Pinworm infections, also known as enterobiasis, are a common intestinal parasite infection caused by the pinworm Enterobius vermicularis. The most common symptoms of pinworm infections are itching around the anus and restless sleep.
While pinworm infections are easily treatable with oral medication, some people may wonder if it’s possible to take too much pinworm medication. The short answer is yes, it is possible to take too much pinworm medication. However, when taken as directed, pinworm medications are generally considered safe and effective.
How are pinworm infections treated?
Pinworm infections are most commonly treated with oral anthelmintic medications that kill the parasites. The two most commonly prescribed pinworm medications are:
- Mebendazole (Vermox, Emverm)
- Albendazole (Albenza)
These medications work by preventing the pinworms from absorbing glucose, which essentially starves and kills them. The medications are taken as a one-time oral dose and then repeated in 2 weeks to kill any newly hatched pinworms. This ensures complete eradication of the infection.
What happens if you take too much pinworm medication?
When taken as prescribed by a doctor or according to package directions, pinworm medications are very safe. However, taking more than the recommended dose can lead to potential side effects and toxicity.
Possible side effects of taking too much pinworm medication include:
- Nausea, vomiting, diarrhea
- Abdominal pain
- Headaches, dizziness
- Hair loss
- Fever, rash
In severe cases, overdose can damage the liver, kidneys, or bone marrow. Seek immediate medical care if you suspect a pinworm medication overdose.
What is the recommended dosage for pinworm medications?
The recommended dosages for pinworm medications are:
- Mebendazole:
- Children 2 years and older: 100 mg as a single dose, repeat in 2 weeks
- Adults and teenagers: 100 mg as a single dose, repeat in 2 weeks
- Albendazole:
- Children 2 years and older: 400 mg as a single dose, repeat in 2 weeks
- Adults and teenagers: 400 mg as a single dose, repeat in 2 weeks
It’s important to carefully follow the dosage directions based on age. Never exceed the recommended dosage without medical supervision.
Who should not take pinworm medications?
Certain people should not take pinworm medications or should only take them under medical supervision:
- Pregnant or breastfeeding women
- Young children under 2 years old
- People with liver or kidney disease
- People taking certain medications that interact with pinworm drugs
Pregnant women may take mebendazole in some cases under strict medical supervision. Albendazole is contraindicated in pregnancy.
Are there any drug interactions with pinworm medications?
Pinworm drugs may interact with other medications. Some notable drug interactions include:
- Blood thinners like warfarin – pinworm drugs can reduce their effectiveness
- Seizure medications like phenytoin – pinworm drugs can affect levels in the body
- Corticosteroids – may increase risk of bone marrow suppression
- Cimetidine – can inhibit metabolism of pinworm drugs
Always let your doctor know about any medications you take, including over-the-counter drugs, herbs, and supplements, to monitor for interactions.
How to prevent pinworm infections
Along with medication, practicing good hygiene can help prevent reinfection and spread to others:
- Wash hands frequently, especially after using the toilet and before eating
- Trim fingernails short and avoid nail biting
- Avoid scratching the anal area
- Wear tight underwear while sleeping
- Clean bathroom and kitchen regularly
- Wash underwear, pajamas, and bedding in hot water frequently
Everyone in the household should be treated at the same time to prevent transmission back and forth. Medication may need to be repeated every 2-3 weeks until the infection resolves.
Conclusion
While pinworm infections are common, they can easily be cured with oral medication like mebendazole or albendazole. It’s important to take pinworm medication exactly as prescribed and not exceed the recommended dosage due to potential toxicity. Certain groups like pregnant women and young children may not be able to take pinworm medications. Practicing good hygiene can help resolve infections and prevent transmission. See a doctor if pinworm symptoms persist after treatment.