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PRECAUTIONS: Before taking mebendazole, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies.Tell your doctor your medical history, especially of: low blood count (anemia), liver disease, intestinal problems (e.g., Crohn's disease, ulcerative colitis).During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.It is not known whether this drug passes into breast milk. Consult your doctor before breast-feeding.

DRUG INTERACTIONS: Your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor or pharmacist first.This drug should not be used with the following medication because very serious interactions may occur: metronidazole.If you are currently using the medication listed above, tell your doctor or pharmacist before starting mebendazole.Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of: certain anticonvulsants (carbamazepine, phenytoin), cimetidine.This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.

OVERDOSE: If overdose is suspected, contact your local poison control center or emergency room immediately. US residents should call the US National Poison Hotline at 1-800-222-1222. Canada residents should call a provincial poison control center.

NOTES: Do not share this medication with others.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.

Report Problems to the Food and Drug Administration   You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088. Need help identifying pills and medications? Use the pill identifier tool on RxList.