Elimite contains permethrin as its active component. It is a topical antiparasitic medication supplied in a 30 g tube, used to treat common skin infestations caused by mites and lice. In Hong Kong, Elimite is classified as a prescription-only product and is regulated by the Department of Health.
Permethrin belongs to the pyrethroid class of antiparasitics. It interferes with the nervous system of arthropods by prolonging the opening of sodium channels on their nerve cells. This leads to excessive neuronal firing, paralysis, and ultimately death of the parasite. Human skin cells lack the same sodium channel configuration, so permethrin has a high safety margin when applied correctly. The medication begins to act within a few hours after application, with most parasites eliminated after a single complete treatment.
Elimite is approved in Hong Kong for the topical treatment of:
These indications are based on clinical studies demonstrating that a single application of permethrin 5 % cream or lotion effectively eradicates the parasites and relieves associated itching.
These reactions are usually transient and resolve without intervention. If discomfort persists, consult a healthcare provider.
Permethrin applied to intact skin has negligible systemic absorption, so clinically significant drug-drug interactions are rare. Nevertheless:
Patients should inform their healthcare provider about all medications, including over-the-counter products and herbal supplements, before starting Elimite.
The 30 g tube generally provides enough medication for one full-body treatment of an adult or one scalp treatment for a child.
If a dose is missed, apply as soon as remembered unless it is close to the time for a scheduled repeat dose. Do not apply a double amount.
Excessive topical application may increase systemic absorption and cause neurological symptoms such as tremor, headache, or seizures. In case of suspected overdose, seek emergency medical care; supportive measures are the mainstay of treatment.
Elimite is typically used as a short-course therapy. No tapering is required. If severe skin irritation develops, discontinue use and seek medical advice.
This article provides educational information about Elimite and is not a substitute for professional medical advice. Treatment decisions, including use for unapproved indications, must be made under the guidance of a qualified healthcare provider. The content is intended for informational purposes and does not constitute medical recommendations. Always consult a physician before starting, stopping, or changing any medication regimen.
Elimite is primarily approved for scabies and head lice. Body lice (caused by Pediculus humanus corporis) are usually treated with the same topical permethrin formulations, but the specific indication should be confirmed by a healthcare professional.
Permethrin can leave a light residue on fabrics. Wash stained clothing separately using regular detergent and warm water. If the stain persists, consider using a bleach-free color-safe cleanser.
Permethrin is toxic to cats and certain dog breeds. Elimite is formulated for human skin and should not be applied to animals. Use veterinary-approved products for pet infestations.
A 30 g tube typically provides enough medication to cover the entire body of an adult once, which is sufficient for the recommended single application.
Limited systemic absorption makes topical permethrin low risk, but pregnant individuals should discuss treatment options with their obstetrician before use.
Because absorption is minimal, permethrin does not interfere with standard laboratory tests. However, inform the lab technician of any recent medications as a routine precaution.
Resistance has been reported in some regions for head lice. If treatment fails, a healthcare provider may recommend an alternative agent such as ivermectin.
Yes. Wash all clothing, bedding, and towels used during treatment in hot water (≥ 60 °C) and dry on high heat to eliminate any remaining parasites.
Heat from a hair dryer may increase skin irritation. It is advisable to rinse the product thoroughly and allow the scalp to air-dry before using heat styling tools.
Elimite is a prescription-only medication in Hong Kong and must be obtained through a licensed healthcare professional.
