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Phenothrin, also known as sumithrin and d-phenothrin, is a synthetic pyrethroid that kills adult fleas, ticks and head lice. It is extremely toxic to bees, aquatic life and some mammals, and has been linked to liver cancer and gynecomastia in humans.
Flea medicines need to be used with care because many of them also affect mammals. Pyrethrin based flea treatments meant for dogs can be hazardous to cats. Flea and tick ointment is also hazardous to humans. If the product comes into contact with human skin, it is recommended to wash thoroughly with soap and water.
The Yuma Natural Flea and Tick Chews for Dogs are made with all-natural ingredients and provide a long-lasting, effective solution for keeping your dog flea and tick-free.
In this comprehensive guide, we have curated a list of the 28 best flea and tick medicine Us Weekly has affiliate partnerships so we may receive compensation for some links to products and services.
Fleas are small flightless insects that live as external parasites of mammals and birds. They are about 1.5 to 3.3 millimetres long, have laterally compressed bodies, strong claws, and can jump up to 18 centimetres vertically.
Side effects from DHT blockers used in hair loss prevention shampoos are also uncommon. Some ingredients may cause irritation, dry skin, itchy skin or other similarly minor effects.
Amitraz is a non-systemic acaricide and insecticide that works by overexciting and paralyzing insects. It is used to control mites, ticks, and other pests on plants and animals, but it has some environmental and health risks.
The human flea (Pulex irritans) is a pest that can bite humans and other animals, and can transmit plague. It originated in South America and has a wide host spectrum, but its taxonomy is unclear due to cryptic species and molecular variation.