Permethrin

Permethrin

Permethrin is a highly effective synthetic pyrethroid insecticide and acaricide extensively used in veterinary medicine for external parasite control. It offers potent knockdown and repellent activity against a wide range of pests, including fleas, ticks, lice, mites, and biting flies. Commonly applied in livestock management, it serves as a primary solution for controlling horn flies, face flies, and stable flies in cattle and horses, as well as poultry mites in chicken coops. Permethrin works by disrupting the sodium channels in the nervous system of insects, leading to paralysis and death. Available in versatile formulations such as pour-on solutions, insecticide sprays, dips, and impregnated ear tags, it provides long-lasting residual protection. While highly safe for dogs and livestock, it is notably toxic to cats and must be used with specific care in mixed-pet households.

FAQ（Permethrin）

1. What is Permethrin used for?
It is primarily used as a broad-spectrum ectoparasiticide to control flea and tick infestations in dogs, and to manage flies, lice, and mange mites in livestock and poultry.

2. How is Permethrin administered?
It is strictly for topical application. Common forms include spot-on treatments, pour-on solutions for cattle, livestock sprays, dusting powders, and insecticidal dips.

3. Which animals can use Permethrin?
It is extensively used for dogs, cattle (beef and dairy), horses, sheep, pigs, and poultry. Important: It should NEVER be used on cats as they cannot metabolize it, leading to severe toxicity or death.

4. Is Permethrin safe for livestock?
Yes, it is generally safe for livestock and dogs when used according to label directions. It offers a high safety margin for mammals (except cats) due to poor skin absorption and rapid metabolism.

5. Can Permethrin be used preventively?
Yes, it acts as a powerful repellent (anti-feeding) agent, preventing parasites from biting or attaching. It is a standard component of seasonal fly control programs and tick prevention strategies.