Dosage is based on your medical condition and response to therapy.
For treatment of pinworm infections, the medication is usually given as a single dose. If necessary, a second treatment may be given in a few weeks. For other types of common worm infections (e.g., roundworm, hookworm), take mebendazole by mouth for 3 days, usually twice a day in the morning and in the evening, or as directed by your doctor. If necessary, a second treatment may be given in a few weeks. For other types of infections, follow your doctor's directions. Your doctor may order you to take this medication more often than twice a day and for longer than 3 days.
It is very important to continue taking this medication exactly as prescribed by your doctor. Do not skip any doses. Continue to take this medication until the full prescribed amount is finished, even if symptoms disappear. Stopping the medication too early may result in a return of the infection.
Inform your doctor if your condition persists or worsens.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor right away if any of these rare but very serious side effects occur: severe abdominal pain, easy bleeding/bruising, signs of serious infection (e.g., fever, persistent sore throat), unusual/extreme tiredness, seizures, weakness, dark or pinkish urine, yellowing eyes/skin.
A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Before taking mebendazole, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.
A product that may interact with this drug is: metronidazole.
If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center.
If you are taking this medication for a long time, laboratory and/or medical tests (e.g., complete blood count, liver/kidney function tests) may be performed periodically to monitor your progress or check for side effects. Consult your doctor for more details.
Pinworm infections can easily spread to others. All family members in close contact with the patient should be treated to decrease the chance of spreading the infection.
Practice strict hygiene to prevent another infection. Wash hands frequently, especially after using the bathroom. Disinfect toilets daily. Change and launder undergarments, towels, and bedclothes daily.
If you are taking more than one dose and miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.
Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.Information last revised August 2017. Copyright(c) 2017 First Databank, Inc.
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