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Introduction Uses Efficacy Side effects Use in pregnancy Precautions
Mebendazole is a type of anti-worm medication (an antihelminthic).
Mebendazole comes as a tablet that may be crushed and mixed with food or chewed after a meal.
Generally, mebendazole is prescribed to fight infestations or infections caused by worms. It is effective for a variety of worm infections, such as:
Mebendazole is highly effective in clearing intestinal worm infections. The drug works by blocking the ability of adult worms to grow and acquire the necessary nutrients for survival. As a result, their digestive functions are disrupted, and the worms ultimately die.
One or several doses may be necessary depending on the type of worm infestation, its severity, and the risk of reinfection.
Mebendazole is generally well-tolerated. Patients with severe worm infestation may have diarrhoea, vomiting, or abdominal pain as the worms are killed and excreted. Other side effects may include drowsiness, itching, headache, and dizziness.
Although rare, there have been severe allergic reactions associated with mebendazole including anaphylaxis, urticaria, morbilliform eruption and toxic epidermal necrolysis (TEN).
If you develop adverse reactions while on mebendazole, speak to your doctor as soon as possible and stop taking the drug.
Mebendazole is not recommended for use under 1 year of age.
This drug is considered a Category B3 medication. This means its safety for use in pregnancy has not been established. It is best not to be used in pregnancy, especially in the first trimester. However, your doctor will consider the best management option to maximize the potential benefit to you and minimize the possible risk to the fetus.
The dose of mebendazole may need to be adjusted in patients taking other medications or who have bowel or liver disease.
Discuss your treatment with your doctor.
Approved datasheets are the official source of information for medicines, including approved uses, doses, and safety information. Check the individual datasheet in your country for information about medicines.
We suggest you refer to your national drug approval agency such as the Australian Therapeutic Goods Administration (TGA), US Food and Drug Administration (FDA), UK Medicines and Healthcare products regulatory agency (MHRA) / emc, and NZ Medsafe, or a national or state-approved formulary eg, the New Zealand Formulary (NZF) and New Zealand Formulary for Children (NZFC) and the British National Formulary (BNF) and British National Formulary for Children (BNFC).
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