Vermox tablets and suspension contain the active ingredient mebendazole, which is a type of medicine called an anthelmintic. It is used to treat certain types of worm infections of the gut.
Mebendazole works by preventing worms from being able to absorb sugars that are essential for their survival. This depletes the energy stores of the worms, leading to their eventual death within a few days. The dead worms are then excreted from the gut in the stools.
Mebendazole is used mainly in the treatment of threadworm, however is also used to treat infections of roundworm, whipworm and hookworm.
A single dose is effective for treating threadworm infections, but a second dose may be needed after two weeks if the infection comes back. Since threadworms are spread very easily it is recommended that the whole family are treated at the same time.
For treating roundworm, hookworm or whipworm infections, one dose is needed twice a day for three days.
This medicine should not be used if you are allergic to any of its ingredients. Please inform your doctor or pharmacist if you have previously experienced such an allergy.
If you feel you have experienced an allergic reaction, stop using this medicine and inform your doctor or pharmacist immediately.
Certain medicines should not be used during pregnancy or breastfeeding. However, other medicines may be safely used in pregnancy or breastfeeding providing the benefits to the mother outweigh the risks to the unborn baby. Always inform your doctor if you are pregnant or planning a pregnancy, before using any medicine.
Medicines and their possible side effects can affect individual people in different ways. The following are some of the side effects that are known to be associated with this medicine. Just because a side effect is stated here, it does not mean that all people using this medicine will experience that or any side effect.
The side effects listed above may not include all of the side effects reported by the medicine's manufacturer.
For more information about any other possible risks associated with this medicine, please read the information provided with the medicine or consult your doctor or pharmacist.
You should tell your pharmacist if you are already taking any medicines, including those bought without a prescription and herbal medicines, before you take this medicine. Similarly, check with your pharmacist before taking any new medicines in combination with this one, to make sure that the combination is safe.
Cimetidine may decrease the breakdown of mebendazole by the liver and so increase the amount of mebendazole in the blood.
The manufacturer recommends that mebendazole should not be used in combination with the antibiotic metronidazole.