(BQ) Questions to Ask Your Pharmacist - list of questions for patients to ask their pharmacist or healthcare provider when obtaining a new prescription, entries provide information on drug interactions with other drugs, herbs, vitamins, supplements, food, and other substances. | M Macrobid see Nitrofurantoin Maxalt see Rizatriptan . brand names Mebendazole is no longer available in the United States. Canadian brand names Mebendazole Definition Mebendazole is an anthelmintic drug used to treat infections with parasites, such as worms. It is considered a broad-spectrum agent, meaning that it has activity against a wide variety of parasites. Purpose Mebendazole is used to treat infections with many types of worms, including: • roundworms (Ascaris lumbricoides) • hookworms (Ancylostoma duodenale and Necator americanus) • pinworms (Enterobius vermicularis) • whipworms (Trichuris trichiura) • tapeworms (Taenia solium) Mebendazole can also treat infections with more than one type of a worm at a time. Description Mebendazole is a flat, round, orange tablet that is 10 millimeters (mm) in size. It is imprinted on one side with the numbers 93 and 107. Each pill contains 100 milligrams (mg) of active drug. The medication is taken by mouth and must be prescribed by a physician. Mebendazole is on the World Health Organization’s list of essential medicines. It is also frequently used in veterinary medicine. G AL E E N C Y C L O P E D I A O F PR E S C R I PT I O N DR U G S Mebendazole is sold under the brand name Vermox in Canada. International brand names Mebendazole is sold in many countries worldwide under a variety of names, including Wormex (South Africa), Versid (Turkey), Vermicide (Taiwan), Tesical (Argentina), Sufil (Spain), and Ovex (United Kingdom). In some countries, mebendazole is only one component of the medication, and there are other medications included in the formulation. In some locations, it is only available for veterinary, not human, use. Recommended dosage For roundworm, hookworm, whipworm, or tapeworm, the recommended dosage for adults who are treated with mebendazole is 100 mg twice daily for three days. If the infestation is not cured, then this regimen should be repeated in three weeks. For pinworm, the recommended .