Description
Treatment for Threadworm Infection (Enterobiasis)
Ovex Family Pack Tablets Overview
Ovex Family Pack Tablets are a pharmacy medicine used to treat threadworm infection, also known as enterobiasis. They contain mebendazole, an anthelmintic medicine that works by stopping threadworms from absorbing glucose, causing them to die.
Ovex is suitable for use by adults and children aged 2 years and over. The family pack is designed to allow simultaneous treatment of household members, which is essential to reduce the risk of reinfection.
Understanding Threadworm Infection
What are threadworms?
Threadworms (Enterobius vermicularis) are small parasitic worms that commonly infect the human gut. Infection is particularly common in children but can affect people of all ages.
Threadworms live in the intestines and lay eggs around the anus, usually at night. These eggs can easily spread within households through contact with contaminated hands, surfaces, clothing, or bedding.
Symptoms of threadworm infection
Many people have mild or no symptoms, but common signs include:
- intense itching around the anus, especially at night
- disturbed sleep or irritability
- scratching leading to sore or broken skin
- occasional abdominal discomfort
In females, worms may migrate to the vaginal area, causing irritation.
What Is Ovex Family Pack?
Ovex Family Pack Tablets contain mebendazole 100 mg, a well-established treatment for threadworm infection. Mebendazole has been used for many years and is recommended in UK primary care and pharmacy settings.
The family pack format recognises that treating only one person is often ineffective. All household members should be treated at the same time to break the cycle of reinfection.
How Do Ovex Tablets Work?
Mechanism of action
Mebendazole works by:
- blocking glucose uptake in threadworms
- disrupting their energy production
- causing the worms to die and be passed naturally
It acts locally in the gut and is minimally absorbed into the bloodstream.
Why hygiene matters alongside treatment
Medication kills existing worms, but it does not kill eggs. Without strict hygiene measures, eggs can be re-ingested and cause reinfection. This is why Ovex treatment must be combined with thorough hygiene practices.
What Ovex Treats — and What It Does Not
What it treats
Ovex Family Pack Tablets are used to treat:
- threadworm infection (Enterobius vermicularis)
- household outbreaks of threadworms
What it does not treat
Ovex does not:
- prevent reinfection on its own
- treat other types of worm infection
- relieve itching immediately
Itching may persist for a short time after treatment as eggs clear.
Who Is Ovex Family Pack For?
Ovex may be suitable for:
- adults and children aged 2 years and over
- households where one or more members have threadworms
- families advised by a pharmacist to treat everyone at once
It is particularly useful in homes with young children, where reinfection risk is high.
Who Should Avoid Ovex Tablets
Ovex may not be suitable if:
- the patient is under 2 years old
- you are allergic to mebendazole
- you are pregnant, especially during the first trimester
If unsure, seek advice from a pharmacist or GP.
How to Take Ovex Family Pack Tablets
Dosage
- Take one tablet as a single dose
- Each affected household member should take one tablet at the same time
A second dose after 2 weeks may be recommended to prevent reinfection.
Administration advice
- Tablets can be chewed or swallowed whole
- No laxative is required
- Take with or without food
Hygiene Measures to Prevent Reinfection
Alongside Ovex treatment, strict hygiene is essential:
- wash hands thoroughly, especially after using the toilet
- keep fingernails short and clean
- change underwear daily
- wash bedding, towels, and nightwear in hot water
- clean bathroom and kitchen surfaces regularly
These measures should be followed for at least 2 weeks.
Safety, Warnings and Side Effects
Common side effects
Ovex is generally well tolerated. Some people may experience:
- mild stomach pain
- diarrhoea
- nausea
These effects are usually short-lived.
Important safety information
- for oral use only
- do not exceed the recommended dose
- repeat dosing only if advised
When to Seek Medical Advice
Speak to a GP or pharmacist if:
- symptoms persist after treatment
- reinfection keeps occurring
- itching is severe or worsening
- threadworms affect a child under 2 years
- you are pregnant or breastfeeding
Further assessment or alternative treatment may be needed.
Use in Pregnancy and Breastfeeding
Ovex is not recommended during pregnancy, particularly in the first trimester. Breastfeeding women should seek medical advice before use.
How Ovex Compares to Other Threadworm Treatments
Ovex is the most commonly used pharmacy treatment for threadworms in the UK. Other treatments may be prescribed by a GP if infection persists or if Ovex is not suitable.
Supporting Family Health
Reducing threadworm spread relies on:
- treating all household members together
- maintaining good hand hygiene
- regular cleaning of shared spaces
Education and consistency are key to preventing recurrence.
Ovex Family Pack Tablets Summary
Ovex Family Pack Tablets provide an effective, well-established treatment for threadworm infection. By combining a single-dose medicine with strict hygiene measures, households can successfully clear infection and reduce reinfestation risk.
If symptoms persist or keep returning, further medical advice should be sought.





