What is the treatment for Enterobius vermicularis (pinworm) infection?

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From the Guidelines

The most effective treatment for pinworms is a single dose of albendazole 400 mg, mebendazole 500 mg, or ivermectin 200 μg/kg, as recommended by the latest guidelines. When considering treatment options for pinworms, it's essential to prioritize medications that have been proven to be effective in eliminating the infection. According to the UK guidelines for the investigation and management of eosinophilia in returning travellers and migrants 1, the recommended treatment for ascariasis, which can be applied to pinworm infections, includes albendazole, mebendazole, or ivermectin. Some key points to consider when treating pinworms include:

  • The importance of proper hygiene measures to prevent reinfection, such as frequent handwashing, daily showering, and regular cleaning of toilet seats and bathroom surfaces.
  • The need to treat family members or close contacts simultaneously, even if they don't have symptoms, to prevent the spread of infection within households.
  • The use of antiparasitic medications, such as albendazole, mebendazole, or ivermectin, which work by paralyzing the worms and eliminating them through bowel movements. It's crucial to note that while the provided study focuses on ascariasis, the treatment recommendations can be applied to pinworm infections, and the latest guidelines support the use of albendazole, mebendazole, or ivermectin as the most effective treatment options 1.

From the FDA Drug Label

Mebendazole tablets are indicated for the treatment of Enterobius vermicularis (pinworm), Indications For the treatment of pinworms. The treatment for pinworms includes:

  • Mebendazole (PO), with a cure rate of 95% 2
  • Pyrantel pamoate (PO), which is indicated for the treatment of pinworms 3

From the Research

Treatment Options for Pinworms

  • The drugs of choice for the treatment of pinworm infestation are mebendazole (100 mg), pyrantel pamoate (11 mg/kg, maximum 1 g), and albendazole (400 mg), all of which are given in a single dose and repeated in two weeks 4.
  • Mebendazole and albendazole are both adulticidal and ovicidal, whereas pyrantel pamoate is only adulticidal 4.
  • For pregnant women, pyrantel is preferred to mebendazole and albendazole 4.
  • Treatment of all household members should be considered, especially if there are multiple or repeated symptomatic infections because reinfection is common even when effective medication is given 4, 5.

Effectiveness of Treatment

  • The approved antihelminthic agents are mebendazole, pyrantel embonate, and pyrvinium embonate, with success rates of up to >90% 5.
  • Albendazole and pyrantel pamoate have been evaluated for pinworm with cure rates of 94.1% and 96.3%, respectively 6.
  • For recurrent infections, prolonged treatment for up to 16 weeks (a "pulse scheme") is recommended 5.

Prevention and Hygiene

  • Good personal hygiene, such as frequent handwashing, especially after bowel movements and before meals, clipping of fingernails, avoidance of finger-sucking, nail-biting, and scratching in the anogenital area, are important preventive measures 4.
  • The involvement of all persons living in the patient's household, including sexual partners, is a prerequisite to the lasting success of treatment 5.

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Research

The Diagnosis and Treatment of Pinworm Infection.

Deutsches Arzteblatt international, 2019

Research

Treatment Options and Considerations for Intestinal Helminthic Infections.

The Journal of pharmacy technology : jPT : official publication of the Association of Pharmacy Technicians, 2014

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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