Vermox is an "antihelmintic," or anti-worm, medication. It prevents worms from growing or multiplying in your body.

Take Vermox exactly as directed by your doctor. The dose of mebendazole will be different for different patients. Follow your doctor's orders.

• Stop taking Vermox and seek emergency medical attention if you experience an allergic reaction (swelling of your lips, tongue, or face; shortness of breath; closing of your throat; or hives).
• Other, less serious side effects may be more likely to occur. Continue to take Vermox and talk to your doctor if you experience abdominal pain, diarrhea, or a fever.
• Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.

Medicines used to treat seizures, such as phenytoin (Dilantin), ethotoin (Peganone), mephenytoin (Mesantoin), and carbamazepine (Tegretol), may decrease the effects of Vermox. Tell your doctor if you are taking any of these medications so that your therapy can be monitored.

If you have used too much of your medicine, immediately call your local poison control center (USA) at 1-800-222-1222. If the victim has collapsed or is not breathing, call local emergency services at 911.
All others please contact your local emergency agency or number.

• Treatment of family members and other close contacts may be necessary. Pinworm is spread very easily to others in close contact with the infected person.
• To prevent reinfection, toilets must be disinfected daily, and clothing, linens, towels, and pajamas must be changed and washed daily.

Take the missed dose as soon as you remember. However, if it is almost time for the next dose, skip the dose you missed and take only the next regularly scheduled dose. Do not take a double dose of this medication.

Vermox is used to treat infections caused by worms such as whipworm, pinworm, roundworm, and hookworm. It is also used to treat infections caused by more than one of these worms at the same time.

Store Vermox at room temperature away from moisture and heat.

The presence of other medical problems may affect the use of mebendazole. Make sure you tell your doctor if you have any other medical problems, especially:
Crohn's disease or
Liver disease or
Ulcerative colitis—Patients with these diseases may have an increased chance of side effects from mebendazole