed.
  • Chewable tablet: You may chew the tablet, swallow it whole, or crush it and mix it with food.
  • Oral liquid: Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup.
  • Take all of the medicine in your prescription to clear up your infection, even if you feel better after the first few doses.
  • Read and follow the patient instructions that come with this medicine. Talk to your doctor or pharmacist if you have any questions.
  • Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.
  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

Drugs and Foods to Avoid

Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.

  • Some medicines can affect how mebendazole works. Tell your doctor if you are using cimetidine.

Warnings While Using This Medicine

  • Tell your doctor if you are pregnant or breastfeeding, or if you have liver disease.
  • To help prevent the infection from coming back:
    • Wash your hands often, especially before you eat and after you use the toilet. Make sure to wash under your fingernails.
    • Wash all fruits and vegetables thoroughly or cook them well.
    • For several days after your treatment ends, use a vacuum or damp mop to clean the bedroom floor. Avoid sweeping with a dry broom because it may stir up dust.
    • Wash all bedding and any clothes you wear while sleeping. Do not shake these items.
    • Make sure your underwear fits closely and wear it both day and night. Wear a clean pair each day. Be sure to wear shoes.
    • During treatment, clean the toilet seats after each use.
  • Call your doctor if your symptoms do not improve or if they get worse.
  • Your doctor will check your progress and the effects of this medicine at regular visits. Keep all appointments.
  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

Possible Side Effects While Using This Medicine

Call your doctor right away if you notice any of these side effects:

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
  • Dark urine or pale stools, nausea, vomiting, loss of appetite, stomach pain, yellow skin or eyes
  • Fever, chills, cough, sore throat, body aches
  • Unusual bleeding, bruising, or weakness

If you notice these less serious side effects, talk with your doctor:

  • Diarrhea, stomach pain

If you notice other side effects that you think are caused by this medicine, tell your doctor

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088

Version Info

  • Last reviewed on 10/12/2016

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