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Topical application of ivermectin for human ectoparasites
M Y Youssef1, H A Sadaka, M M Eissa
1Department of Parasitology, Faculty of Medicine, Alexandria University, Alexandria, Egypt.
The American Journal of Tropical Medicine and Hygiene
|December 1, 1995
Summary
Topical ivermectin effectively treats human ectoparasites like head lice and scabies. While a single application cured head lice, scabies required a second dose in half of the patients.
Area of Science:
- Dermatology
- Parasitology
- Pharmacology
Background:
- Ivermectin is a widely used veterinary antiparasitic.
- It is the primary treatment for human onchocerciasis.
- Ectoparasitic infections like scabies and head lice affect millions globally.
Purpose of the Study:
- To evaluate the efficacy of topical ivermectin against human ectoparasites.
- Specifically assessing its effect on Sarcoptes scabiei (scabies) and Pediculus humanus capitis (head lice).
Main Methods:
- A study involving topical application of ivermectin.
- Patients with Sarcoptes scabiei and Pediculus humanus capitis infections were treated.
- Treatment efficacy was assessed after single and repeated applications.
Main Results:
- Topical ivermectin demonstrated a curative effect on head lice following a single application.
- A single application of ivermectin was also effective for scabies.
- However, 50% of scabies patients required a second application five days later for complete resolution.
Conclusions:
- Topical ivermectin is an effective treatment for human ectoparasitic infections.
- It offers a potentially convenient single-application cure for head lice.
- Scabies treatment may necessitate a repeat application for optimal outcomes.